On Mon, Jan 06, 2014 at 11:11:11PM -0500, Jason Thorpe wrote: > > <jasonthor...@outlook.com<mailto:jasonthor...@outlook.com>> wrote: > > is it possible to modify specific bits of an IP address when setting > > flow rules for a switch? (using add-flow and > > actions=mod_nw_{src,dst} ). > > > > That won't work, since that action is expecting a specific IP address. > > > > basically, I am looking for setting actions on the IP address to change > > some source/destination. like modifying all IPs from 192.168.0.* to > > 192.168.1.* . or can I just use wildcards for this purpose? > > > > I hadn't really thought about it before, but I suppose you could load > > the IP address into a register, then modify the appropriate bits with > > the move action, and then use the move action to copy the contents of > > the register into NXM_OF_IP_DST. > > I need to do this for many IP addresses. What I am trying to do here > is to replicate the Modelnet bitflip behaviour where the 23rd bit of > the source and destination addresses are flipped [10.128.0.1 -> > 10.0.0.1].
ovs-ofctl add-flow br0 'ip,nw_src=0.128.0.0/0.128.0.0,actions=load:0->NXM_OF_IP_SRC[23]' ovs-ofctl add-flow br0 'ip,nw_src=0.0.0.0/0.128.0.0,actions=load:1->NXM_OF_IP_SRC[23]' _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
