Edgewater Networks 4200 Series User manual

4200 Series
Converged Network Appliance
User Manual
Edgewater Networks, Inc.
2730 San Tomas Expressway
Suite 200
Santa C ara, Ca. 95051
Phone: [phone]
[e-mail]

4200 User Manua Edgewater Networks, Inc.
Version 3.0 2
Copyright (c) 2004, Edgewater Networks, Inc.
Edgewater Confidential, All ights eserved
Part Number: 500-10000-001, v2.3, 8-17-03.
This document is protected by copyright and distributed under icenses restricting its
use, copying, distribution , and decompi ation. No part of this document may be
reproduced in any form by any means without prior written authorization of
Edgewater Networks, Inc. Documentation is provided “as is” without warranty of any
kind, either express or imp ied, inc uding any kind of imp ied or express warranty of
non-infringement of the imp ied warranties of merchantabi ity or fitness for a
particu ar purpose.
EdgeMarc is a trademark of Edgewater Networks, Inc. in the United States and other
countries. Any other trademarks appearing in this manua are owned by their
respective companies.
Export Notice
This product, software and re ated techno ogy is subject to U.S. export contro and
may be subject to export or import regu ations in other countries. Purchaser must
strict y comp y with a such aws and regu ations. A icense to export or re-export
may be required by the U.S. Department of Commerce.
Regulatory Co pliance
This product was tested to comp y with FCC standards for home and office use.
Licensing
Use of this product is subject to Edgewater Networks Software License Agreement.
Portions of this product inc ude software sponsored by the Free Software Foundation
and are covered by the GNU GENERAL PUBLIC LICENSE.
See Appendix E: License Information for more information regarding icenses.

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Chapter 1: Introduction _________________________________________________ 6
Features ______________________________________________________________ 7
Front Panel LEDs ___________________________________________________________ 8
Back Panel _________________________________________________________________ 8
Power Connector____________________________________________________________ 8
LAN Ethernet port __________________________________________________________ 8
WAN Ethernet port__________________________________________________________ 9
Erase Switch (newer hardware will sa “Reset” see below for switch details) __________ 9
Reset Switch________________________________________________________________ 9
Serial Console Port _________________________________________________________ 10
Chapter 2: Getting Started ______________________________________________ 11
Ph sical Installation ________________________________________________________ 11
Desktop Installation ________________________________________________________ 11
Wall-Mount Installation _____________________________________________________ 11
Connecting to the 4200 ______________________________________________________ 12
Chapter 3: Configuration Menu __________________________________________ 13
Network __________________________________________________________________ 13
VoIP ALG ________________________________________________________________ 15
SIP Settings _____________________________________________________________________ 16
MGCP Settings __________________________________________________________________ 18
H.323 Settings ___________________________________________________________________ 19
NAT _____________________________________________________________________ 21
Network Address Translation Configuration____________________________________ 21
Firewall __________________________________________________________________ 23
VPN Configuration _________________________________________________________ 26
DHCP Server ______________________________________________________________ 27
DHCP Rela _______________________________________________________________ 28
Traffic Shaper _____________________________________________________________ 29
S stem ___________________________________________________________________ 31
Network Information ______________________________________________________________ 32
Ro ting Information_______________________________________________________________ 33
Link Stat s ______________________________________________________________________ 33
Interface Information ______________________________________________________________ 33
Proxy ARP ______________________________________________________________________ 34
File Server ______________________________________________________________________ 35
File Download ___________________________________________________________________ 36
System Information _______________________________________________________________ 37

