Re: Path MTU for draft-ietf-v6ops-mech-v2-00.txt

[Erik Nordmark <Erik.Nordmark@sun.com>]

> >Finally the spec allows for manual configuration to override the 1280 number
> >in the static/fixed MTU case, but only if the receiver can handle reassembly
> >of the larger IPv4 packets. Thus it requires manual coordination between >
>the encapsulator and decapsulator to do this manual override.  >
> Are there any concerns for denial of service based on receive buffer overrun
> at the decapsulator in this case?

Not any worse than a factor MTU/1460 than in the normal case.
I.e. if the decapsulator has been configured to use e.g. 9kbyte buffers for a 
particular tunnel it might use 9k/1460 times more memory for buffers
for that tunnel.

  Erik