Nortel Networks NN46120-104 User Manual

Page 173

Network Diagnostics

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The screen output provides information about the type of iSD (master
or slave), IP address, network mask, and gateway address for the VPN
Gateway you have specified (by host number).

To check general network settings related to the cluster to which you have
connected, type the following command:

>> # /cfg/sys/cur

The screen output provides information about the management IP address
(MIP) of the NVG cluster, DNS servers, iSD hosts in the cluster, Syslog
servers, and NTP servers.

To check if the VPN Gateway(s) is getting network traffic, type the
following command:

>> # /stats/dump

The screen output provides information about currently active request
sessions, total completed request sessions, as well as SSL statistics for
configured virtual SSL servers.

To check statistics for the local Ethernet network interface card, type the
following command::

>> # /info/ethernet

The screen output provides information about the total number of received
and transmitted packets, the number of errors when receiving and
transmitting packets, as well as the type of error such as dropped packets,
overrun packets, malformed packets, packet collisions, and lack of carrier.

To check if a virtual server (on the Nortel Application Switch) is working,
type the following command at any menu prompt:

>> # ping

To capture and analyze TCP traffic sent from a virtual SSL server to the
backend server, type the following command (where you replace "#" with
the index number of the desired virtual SSL server):

>> # /cfg/ssl/server #/trace/tcpdump

Nortel VPN Gateway

User Guide

NN46120-104

02.01

Standard

14 April 2008