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Network Test Tools _______________________________________________________________ 38
Ro te __________________________________________________________________________ 38
VoIP S bnet Ro ting ______________________________________________________________ 39
Upgrade Firmware ________________________________________________________________ 40
Clients List______________________________________________________________________ 41
Dynamic DNS ___________________________________________________________________ 44
Set Link ________________________________________________________________________ 45
Services Config ration_____________________________________________________________ 47
Certificate ______________________________________________________________________ 49
System Time ____________________________________________________________________ 49
S rvivability_____________________________________________________________________ 50
User Commands__________________________________________________________________ 53
Networking Restart _______________________________________________________________ 54
Reboot System ___________________________________________________________________ 54
Chapter 4: Configuring the 4200 _________________________________________
System Configuration___________________________________________________ 62
Configure the WAN interface ________________________________________________ 62
Configure the LAN interface _________________________________________________ 64
VoIP Configuration ____________________________________________________ 6
Configure the VoIP ALG ____________________________________________________ 65
Set Ethernet Link Rate ______________________________________________________ 66
Configure the DHCP Server__________________________________________________ 67
Configure SNMP ___________________________________________________________ 69
Enable Remote S stem Logging_______________________________________________ 70
Change the Administration Password__________________________________________ 71
VoIP Configuration ____________________________________________________ 71
VoIP Configuration ____________________________________________________ 72
Configure the VoIP ALG ____________________________________________________ 72
Configure VoIP Subnet Routing ______________________________________________ 73
Configure IP Phones, IADs or Softphones ______________________________________ 75
Data Networking Configuration __________________________________________ 77
NAT for Data Traffic _______________________________________________________ 77
Static IP routing ___________________________________________________________ 79
Firewall Configuration _________________________________________________ 80
Configure Basic settings _____________________________________________________ 81
Configure Advanced Settings_________________________________________________ 81
Traffic Management Configuration _______________________________________ 83
Enable Traffic Shaping______________________________________________________ 84
Enable CAC _______________________________________________________________ 85

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A Closer Look at Traffic Management in the 4200 _______________________________ 86
Chapter : System Diagnostics ___________________________________________ 88
Passive Voice Call Monitoring____________________________________________ 90
Accessing Troubleshooting Tools _________________________________________ 92
Chapter 6: Saving and Restoring the 4200 Configuration _____________________ 9
Chapter 7: Upgrading the 4200 __________________________________________ 98
Appendix A: Troubleshooting Tips_______________________________________ 101
Appendix B: Contact Information _______________________________________ 102
Appendix C: Specifications_____________________________________________ 102
Appendix D: Warranty Information______________________________________ 102
Appendix E: License Information _______________________________________ 103

4200 User Manua Edgewater Networks, Inc.
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Chapter 1: Introduction
Thank you for the purchase of your 4200 converged network app iance.
This User's Guide describes the 4200 converged network app iance. This document
introduces the major features of the 4200 and describes how to perform physica
insta ation and system configuration. Additiona information on the features provided
by the 4200 can be found in our extensive know edgebase ocated at
http://www.edgewaternetworks.com/kb .
This User's manua is intended for network insta ers, network operators, and
security officers.
Typographic conventions
Steps in any particu ar task are presented using an a phabetized ist as fo ows:
A.
B.
C.
User input is disp ayed in boldface type and can represent either keyboard input or
mouse se ections in a browser window depending on the context.
Web GUI menus and input areas are ca ed out using italics.
Informationa statements are denoted using the symbo and are presented
using green type.
WARNING statements are denoted using the symbo and contained inside
of grey text boxes using red type.

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The 4200 Converged Network Appliance
The 4200 is a new generation of edge device providing the demarcation point
for rea -time, interactive IP services. It is the idea so ution for connecting
enterprise PCs and IP Phones to a private or pub ic IP network. It rep aces
mu tip e standa one systems by integrating voice-over-IP (VoIP), network
security, traffic management and voice ca qua ity monitoring into a ow-cost,
easi y managed device.
Use the 4200 to ensure high qua ity voice ca s, maximize WAN ink uti ization
for data traffic and protect the enterprise LAN from network based attacks.
Features
 Reso ves NAT/firewa traversa prob ems for VoIP by providing a VoIP
app ication ayer gateway (ALG) that supports SIP, MGCP and H.323
 Support for 2 to 30 concurrent VoIP ca s
 Protects the enterprise LAN using a statefu packet inspection (SPI)
firewa for both voice and data traffic
 Provides NAT and PAT for voice and data
 Performs static IP routing
 Performs traffic management inc uding prioritization, c assification,
queuing, TOS bit setting and ca admission contro for voice
 Provides voice ca qua ity monitoring and testing
 Provides integrated test too s to faci itate prob em iso ation
 Provides a DHCP server for enterprise PCs and IP phones
 Performs TFTP re ay for IP phone images
 Uses a simp e web based GUI for configuration and management
 Supports ogging to externa sys og servers and interfaces to network
management systems using SNMP

