Configuration and management
160
4.9
Named loopback addresses
BAT54-Rail/F..
Release
7.54
06/08
4.9.1 Loopback addresses with ICMP polling
Similar to LCP monitoring, ICMP polling transmits regular requests to a re-
mote site. Ping commands are transmitted and the answers to them are mon-
itored. Unlike LCP monitoring, the target site for ICMP pings can be freely
defined. Pinging a router in a remote network thus provides monitoring for the
entire connection and not just the section to the Internet provider.
A ping interval is defined for the remote site in the polling table. Further, for
the event that replies are missed, the number of retries before the transmis-
sion of a new LCP request is defined. Should the transmitter not receive any
reply to the retries, the target for the ping requests is classified as unavail-
able.
Up to four different IP addresses can be entered for each remote site that will
be checked in the remote network in parallel. Only if all of the IP addresses
are unavailable is the connection considered to have failed.
Note: With the ICMP polling, an entire connection can be monitored from end
to end.
D Peer
Name of the remote station which is to be checked with this entry.
D IP address 1 - 4
IP addresses for targeting with ICMP requests to check the remote site.
Configuration tool Menu/Table
LANconfig Communication
 Remote Sites  Polling Table
WEBconfig, Telnet Expert configuration > Setup > WAN > Polling table
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