On Fri, Oct 15, 2004 at 11:05:41AM +0000, rm@ingsoc.org
wrote:> Hi,
>
> Host A has two interfaces: eth0, tap0.
> I want that all locally generated traffic from user 1004 goes through
> tap0.
>
> This is what I did:
>
> iptables -A OUTPUT -t mangle -m owner --uid-owner 1004 -j MARK --set-mark 2
> echo 202 bigmac.out >> /etc/iproute2/rt_tables
> ip rule add fwmark 2 table bigmac.out
> ip route add default via 10.0.0.1 dev tap0 table bigmac.out
why not change this to
ip route add default via 10.0.0.1 dev tap0 table bigmac.out src
IPADDRESSofTAP0
> ip route flush cache
>
> This results in these problems:
> - packets from 1004 are send out via tap0 but with source ip of eth0.
> (seen in tcpdump -n -i tap0)
> - iptables packetfilter rules have to bet set on eth0 and not on tap0.
> (if i deny everything on -o eth0 no packet is send out to -o tap0
anymore..)
From my understanding the tap packets go over eth0, you still need to
allow ipip packets (can check with tcpdump)
>
>
> Ideas?
>
>
> Ralf
> rm@ingsoc.org
>
>
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