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Front Panel LEDs
The LEDs disp ay rea -time information for key functions of the 4200. They are as
fo ows:
LED Label Activity Description
Power On 5 vo ts DC power is supp ied to the unit
Status On A system fau t condition has been detected. P ease contact
Edgewater technica support.
WAN Link/Act F ashing Indicates data traffic sent/received by app iance on the WAN
LAN Link/Act F ashing Indicates data traffic sent/received by app iance on the LAN
100Mbps On Indicates Ethernet ink rate of 100Mbps
Back Panel
The back pane of the 4200 contains the fo owing:
 Power connector
 LAN Ethernet ports
 WAN Ethernet port
 Erase/Reset switch
 Seria conso e port
Power Connector
The 4200 comes with an AC power cord and 5vdc, 3.0 Amp power adapter for
connecting to this port.
LAN Ethernet port
The 4200 series LAN interface is a 4-port switch that uses a sing e IP address.
The LAN Ethernet ports are 10/100 auto sensing ports that shou d be

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connected to IP phones, IADs or PCs insta ed on the oca area network (a so
known as the private network).
WAN Ethernet port
The WAN Ethernet port is a 10/100 auto sensing port that shou d be
connected to the wide area network (a so known as the pub ic network)
through a WAN termination device such as an xDSL modem or router
Erase Switch (newer hardware will say “Reset see below for switch
details)
To erase any custom configuration and restore the 4200 to its factory defau t
state depress the erase button once, wait for the LEDs to i uminate and press
again before 2 seconds expires.
 WARNING: Using the Erase switch as out ined above means any
configuration made to the 4200 wi be ost. Additiona y the VoIP
ALG registration code must be re-entered in the 4200 as covered in
Chapter 4: System Diagnostics, viewing the ALG registration code.
Erasing the configuration means that IP phones insta ed behind the
4200 wi not work and Internet connectivity or network access for
PCs wi be down unti the system is reconfigured.
Reset Switch
To perform a “soft” boot depress the reset button once, to erase the CLI
password and set it back to the factory defau t CLI password depress the
reset button twice, to erase any custom configuration and restore the 4200 to
its factory defau t state depress the reset button three times.
 WARNING: Using the Erase switch as out ined above means any
configuration made to the 4200 wi be ost. Additiona y the VoIP
ALG registration code must be re-entered in the 4200 as covered in
Chapter 4: System Diagnostics, viewing the ALG registration code.
Erasing the configuration means that IP phones insta ed behind the
4200 wi not work and Internet connectivity or network access for
PCs wi be down unti the system is reconfigured.

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Serial Console Port
This port is used to estab ish a oca conso e session with the 4200 using a
VT100 termina or emu ation program. The baud rate is 9600 8 N 1 and None
for f ow contro . It is used for debug or oca diagnostic purposes on y.
Primary configuration of the 4200 is performed from a web browser as
covered in “Chapter 3: Configuring the 4200”.

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Chapter 2: Getting Started
Physical Installation
The 4200 is designed for either desktop or wa mount insta ation. P ease
observe the fo owing guide ines when insta ing the system:
 Never assume that the AC cord is disconnected from a power source.
A ways check first.
 Never p ace objects greater than 5 bs on top of the 4200 as damage
to the chassis may resu t.
 A ways connect the AC power cord to a proper y grounded AC out et to
avoid damage to the system or injury.
 Ensure that the physica ocation of the insta ation has adequate air
circu ation and meets the minimum operating conditions as provided in
the environmenta specifications for the system. These can be found
on our website at www.edgewaternetworks.com.
Desktop Installation
A. Remove the 4200 and accessories from the shipping container.
B. P ace the 4200 on a f at, dry surface such as a desktop, she f or tray.
C. Connect the power and network cab es to the appropriate ports on the back of
the system.
Wall-Mount Installation
The 4200 can be wa -mounted using the two mounting brackets on the bottom of
the app iance. We recommend using two round or pan head screws.
A. Insta two screws 5 14/16
”
horizonta y apart on a wa or other
vertica surface. The screws shou d protrude from the wa so that you
can fit the app iance between the head of the screw and the wa .
B. If you insta the screws in drywa use ho ow wa anchors to ensure
that the unit does not pu from the wa due to pro onged strain from
the cab e and power connectors.
C. Remove the 4200 and accessories from the shipping container.
D. Hang the 4200 on the wa .
E. Connect the power and network cab es to the appropriate ports on the
back of the system.
 WARNING: Secure the power supp y using a fastener or nearby she f
so that it does not hang from the power connector.

