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Subject: Re: Routing: Ping from router A to Host behind Router B does not work
From: Keith Smith <keith,AT,ksmith,DOT,com>
Date: Tue, 5 Feb 2002 21:29:38 +0100
In-reply-to: <003701c1ae64$1e6a9a70$9603a8c0@Gundy>

Nils Lichtenfeld wrote:

> I still do not understand why a simple
> ipchains -A forward -s 192.168.3.0/24 -d 192.168.1.0/24 -j ACCEPT
> ipchains -A forward -s 192.168.1.0/24 -d 192.168.3.0/24 -j ACCEPT
> ipchains -A forward -s 192.168.3.0/24 -j MASQ
> for Router B (and the reverse for Router A) is not doing it. (Ping goes 
>Host A -> Router B but not Router B -> Host A !!)
> 
> Still screwed..
> MFG Nils

It should, but again you need to find out which machine is having the 
problem.  Where does the trace from rB to hA stop?

what does cat /proc/sys/net/ipv4/ip_forward say on rA?

What do traceroutes from both directions show?

-- 
Keith Smith                 keith,AT,ksmith,DOT,com
655 W Fremont Dr
Tempe AZ 85282              it's hot





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