Subject: Re: [RFC/PATCH] "strict" ipv4 reassembly

From: Andi Kleen <[email-masked]>
Date: Tue, 17 May 2005 21:53:08 +0200

Rick Jones <[email-masked]> writes:

>> Actually, the problem is much worse now - we have virtual
>> partitions in the Xen environment for instance where some
>> packets are headed for local consumption (virtual network,
>> no actual network latency to speak of) and some going
>> out to the network. Having a global IP id generator just
>> won't be able to keep up - we could wrap in submilliseconds...
>
> and the classic TCP sequence number isn't _really_ all that far behind :)

But it has PAWS at least. But I agree even IPv6 fragmentation
with 32bit IDs is not significantly safer.

-Andi