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List:       ipfilter
Subject:    return packet with icmp-type - time-to-live exceeded
From:       Sergey Veltistov <phisto-ml () mail ! ru>
Date:       2002-09-28 20:24:19
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FreeBSD 4.7-RC


I need to return a packet with icmp-type timex on different iface.

Example is a traceroute packet exchange (from 192.168.91.110 to 192.168.5.23)
"
192.168.91.110.39465 > 192.168.5.23.33453: udp 12 [ttl 1]
192.168.112.55 > 192.168.91.110: icmp: time exceeded in-transit
"

192.168.112.55 ext router iface(fxp0)

something like a following:
"
192.168.91.110.39465 > 192.168.5.23.33453: udp 12 [ttl 1]
192.168.112.60 > 192.168.91.110: icmp: time exceeded in-transit
"
192.168.112.60 another ext router iface(fxp1)

Is this possible ?
How to do this ?


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