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Connecting to the 4200
The 4200 is configured using a web browser such as Internet Exp orer or
Netscape Navigator. The 4200 is shipped with a pre-configured IP address for
its LAN port of 192.168.1.1. To connect to the 4200, do the fo owing:
A. Connect a PC to one of the LAN ports of the 4200 using an IP address of
192.168.1.2 and subnet mask of 255.255.255.0 to one of the 4200 LAN
ports.
B. Launch a web browser on
the PC and enter the URL
string:
http://192.168.1.1. Press
Return. The initia 4200
main configuration menu
appears.
C. Se ect the Network ink -
enter the username root
and the password default to
og into the system.
D. Continue to configure the
system using the information
provided in “Chapter 4:
Configuring the 4200”.

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Chapter 3: Configuration Menu
Network
The system can be configured to support a wide range of mu timedia network
services. These services can be enab ed or disab ed depending on the
functiona ity required for a network configuration. The device's network
settings inc ude configuring the LAN and WAN interfaces, DNS and Defau t
Gateway.
⇒ Se ect Network --

 Networking configuration information for the pub ic and
private networks.
o LAN Interface Settings --

 A LAN is a shared communications
system to which many computers, switches, IP te ephones, and IP
te ephone c ient adapters are attached. In addition to needing an
Internet connection, the system must a so be attached to your LAN to
serve your voice, video and data needs.
o IP Address --

 Your system has been pre-configured with a LAN IP
address of 192.168.1.1, in the IP Address fie d, enter the oca area
network address of the LAN port of the system.
o Note; The system is shipped with a LAN IP
address of 192.168.1.1. This a ows you initia y
access the system using a PC with an IP address
of 192.168.1.2 to configure it. When the systems
LAN IP Address is changed to ref ect your oca
LAN subnet, you wi ose connectivity to the
system unti you change your PC IP to be on the
same subnet.
o Subnet Mask --

 Enter the subnet mask for the LAN IP Address.
The defau t va ue is 255.255.255.0.
o WAN Interface Settings --

 The system is attached to the Internet
with an Ethernet WAN connection or optiona y an integrated T-1
CSU/DSU in the system 4300T devices. A WAN is an extension of an
interna network into a wider area using private circuits such as T-1
ines or virtua circuits in packet switched networks.
☞ ADSL-PPPoE
☞ DHCP
☞ Static

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 ADSL-PPPoE --

 Se ect ADSL-PPPoE to enab e the username
and password options
o User Na e --

 Enter the username given to you by your
network provider.
o Password --

 Enter the password given to you by your
network provider.
o Keepalive Ping --

 If Keepalive Ping is enab ed, your
system wi send an ICMP echo request to its gateway
approximate y in 1 minute interva s to ensure that your ISP
keeps the PPPoP connection open.
o PPPoE Link Status (view only) --

 This wi disp ay the
status of the PPPoE ine “Up” or “Down”.
 DHCP --

 Se ect DHCP if you want to get WAN side IP address
using DHCP server avai ab e in WAN side of the network.
 Note; To view the WAN IP address given to the system,
go to the Network Infor ation page.
 Static --

 Se ect Static if you want to configure WAN interface
with a static IP address (defau t view).
o IP Address --

 Enter the WAN IP address for the system.
o Subnet Mask --

 Enter the Subnet Mask for the WAN IP
address.
o Default Gateway --

 Enter the defau t IP gateway for the
system. This gateway wi be on the same IP subnet as the IP
address.
o Pri ary DNS Server --

 Enter the Pri ary DNS Server for
the system to reso ve domain names to. This address shou d be
supp ied by your ISP provider.
o Secondary DNS Server --

 Enter the Secondary DNS
Server for backup in case the primary is not reachab e. This
address shou d be supp ied by your ISP provider.
⇒ Se ect Sub it

