Main
3Com TelecommutingModule User Manual: Version 4.3
Table of Contents
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Chapter 1. Introduction to 3Com VCX IP
What is a Telecommuting Module?
Conguration alternatives
DMZ Conguration
DMZ/LAN Conguration
Quick guide to 3Com VCX IP Telecommuting Module installation
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Before you start
About settings in 3Com VCX IP Telecommuting Module
Chapter 2. Installing 3Com VCX IP
Installation
Installation with magic ping
Installation with a serial cable
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Installation with a diskette
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Turning off a Telecommuting Module
Remember to lock up the Telecommuting Module
Chapter 3. Conguring 3Com VCX IP
Logging on
Log on again
Log out
Navigation
Site Map
Overview of conguration
Preliminary and permanent conguration
Conguring IP addresses and masks in 3Com VCX IP
Telecommuting Module
IP address
Mask/Bits
Name queries in 3Com VCX IP Telecommuting Module
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Chapter 4. How To Congure SIP
DMZ Telecommuting Module, SIP server on the outside
Networks and Computers
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DMZ Telecommuting Module, SIP server inside
Networks and Computers
Surroundings
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Basic Conguration
Save/Load Conguration
Standalone Telecommuting Module, SIP server on the outside
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Standalone Telecommuting Module, SIP server inside
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DMZ/LAN Telecommuting Module, SIP server on the outside
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DMZ/LAN Telecommuting Module, SIP server inside
Routing
Interoperability
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Chapter 5. The Serial Console
Connecting to the serial console
Main Menu
1. Basic conguration
2. Save/Load conguration
Basic conguration
IP address
Physical device name
IP address
Netmask/bits
Conguration computers
Congure from a single computer
Congure from multiple computers
Password
Save/Load conguration
Load preliminary conguration
Load both congurations and apply
Save preliminary conguration
Save permanent conguration
Become a failover team member
Leave failover team and become standalone
Wipe email logs
Set password
Exit admin
Chapter 6. Basic Conguration
Basic Conguration
Name of this TelecommutingModule
Default domain
IP policy
Default Gateways
DNS name or IP address
IP address
Gateway Reference Hosts
DNS name or IP address
Access Control
Conguration Allowed Via Interface
User Authentication
Conguration Transport
Conguration via HTTP
Conguration via HTTPS
Conguration Computers
DNS Name Or Network Address
Network Address
Netmask/Bits
Range
RADIUS
RADIUS Servers
Identier
Contact IP Address
Status for RADIUS servers
Conguration of a RADIUS server
SNMP
SNMP v1 and v2c
SNMP v3
SNMP Traps
Download the 3Com MIB
Certicates
Private Certicates
Create certicate or certicate request
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CA Certicates
Information
Telecommuting Module Type
The DMZ Conguration
The DMZ/LAN Conguration
The Standalone Conguration
Telecommuting Module Typeconguration
Current TelecommutingModule Type
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Chapter 7. Network Conguration
Networks and Computers
Name
Subgroup
Lower Limit
DNS Name Or IP Address
IP Address
Upper Limit
Interface (Network Interface 1 and 2)
Physical device name
Status
Interface name
Directly Connected Networks
Alias
Static routing
Routed network
Router
VLAN
Interface Status
Surroundings
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Chapter 8. SIP Services
Administration of SIP
Basic
SIP media port range
SIP Servers To Monitor
Logging
Log class for SIP signaling
Log class for SIP packets
Log class for SIP debug messages
Interoperability
Loose routing
Relaxed Refer-To
Remove VIA headers
Translation exceptions
Preserve username
Loose username check
SIP URL encryption
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Force Record-Route For All Requests
Force remote TLS connection reuse
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Sessions and Media
Session Conguration
Requests
Maximum number of retransmissions for non-INVITE requests
Remote SIP Connectivity
STUN Server
STUN server function
STUN server IP addresses
STUN ports
Remote NAT Traversal
Remote NATtraversal
Re-REGISTER period for clients
Use OPTIONS for registered clients
OPTIONS interval
Chapter 9. SIP Trafc
SIP Methods
Routing
Domain or IP address
Port
Class 3xx message processing
Forward class 3xx messages
DNS Override For SIP Requests
Domain
Relay to
Session Status
Registered Users
Active Sessions
Chapter 10. Administration
Save/Load Conguration
Test Preliminary Conguration
Duration of limited test mode
Apply conguration
Backup
Save to diskette
Load from diskette
Save to local le
Load from local le
Show conguration
User Administration
Password For the admin Account
Other Accounts
Currently Logged In Administrators
Log out
Upgrade
Upgrade
Step 1
Step 2
Step 3
Table Look
Edit Column
Always have an Edit column
Sometimes have an Edit column
Never have an Edit column
Date and Time
Change Time Zone
Change Date and Time Manually
Date
Time
Set date and time manually
Change Date and Time With NTP
Restart
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Chapter 11. Logging
Display Log
Packet TypeSelection
IP Address Selection
Protocol/Port Selection
All IP protocols
TCP/UDP
ICMP
Beside the boxes
Show newest at top
Time Limits
Periodical search
Show This
The log
Display Load
Time Period
Interface
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Resource Monitoring
Logging Conguration
Inbound trafc
Warnings
VPN events
SIP events
Log Classes
Log Sending
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Chapter 12. Failover
Specication of failover
Requirements
Features
Failover Telecommuting Module setup
Failover Settings
Dedicated interface
The dedicated interface to use
Dedicated network
Failover type
Reference Hosts
Failover Status
Failover Status
Failover team
Leaving a failover team
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Chapter 13. Tools
Packet Capture
Network Interface Selection
IP Address Selection
Protocol/Port Selection
All IP protocols
TCP/UDP
ICMP
ESP
Collect data
Chapter 14. Firewall and Client Conguration
The DMZ type
The Firewall
The SIP clients
The DMZ/LAN type
The Firewall
The Standalone type
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Appendix A. More About SIP
The SIP protocol
Why use SIP?
SIP and rewalls
SIP sessions
Establishing a SIP session
Appendix B. Troubleshooting
Network troubleshooting
No trafc shown in the log
Trafc discarded as spoofed
SIP troubleshooting
VPN troubleshooting
No IPsec tunnel established
IPsec tunnel established, no trafc
IPsec tunnel established, no trafc after some time
Administration troubleshooting
The Telecommuting Module is unaccessible forsome time when trying to apply a conguration
Appendix C. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols
List of the most important reserved ports
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List of ICMP types
ICMP codes
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Internet protocols and their numbers
IP intervals
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Reserved IP addresses
Appendix D. Denitions of terms
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Appendix E. License Conditions
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Preamble
GNU GENERAL PUBLIC LICENSE
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GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Preamble
GNU LESSER GENERAL PUBLIC LICENSE
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The Python license
Terms and conditions for accessing or otherwise using Python
CWI PERMISSIONS STATEMENT AND DISCLAIMER
Python Imaging Library
The BSD license
The MIT license
The DHCP license
The OpenSSL license
The bzip2 license
The lilo license
The Vovida license
The VovidaSoftware License , Version1.0
The Cavium license
The Cavium License
The zlib license
Appendix F. Obtaining Support for Your 3Com Products
Register Your Product to Gain Service Benets
Solve Problems Online
Purchase Extended Warranty and Professional Services
Access Software Downloads
Telephone TechnicalSupport and Repair
Asia, Pacic Rim - TelephoneTechnical Support and Repair
Europe, Middle East, and Africa - TelephoneTechnical Support and Repair
Latin America - Telephone TechnicalSupport and Repair
US and Canada - Telephone TechnicalSupport and Repair
Index