On Mon, Jun 04, 2001 at 05:20:13PM -0500, Sridhar Gurivireddy wrote:
> even if fragmentation done only at the source,
> it may have this problem because,.....
> say IP header(with extensions) is of size 4k!!!!!
> it's framented for the first time.....
> you get three pieces..
> yu add header to each piece...
> each piece is now again >4k...
> so, fragmentation again....
> Does this problem occur..
> Thanks for the sharp response
It's not exactly recursion. The only problem I see, is if the size of the
IPv6 header plus hop-by-hop options and routing header (the headers that
must be inspected by routers) plus fragmentation header is >= path MTU.
This is explained in RFC 2460. The path MTU is guaranteed to be at least
1280.
Stig
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