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VoIP ALG
An app ication- ayer gateway provides basic proxy features. Serving as an
ALG proxy, the system maps many network app iances into one or more
pub ic IP addresses and provides the connectivity and management for IP
phones. The ALG must first recognize and register a network app iance before
it presents the IP te ephone or data device through its pub ic WAN port. The
system contains an MGCP, SIP and H.323 ca -contro proxy ALG. VoIP phones
and c ient adapters have to be configured to point to the system, which
serves as a ca -contro server, proxy, gatekeeper or gateway. For corporate
customers with high-end routers and firewa s, the system can be configured
as a VoIP App ication Layer Gateway on y. This a ows a of the norma data
traffic to continue to be hand ed by the existing network devices, and
voice/video traffic to be hand ed by the system. For this configuration, the
system WAN Ethernet port is connected to the internet. The system LAN
Ethernet port is connected to a port on the desired LAN Ethernet switch. The
system can reside on one subnet and be accessed by VoIP devices on other
subnets through the router.
⇒ Se ect VoIP ALG.
o TFTP server IP address --

 This a ows the system to act as a TFTP
server providing subsequent configuration information to other VoIP
phones or devices.
o Use ALG Alias IP Address --

 Enter the IP address on the LAN that
endpoints communicate with. Genera y, this is the same as the LAN IP
address. In some cases, the ALG addresses wi not correspond to the
addresses of the LAN or the WAN ports (e.g. when VRRP is enab ed).
The addresses wi be a ias addresses that have been configured on the
ports. In genera , the user shou d eave this feature disab ed. Check
this box to enab e the be ow IP parameters to be changed.
 Note; VRRP is on y supported in the 5300 and 6400
p atforms.
 Enab e Use ALG Alias IP Address and Submit
o ALG LAN Interface IP --

 Enter the IP address on the LAN
that endpoints communicate with. Genera y, this is the same
as the LAN IP address.
o ALG WAN Interface IP --

 Enter the IP address on the WAN
that communicates with the soft switch. Genera y, this is the
same as the WAN IP address.
 Note; ALG is enab ed on your system, which a ows the
system to recognize and register a network app iance

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before it presents the IP te ephone or data device
through its pub ic WAN port. (see Syste for License
key detai s) When the ALG is not registered this text wi
read “Inva id License Key. The device has to be
registered.”
o Do strict RTP source check --

 This feature is designed to
prevent a specific RTP-based Denia -of-Service attack as we as
address network based gateways that periodica y fai to stop
sending an RTP stream when a ca ends. If the source of an
inbound RTP stream does not match the IP Address and Port for
an existing outbound RTP stream, then it is assumed that the
inbound stream is "rogue RTP". When rogue RTP is detected, a
sys og message is generated and the inbound stream is
dropped.
⇒ Se ect Sub it.
⇒ Se ect the Protoco you want to configure in the Left hand frame;
☞ SIP
☞ MGCP
☞ H.323
SIP Settings
⇒ Se ect VoIP ALG
⇒ Se ect SIP
o SIP Server Address --

 If a SIP ALG is needed, enter the address
(either an IP or URL) for the SIP Server and port number as provided.
The SIP server provides session-initia ization protoco service to IP
phones, c ient adapters and gateways.
o Enable Multi-ho ed Outbound Proxy Mode --

 Enable Multi-
ho ed Outbound Proxy Mode setting a ows phones behind the
same System to uti ize the defau t softswitch or one of their own
choosing.
o Enable Transparent Proxy Mode --

 Enable Transparent Proxy
Mode setting a ows the System to intercept SIP messages from a
LAN-side phone regard ess of the Outbound Proxy and SIP Proxy
va ues configured in the phone.
 Se ect Enable Transparent Proxy ode and submit
o Allowed SIP Proxies --

 Round robin SIP requests
setting forces the System to forward requests from

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endpoints to IP addresses configured be ow in the Round
Robin SIP proxies ist in a round robin manner. Enab e
this feature and submit to view and modify the ist. This
is the ist of outbound proxies or registrars that are
a owed through Transparent Proxy Mode. The SIP
Server Address above is a ways inc uded and does not
have to be in this ist.
o Registration --

 The SIP registration settings a ow the device to
manipu ate the endpoints registration rate.
o SIP Expires Override (s) --

 SIP Expires override fie d specifies
the number of seconds a registration shou d be va id. The system uses
this va ue to re-write the expires va ue returned from the soft-switch.
The va ue is entered in seconds i.e. 30 wi be 30 seconds.
o Soft-Switch Expires Override (s) --

