On Thu, 10 Feb 2011 12:15:52 GMT, David Freedman said:
> these people are doing this by design, I think thats the point I'm
> trying to get across, if you will never need to process TOOBIG in your
> design, there is no need to accept it.
And how many networks break PMTUD because their design says
Iljitsch van Beijnum wrote:
> On 10 feb 2011, at 0:26, David Freedman wrote:
>
>>> Unless every packet you emit is ≤ the minimum MTU (1280), then, you need
>>> to be able to receive TOOBIG messages.
>
>> Can you think of a packet type I will emit from my publically numbered
>> backbone interface
On 10 feb 2011, at 0:26, David Freedman wrote:
>> Unless every packet you emit is ≤ the minimum MTU (1280), then, you need
>> to be able to receive TOOBIG messages.
> Can you think of a packet type I will emit from my publically numbered
> backbone interface which may solicit a TOOBIG that I'll h
> Unless every packet you emit is ¾ the minimum MTU (1280), then, you need
> to be able to receive TOOBIG messages.
Can you think of a packet type I will emit from my publically numbered
backbone interface which may solicit a TOOBIG that I'll have to care about?
I can only think of three cases,
On Feb 9, 2011, at 9:50 AM, David Freedman wrote:
> Iljitsch van Beijnum wrote:
>> On 9 feb 2011, at 18:30, David Freedman wrote:
>>
>>> (yes, even ICMP TOOBIG
>>> can be filtered safely if you have designed things in a sane way)
>>
>> NO.
>>
>> Even if you run with 1280-byte MTUs everywhere s
Iljitsch van Beijnum wrote:
> On 9 feb 2011, at 18:30, David Freedman wrote:
>
>> (yes, even ICMP TOOBIG
>> can be filtered safely if you have designed things in a sane way)
>
> NO.
>
> Even if you run with 1280-byte MTUs everywhere so you'd think path MTU
> discovery wouldn't be needed, this c
On 9 feb 2011, at 18:30, David Freedman wrote:
> (yes, even ICMP TOOBIG
> can be filtered safely if you have designed things in a sane way)
NO.
Even if you run with 1280-byte MTUs everywhere so you'd think path MTU
discovery wouldn't be needed, this can still cause problems with IPv6-to-IPv4
t
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