[ovs-discuss] Add wildcard openflow rules

[Yue ZHANG]

Thanks, It's very helpful.

I've another question, could I encapsulate the packet and then output it using ovs?

I'd like to add additional mac and ip header to the incoming packet. However, I only find modify actions for packet header in the document.

Thanks.

        2010-11-18
        Yue ZHANG
        cassidy.zy at gmail.com





发件人："Justin Pettit " 
发送日期：2010-11-18 15:13
收件人：Yue ZHANG 
抄送：discuss at openvswitch.org 
主题： Re: [ovs-discuss] Add wildcard openflow rules
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 
> cassidy.zy at gmail.com 
> 2010-11-18 
> _______________________________________________ 
> discuss mailing list 
> discuss at openvswitch.org 
> http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org 

. 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://openvswitch.org/pipermail/ovs-discuss/attachments/20101118/50e163e9/attachment-0001.html>