 SIP Soft-Switch expires
override fie d specifies the number of seconds that shou d be used
when forwarding registration messages to the soft-switch. This shou d
be higher than the rate pacing va ue, otherwise, the soft-switch may
consider the phones registration to have expired. If this fie d is not set,
the phones va ue is forwarded unchanged.
o Register Rate Pacing (s) --

 If the SIP Expires override fie d is set
to a ower va ue, the number of registration messages may over oad
the soft-switch. In order to prevent this, you can set the Register
Rate pacing fie d to the number of seconds to wait before forwarding
a register message from one phone to the soft-switch. Any register
messages received before this time wi be oca y answered by the
system. For examp e, you may set the expires va ue to 60 and the
pacing va ue to 1800 to have the phone register to the system every
minute, but on y et a register message through to the soft-switch
every 30 minutes.
o LAN/Subscriber Side Gateway --

 The LAN/Subscriber side
gateway a ows PSTN ca s to go out to a oca gateway. This gateway
can a so be used in survivabi ity mode. The LAN/Subscriber Side
Gateway is used to configure a LAN/Subscriber side SIP gateway to
which ca s that are not for a registered phone can be sent. The name
of the gateway is a oca y meaningfu name. These two fie ds must
both be fi ed in, or both be empty.
o Gateway Na e --

 Enter the gateway name given to the gateway
itse f.
o Gateway Address --

 Enter the IP or FQDN address of the gateway
⇒ Se ect Sub it

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MGCP Settings
⇒ Se ect VoIP ALG
⇒ Se ect MGCP
o MGCP Server IP Address --

 If a MGCP ALG is needed, enter the IP
address for the MGCP Server as provided. The MGCP server provides
media gateway contro protoco service to IP phones, c ient adapters
and gateways.
o MGCP Call Agent Port --

 Call Agent Port specifies the port
number that the Ca Agent (soft-switch) istens to for messages from
the phones. (Defau t is 2727)
o MGCP Media Gateway Port --

 The Media Gateway Port specifies
the port number the Media Gateway (phones) istens to for messages
from the soft-switch. (Defau t is 2427)
o MGCP Notify Entity Port --

 The Notified Entity port specifies the
port number that the soft-switch uses for notifications from the
phones, e.g. hook up, hook down, digits. (Defau t is 2432)
o Re-Registration --

 Re-registration contro s the automatic re-
registration on beha f of the c ients. Auto atic MGCP Re-
registration is used to re-register MGCP endpoints every time the
network or system restarts. Enab e this feature to automatica y
synchronize the softswitch and phones immediate y after a restart. The
defau t is Enabled.
o MGCP Re-Registration Rate (s) --

 MGCP Re-registration Rate
is used to set the number of MGCP RSIP messages to send per second
to the Media Gateway Contro er when re-registration is needed. If the
MGCP Re-registration Rate needs to be changed, enter a va ue
between 1 and 5. Genera y, this va ue does not need to be modified.
The defau t va ue is 5 messages per second.
o MGCP Re-Registration Retry Delay (s) --

 The system re-registers
c ients when it starts up. If any of these re-registration requests fai ,
the system wi wait for the configured number of seconds and then
retry the re-registration for the c ients that fai ed. The system wi
make at most 10 re-registration requests for fai ed attempts. If the
MGCP Re-registration Retry Delay needs to be changed, enter a
va ue between 30 and 60 seconds. Genera y, this va ue does not need
to be modified. The defau t va ue is 30 seconds.
o Audit Endpoint --

 Audit Endpoint a ows the system to detect
whether a c ient is sti responsive.
o Auto atic MGCP Audit --

 The Auto atic MGCP Audit f ag
specifies whether MGCP c ients shou d be automatica y audited by
sending a message to each c ient and wait for a response.

