[techtalk] Gumpish Routing Question

[Samuel Tesla]

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Sounds like the gateway just isn't forwarding packets.  What you probably want
to do is check 

/proc/sys/net/ipv4/ip_forward

It's probably set to zero, so all you need to do is:

# echo 1 > /proc/sys/net/ipv4/ip_forward

On redhat 5.2 you can add the line

FORWARD_IPV4="yes" 

to the file:

/etc/sysconfig/network

Hope that helps. 


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 Samuel Tesla                                                   johngalt at io.com
                              Today's Fortune Is:                             

 Playing an unamplified electric guitar is like strumming on a picnic table.
 		-- Dave Barry, "The Snake"

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On Wed, 9 May 2001, Neale Green wrote:

> 
> Hi Folks,
> 
> As of last night, I have a major routing problem with my Net connection which 
> the ISP CLAIMS isn't at their end. I use the ISP for connection, and DNS, but 
> not for any Proxy (or other) services.
> 
> I know that I SHOULD be able to chase it down and fix it myslef, but I'm having 
> a Forrest Gump Moment (Stupid is, as stupid does), and can't remember what to 
> check.
> 
> My link to the service provider dropped last night, and when I re-initiated it, 
> my Gateway machine could see the DNS server & Internet, AND could see the other 
> machines in my network, but the other machines could only get to the Gateway 
> server via IP, NO name connections, NO pings on any address outside the Gateway.
> 
> Nothing was changed on any of my boxes, and the boxes inside still point to the 
> gateway machine as a default router, and the ISP's DNS servers, but the ISP 
> claims that everything is right at their end, and so it's a problem within my 
> network and/or gateway.
> 
> The problem here is that, for some reason, I can't remember what files have the 
> relevant Network information. ( Once I can verify the info in the Gateway, I 
> can get back to the ISP with the necesary ammo. )
> 
> The Gateway is a Redhat 5.2 box.
> 
> Can anyone help this poor fool, who can't remember a thing at the moment, 
> please? ( Picture a pathetic, pleading, face, 'kay? )
> 
> Sorry for such a stupid question, any advice and/or assistance would be greatly 
> appreciated.
> 
> Regards,
> 
> Neale
> 
> 
> 
> 
> _______________________________________________
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> techtalk at linuxchix.org
> http://www.linux.org.uk/mailman/listinfo/techtalk
> 
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