Try looking at the "resubmit" action in ovs-ofctl. You could use the first lookup to match and modify the source address and the second to match and modify the destination, for example.
--Justin On Nov 17, 2010, at 11:02 PM, Yue ZHANG wrote: > Dear staff, > > > In my research, I want to do something like NAT, that modify both IP packets' > src and dst address each to each. > > For example: > ovs-ofctl add-flow br1 > nw_src=192.168.1.2,nw_dst=192.168.2.2,idle_timeout=0,icmp,action=mod_nw_src:172.16.206.2,mod_nw_dst:172.16.121.2,output:0 > ovs-ofctl add-flow br1 > nw_src=192.168.1.2,nw_dst=192.168.2.3,idle_timeout=0,icmp,action=mod_nw_src:172.16.206.2,mod_nw_dst:172.16.121.3,output:0 > > These two rules could modify src from 192.168.1.x to 172.16.206.x, and dst > from 192.168.2.y to 172.16.121.y, respectively. > > The question is: > If I have 254 possible values for both x and y, then I need 254x254 openflow > rules for each IP pair. > Could I modify all the nw_src first, then modify nw_dst and output the > packet, means only need 254+254 rules. > Is there any simple way to do this? Thanks very much. > > > Regards. > Yue ZHANG > [email protected] > 2010-11-18 > _______________________________________________ > discuss mailing list > [email protected] > http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org