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o Audit Cycle Interval ( ) --

 Audit Cycle Interval specifies how
often these messages shou d be sent out to the c ients. Each cyc e, a
endpoints wi be audited so the rate of messages being sent is
dependent on the number of c ients current y registered. The va ue is
entered in minutes. The defau t va ue is 15 minutes.
o Stale Ti e ( ) --

 Stale Ti e va ue is used to decide when a c ient
is supposed to be deemed sta e, or unavai ab e. The va ue is entered in
minutes. The defau t va ue is 1440 minutes.
o Prevent Stale Registration --

 Prevent stale re-registration f ag
can be used to disab e the automatic MGCP re-registration feature for
sta e c ients.
o Auto atic Client Deletion --

 Auto atic Client Deletion wi
de ete c ients that has been unavai ab e for a given period of time.
o Deletion Ti e ( ) --

 Auto atic Client Deletion wi de ete
c ients that has been unavai ab e for a given period of time and the
Deletion Ti e specifies this time.
⇒ Se ect Sub it
H.323 Settings
⇒ Se ect VoIP ALG
⇒ Se ect H.323
Specify the Gatekeeper ode by se ecting the desired mode. If "No
gatekeeper" is se ected, H.323 processing wi be disab ed. "WAN/Provider-
side gatekeeper" mode wi cause the system to forward a c ient RAS
messages to the gatekeeper. "LAN/Subscriber-side gatekeeper" wi forward
a incoming ca s to the gatekeeper. "Embedded gatekeeper" mode wi cause
the system to act as a gatekeeper itse f.
o WAN/Provider-Side Gatekeeper Settings --

 If "WAN/Provider-
side gatekeeper" mode is se ected, the WAN/Provider-side
gatekeeper settings must be configured. The IP address of the
gatekeeper shou d be entered under WAN/Provider-side GK address.
o LAN/Subscriber-Side Gatekeeper Settings --

 If
"LAN/Subscriber-side gatekeeper" mode is se ected, the
LAN/Subscriber-side gatekeeper settings must be configured. The
IP address of the gatekeeper shou d be entered under LAN/Subscriber-
side GK address.
o E bedded Gatekeeper --

 If "Embedded gatekeeper" mode is
se ected, the E bedded gatekeeper settings must be configured.
☞ Ti e-To-Live va ue specifies how ong an endpoint's
registration shou d be va id.

4200 User Manua Edgewater Networks, Inc.
Version 3.0 20
☞ Send Request-In-Progress checkbox enab es the sending of
Request-In-Progress messages when engthy operations are done,
such as doing a DNS ookup for a domain-name.
o Do ain-Na e --

 The system can strip the given domain-name
from incoming ca s when attempting to match the a ias to a c ient and
strip a domain names from outgoing ca s. When the oca domain-
name is specified, the system wi strip this domain name from any
destination a iases in incoming ca s if present. This wi a ow
endpoints to register with just their extension instead of the who e
user@domain a ias. Do ain-na e settings can be used to strip
domain-names from a iases. This can be used to a ow endpoints to
dia destinations composed of a user or a ias part, the "@" sign, and a
host or IP part, e.g. "[e-mail]", "[e-mail]", or
"[email protected].3.4". When this ca is sent out, or received from the
outside, the host or IP part can be stripped to a ow norma a ias
matching.
o Local-Do ain --

 Local do ain specifies the oca domain of the
system. This domain (if specified) wi be stripped from any incoming
ca s before matching the a ias.
o Strip Outgoing Do ains --

 Strip outgoing do ains wi cause
the domain part to be stripped from any outgoing ca s.
o Convert Digits to E.164 --

 Convert digits to E.164 wi convert
the ca ed a ias to an E.164 a ias if the user part is digits on y. For
examp e, if "[e-mail]" is ca ed, "@company.com" wi be
stripped and the resu ting a ias is "123". Since this a ias on y contains
digits, it wi be converted to an E.164 a ias.
o Ter inal Type --

 Ter inal Type specifies what c ient type sha be
signa ed to the gatekeeper. The Ter inal Type is used to specify the
type of termina that the system shou d use. It can be either endpoint
or gateway.
o Multicast Messages --

 Some RAS messages can be mu ticast in
order to automatica y detect gatekeepers. Multicast Messages
determines whether the system shou d isten and process mu ticast
RAS messages such as Gatekeeper Requests (GRQ) and Location
Requests (LRQ). Processing these messages a ow endpoints to
automatica y detect the system but if mu tip e systems process
mu ticast messages, it can cause a conf ict.
o Bandwidth Settings --

 Bandwidth Settings specifies the
bandwidth to a ow for H.323 ca s. The bandwidth is specified in kbps
and if it is set to 0, bandwidth management is not enforced. On y ca s
with media traversing the system is counted towards the bandwidth
maximum. This number app es to the TOTAL bandwidth maximum
(pay oad + overhead); the actua pay oad amount a owed through wi