Re: How do we determine IP Address of interface the packet arrived on

On Wed, 24 Sep 2014 10:19:34 +0530, Maninder Singh said:

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.

What problem are you trying to solve using the IP address of the interface, given that a single interface can have multiple IP addresses? (Also - are your writing your code to be IPv6-ready? :)