Subject: Re: patch for pre/post-IPSEC traffic with IPv4
To: Darren Reed <>
From: None <>
List: tech-net
Date: 05/01/2003 17:52:27
>In some mail from, sie said:
>> >One thing I did notice was the packets did not seem to have correct
>> >checksums.  Have I picked the wrong place for intercepting IPv4 packets ?
>> 	to me bpf_mtap() in the middle of ip_input() seems to be the cause.
>> >Also, where on earth is the correct place in the KAME IPv6 code to add
>> >similar hooks ?  I had a look but it was not clear where to go..
>> 	i don't think we should put any bpf_mtap() into ip*_input().  it
>> 	belongs to layer 2, not layer 3.
>Do you have a better solution ?

	the best to perform bpf_mtap() is right before IF_ENQUEUE() in