[vpn-help] No connect when configured for jumbo frames

[Paul Theodoropoulos]

Except that all of my other connectivity was unaffected, which is why I 
posted to the list. It seemed specific to shrew. But I did a little 
further reading, and it does seem that jumbo's simply aren't relevant 
outside of LAN-to-LAN communication, so it's fairly pointless to use 
them outside of that need.

On 10/25/13, 5:09 AM, Thomas Stokkeland wrote:
> I dont know anything about Jumbo's in the context of IPSec - but in 
> general, Jumbo's is only for SAN traffic, a packet larger than 1500 is 
> generally not routable - so it makes sense to me that a large MTU will 
> break any type of connectivity on layer 3 outside the local subnet and 
> collision domain.
>
>
> On 10/25/2013 2:56 AM, Paul Theodoropoulos wrote:
>> Just discovered purely by accident that if I configure my ethernet 
>> adapter to use 9k jumbo frames (same as my gb ethernet switch 
>> supports), Shrew will 'reliably' fail to establish any part of a 
>> connection. Reconfiguring the adapter to jumbo frames disabled 
>> restores ability to connect.
>>
>> Odd. Thoughts?
>>
>
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-- 
Paul Theodoropoulos
www.anastrophe.com

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