Hi.. Thanks for your reply. I agree that an interface can have more than one ipv6 addresses but in the PoC I am doing for an IP Traceback technique, I need to record a hash of the IP of incoming interface. For that I need to be able to read the packet. Your reply gave me a direction to explore the use of dev->ip6_ptr->ac_list .. For ipv6. However I m not sure what is ac_list and what is mc_list here.. I wonder if there is some documentation around it in this world. Can you please give me a pointer or if you could brief me about how do I list all ipv6 addresses of the interface. Well, yet I tried to get the ip addresses pointed to by ac_list and before I could see if it displays something, system slows down unbelievably with syllogism error as 'takedown serio0. Some program might be trying to access hardware directly." And mouse stops moving. I am not sure if this error is a result of my operation or something else. I will try loading this module Again. But any comments from your side on this please? Thanks Maninder > On 24-Sep-2014, at 1:11 pm, Vlad Dogaru <ddvlad@xxxxxxxxxxxxxxxx> 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. > > However, you can find out all the IPv4 addresses a particular device has > by iterating through dev->ip_ptr->ifa_list. > > Hope this helps, > Vlad _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
