Hi all
I have two hosts and both have two NICs.
CLIENT: eth0 - ipc0 = 2001:660:5301:26:2c0:9fff:fe1a:caca
eth1 - ipc1 = 2001:688:1fa1:2:204:75ff:fef8:93a4
SERVER: eth0 - ips0 = 2001:660:5301:26:210:5aff:febe:bb78
eth1 - ips1 = 2001:688:1fa1:2:204:75ff:fee8:52fd
As you can see, both eth0 are connected to the same LAN (so have IPv6
addresses from the same LAN), and both eth1 are connected to the second
LAN.
According to the normal IPv6 routing, all packets exit from CLIENT to ips0
always via eth0, and to ips1 always via eth1.
But when I have a client program bound to ipc0 (src = ipc0) I would like
to see all packets exiting via eth0, both packets going to ips0 and to
ips1. The same way, packets from a client bound to ipc1 (src = ipc1)
should always exit via eth1. Like this:
1) (ipc0 -> ips0) via eth0
2) (ipc0 -> ips1) via eth0
3) (ipc1 -> ips0) via eth1
4) (ipc1 -> ips1) via eth1
To obtain this I used kernel 2.4.22 with netfilter and patch-o-matic
module ROUTE, and configured this way:
mykonos:~ # ip6tables -t mangle -A POSTROUTING --source
2001:660:5301:26:2c0:9fff:fe1a:caca -j ROUTE --oif eth0 --continue
mykonos:~ # ip6tables -t mangle -A POSTROUTING --source
2001:688:1fa1:2:204:75ff:fef8:93a4 -j ROUTE --oif eth1 --continue
mykonos:~ # ip6tables -t mangle -nL
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
ROUTE all 2001:660:5301:26:2c0:9fff:fe1a:caca/128 ::/0
ROUTE oif:eth0 continue
ROUTE all 2001:688:1fa1:2:204:75ff:fef8:93a4/128 ::/0
ROUTE oif:eth1 continue
But it works only in cases 1) and 4). In cases 2) and 3) it gives the
following messages in /var/log/messages:
Dec 1 15:52:29 mykonos kernel: ip6t_ROUTE: no explicit route found via
interface eth1
Dec 1 15:52:45 mykonos kernel: ip6t_ROUTE: called with:
DST=2001:0688:1fa1:0002:0204:75ff:fee8:52fd
GATEWAY=0000:0000:0000:0000:0000:0000:0000
:0000 OUT=eth0
Dec 1 15:52:45 mykonos kernel: ip6t_ROUTE: no explicit route found via
interface eth0
Dec 1 15:52:48 mykonos kernel: ip6t_ROUTE: called with:
DST=2001:0688:1fa1:0002:0204:75ff:fee8:52fd
GATEWAY=0000:0000:0000:0000:0000:0000:0000
:0000 OUT=eth0
And I cannot see any packet exiting any interface.
Could anybody help me with this configuration to reach my target, please
??? Or maybe I should change something in my routing table ???
Regards
Pawel
