On 16-08-2006 16:18, Jacques Rompen wrote:
On 8/16/06, *Jarek Poplawski* <jarkao2@xxxxx <mailto:jarkao2@xxxxx>> wrote:
As far as I know multipath cached should work for routing output
of a current box but it's not working for router (if something
has not changed lately). Multipath without "cached" should do
simple randomization, but maybe for the begining it would be
better to assign fixed paths by source ip and save experimenting
with multipaths for later.
Jarek P.
Hi Jarek,
I will try with only multipath.
Ive tried the static routes. But still ive had trouble getting this code
to work
ip ro add default nexthop via x.x.x.x dev eth1 weight 1 nexthop via
y.y.y.y dev eth2
ip route add default table provider1 via x.x.x.x dev eth1
ip route add default table provider2 via y.y.y.y dev eth2
because x.x.x.x = y.y.y.y in my case. Somehow it doesnt look at the eth
device anymore.
Anyway in my opinion it should work.
Try something like this:
#IP_ROUTE_MULTIPATH = "y"
#(if 2.6.x IP_ROUTE_MULTIPATH_CACHED = "n" !)
#Here with CONNMARK method (so without Anastasov's patch!).
#Change 192.168.0.0/24 and eth0 to your local network
#address/mask and interface.
ip route add default nexthop via x.x.x.x dev eth1 \
nexthop via x.x.x.x dev eth2
ip route add 192.168.0.0/24 dev eth0 table 101
ip route add default via x.x.x.x dev eth1 table 101
ip route add 192.168.0.0/24 dev eth0 table 102
ip route add default via x.x.x.x dev eth2 table 102
ip rule add fwmark 1 table 101
ip rule add fwmark 2 table 102
iptables -t mangle -A POSTROUTING -o eth1 -j MARK --set-mark 1
iptables -t mangle -A POSTROUTING -o eth2 -j MARK --set-mark 2
iptables -t mangle -A POSTROUTING -j CONNMARK --save-mark
iptables -t mangle -A PREROUTING -j CONNMARK --restore-mark
echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
You should also add NAT (MASQERADE) rules.
Nexthop devices will be changed randomly per flow (with some
caching) so try with destinations from different networks.
Jarek P.
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