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echo: tech
to: Pascal Schmidt
from: Viktor Pilpenok
date: 2004-01-26 23:36:58
subject: Re: Network link monitor for linux

Hello Pascal!

26 Jan 04 22:00, you wrote to David Drummond:

 DD>> export result=`ping -c 4 -q ispgate | grep avg | wc -l`
 DD>> if [ $result != 1 ]
 DD>>       ...

 PS> Equivalent (or maybe even better, -c 4 does not exit for me when no
 PS> replies come, it waits forever for 4 replies to emerge):

 PS> if ! ping -c 4 -w 4 ispgate &> /dev/null; then
 PS>   ...
 PS> fi

 PS> ping exits with 0 exit status when replies come in, or with 1 when no
 PS> replies come.

Thanx everybody :) I already wrote somethin similar (while waiting for
replies) , I also found that correct usage of lcp-echo-failure &
lcp-echo-interval made pppd detect dead links by itself (and then i launch
the reconection script from the ip-down script.

Best Regards, Viktor (aka BlackDew)

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