Hi Horms,
I see that this patch probably makes IPVS code a bit complicated and packet traversing less efficiently.
If I remember correctly, policy-based routing can work with IPVS in kernel 2.2 and 2.4 for transparent cache cluster for a long time. It should work in kernel 2.6 too.
For example, we can use iptables/ipchains to mark all web traffic with fwmark 1, then use policy-based routing to route all web traffic through NF_IP_LOCAL_IN, so that ip_vs_in can capture the packets and load balance packets to cache servers.
ip rule add prio 100 fwmark 1 table 100 ip route add local 0/0 dev lo table 100 ipvsadm -A -f 1 -s wlc ipvsadm -a -f 1 -w 100 -r cache1 ipvsadm -a -f 1 -w 100 -r cache2 ipvsadm -a -f 1 -w 100 -r cache2 ... Cheers, Wensong Horms wrote:
This seems to be a pretty clean solution to a real problem. Ultimately I would like to see IPVS move into the forward chain. This seems to be a nice way to explore that, without breaking any existing setups.
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