Hi Kris -
OK - now I can see the problem. I can't ping successfully at 2048 - the
packets time out. Setting Allow Fragmented Packets over AH (or I assume
ESP) does not help.
So, the only solution is to use your modified image? If so, can I
install that remotely using the Firmware->Upload mechanism?
Kristian Shaw wrote:
> Just to answer another part of your email:
>> I ran ping tests from the client system to the Exchange system (ping
>> the.server.com -f -l 1472) the result of these was no fragmentation
>> up to 1472. I also ran Network Monitor on the Exchange Server, which
>> was inconclusive, but admitting my ignorance: is there a way to
>> detect fragmented packets using Network Monitor? There was nothing
>> obvious in the traces that I ran.
> You should also be able to ping larger packets than 1472/1500 too,
> because although they are larger than the ethernet MTU Exchange and
> Outlook will still send them (RPC).
> ping -l 2048 host_name should work too (and not get silently