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NAT problem

Forum: Linux IP NAT Forum
Date: Thu, 01 Apr 1999 22:43:53 GMT
From: G Dallaire <guillaum@digicom.qc.ca>

I have the following problem :

I want to have host X in LAN A visible in LAN B with an IP of then LAN B

LAN A: 192.168.100.0

HOST X: 192.168.100.10

LAN B: 192.168.254.0

IP : 192.168.254.6

on the router between LAN A & B :

arp -s 192.168.254.6 xx:xx:xx:xx:xx:xx pub

ipnatadm -o -I -i -b -S 192.168.100.10/32 -M 192.168.254.6/32

on the HOST X, if I ping a host (192.168.254.2) on the lan B :

IP NAT out (before) eth1 ICMP/0 src:192.168.100.10 dst:192.168.254.2 nat-src:192.168.254.6 nat-dst:0.0.0.0 L=84 S=0x00 I=1163 F=0x0000 T=255

IP NAT out (after) eth1 ICMP/0 src:192.168.254.6 dst:192.168.254.2 nat-src:192.168.254.6 nat-dst:0.0.0.0 L=84 S=0x00 I=1163 F=0x0000 T=255

then there is no echo.

Why the nat-dst is at 0.0.0.0 ?

The host X cannot ping the router when the nat rule is set but without the nat rule, the ping is ok.

I have tried with 2.0.36 and 2.2.5 kernel...

thanks!!

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