iptables sharing the net

[Jordi Ferrando Fabra]

I use:
#ROUTER SNAT para la LAN
iptables --table nat --append POSTROUTING --out-interface eth2 -j MASQUERADE

so I think you should do:
iptables --table nat --append POSTROUTING --out-interface ppp0 -j MASQUERADE

(looks a lot like yours, maybe try this)

Donn escribió:
> Yo,
> On my old Dapper install I used to run this command to allow my laptop to surf 
> the net via Kubuntu:
> iptables -t nat -I POSTROUTING -s 172.16.200.0/24 -o ppp0 -j MASQUERADE 
>
> (I connect to my ISP via pppoe)
>
> Diagram:
> laptop <-----> Kubuntu PC <----> RouterThing <---> net
> My Kubuntu PC has 2 eth ports: eth1 is internal (to the laptop) and eth0 is 
> external to the router thing (on the roof - wireless net connection).
> eth0 : IP is whatever.
> eth1 : IP 172.16.200.1
>
> Laptop:
> IP 172.16.200.2
> Gateway 172.16.200.1
>
> I discovered today that I can ping between the two machines but cannot ping 
> form the laptop out to the net -- whether via domain name or IP (I tested 
> google).
>
> I saw some message (can't find out where) implying that ipv6 is being used on 
> eth1, perhaps that's the problem.
>
> Any suggestions? My network savvy is feeble. :)
>
> \
>   


-- 
*Jordi Ferrando Fabra*
*Director Técnico* * NETPLC*

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