Re: Help:Problems with routing
And, for masquerading/simple firewall:
iptables -A INPUT -i ppp0 -m state --state NEW,INVALID -j DROP
iptables -A FORWARD -i ppp0 -m state --state NEW,INVALID -j DROP
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward
assuming that your kernel was compiled with iptable support.
san
On Sat, 2001-11-24 at 22:33, San Segkhoonthod wrote:
> > Eth0 192.168.10.5 (desktop as an alias)
> >
> > # route
> > Destination Gateway Genmask Flags Metric Ref
> Use Iface
> > 212.210.33.130 * 255.255.255.255 UH 0 0
> 0 ppp0
> > 192.168.10.0 * 255.255.255.0 U 0 0
> 0 eth0
> > default desktop 0.0.0.0 UG 0 0
> 0 eth
>
> Your desktop's default route should be ppp0, not eth0, like this:
>
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 212.210.33.130 * 255.255.255.255 UH 0 0 0
> ppp0
> 192.168.10.0 * 255.255.255.0 U 0 0 0
> eth0
> default 212.210.33.130 0.0.0.0 UG 0 0 0
> ppp0
>
> from your current routing table, try to:
> # route del default
> # route add default gw 212.210.33.130 dev ppp0
>
> san
>
> On Sat, 2001-11-24 at 22:49, Vittorio wrote:
> > Please help!
> > I can connect my portable PC to my desktop via ethernet
> > cards (eth0) and use ping, NFS, samba etc.
> >
> > Now, after re-reading Net-HOWTO and following the examples in it, I've
> > been trying to set my desktop and its eth0 and ppp0 connections as a
> > router for my portable in order to use email and the internet on it by
> > means of ethernet connection. In a nutshell, the first 'extremely
> > simple' routing configuration in the HOWTO!
> >
> > Even though I've followed the easy instructions using the command
> > 'route add..' etc, it simply doesn't work in my case.
> >
> > Here it is the basic configuration info
> >
> > On both system woody with 2.4.13 kernel
> >
> > On my desktop (the would-be router)
> >
> > Eth0 192.168.10.5 (desktop as an alias)
> >
> > # route
> > Destination Gateway Genmask Flags Metric Ref Use Iface
> > 212.210.33.130 * 255.255.255.255 UH 0 0 0 ppp0
> > 192.168.10.0 * 255.255.255.0 U 0 0 0 eth0
> > default desktop 0.0.0.0 UG 0 0 0 eth0
> >
> > On my portable PC (the only client)
> >
> > # route
> > Kernel IP routing table
> > Destination Gateway Genmask Flags Metric Ref Use Iface
> > default desktop 255.255.255.0 UG 0 0 0 eth0
> > 192.168.10.0 * 255.255.255.0 U 0 0 0 eth0
> >
> >
> > I can of course ping the eth0 on both sides using also their aliases
> > but......
> > the result when I try to ping a working internet address from my client is as
> > follows:
> >
> > #ping 195.110.96.65 #
> >
> > PING 195.110.96.65 (195.110.96.65): 56 data bytes
> > ping: sendto: Network is unreachable
> > ping: wrote 195.110.96.65 64 chars, ret=-1
> >
> >
> > What's wrong with it?
> >
> > Vittorio
> >
> >
> >
> > --
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> >
> >
>
>
>
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