Sept. 24, 2014
2:08 p.m.
On Wed, Sep 24, 2014 at 10:41:54AM +0300, Vlad Dogaru wrote:
On Wed, Sep 24, 2014 at 10:19:34AM +0530, Maninder Singh wrote:
Hi,
Each time a packet arrives at a router in a subnet during transit, I need to determine the IP address of the incoming interface of the router for that packet. I have a netfilter kernel module running at each router but I dont understand which data structure will give me thw IP address. Can someone please suggest how shall I get that?
An interface can have more than one IP address, so your question is a little strange.
why not look at the destination ip of the ip header?