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
[email protected]
发件人："Justin Pettit "
发送日期：2010-11-18 15:13
收件人：Yue ZHANG
抄送：[email protected]
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
> [email protected]
> 2010-11-18
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