
5
Configuring Interfaces
114
Voyager Reference Guide
Example
—
isdn-s2p1
4.
From the pull-down menu in the
L
OGGING
field, select the level of
messages to be logged by ISDN.
All messages of this level and below will be sent to the message log.
Viewing the Message Log
1.
Click
M
ONITOR
on the home page.
2.
Click the
View Message Log
link under the System logs heading.
The most-recent system log messages display.
Tracing
The tcpdump utility can be used to trace ISDN D-channel traffic (Q.921 and
Q.931 protocols) and B-channel traffic (PPP/multilink PPP and TCP/IP
protocols).
When running tcpdump on an ISDN interface, if no options are given on the
command line, the following messages are decoded and displayed:
!
Q.931 messages
!
PPP messages and the fields inside them
!
any IP traffic on the B-channels.
If -e option is specified on the command line, in addition to the above
messages, all Q.921 messages will also be decoded and displayed.
If the -v option is used, Q.931 messages will be displayed. Also the fields in
all PPP messages and their values will be displayed in an extended format.
Tracing ISDN Traffic Using tcpdump
1.
Create a telnet session and log into the firewall.
2.
Type
tcpdump -i <isdn-interface>
Содержание Network Voyager
Страница 1: ...Voyager Reference Guide Part No N450820002 Rev A Published December 2003 ...
Страница 4: ...4 Voyager Reference Guide ...
Страница 30: ...2 How to Use Voyager 30 Voyager Reference Guide ...
Страница 32: ...3 Command Line Utility Files 32 Voyager Reference Guide ...
Страница 220: ...5 Configuring Interfaces 220 Voyager Reference Guide ...
Страница 446: ...7 Configuring Traffic Management 448 Voyager Reference Guide ...
Страница 488: ...8 Configuring Router Services 490 Voyager Reference Guide To make your changes permanent click SAVE ...
Страница 618: ...10 Configuring Security and Access 620 Voyager Reference Guide ...
Страница 668: ...14 Configuring IPv6 670 Voyager Reference Guide ...
Страница 672: ...15 IPSO Process Management 674 Voyager Reference Guide ...
Страница 700: ...Index 702 Voyager Reference Guide ...