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Out of office 12/20-12/27



I will be out of the office from 12/20-12/27. I will not be monitoring either 
voice mail or e-mail. 
 
For questions about Secure Network Services, please contact Paul Lambert 
(palamber). 
 
					Thanks, 
					Rick

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>>I've found it useful to describe the possible combinations in terms of
>>a regular expression consisting of IP, AH, and ESP.
>
>Seems to me that any combination of these protocols is possible, if
>not necessarily useful. All three have 8-bit protocol fields in their
>headers that refer to one of the Internet transport protocols,
>including IP (4), AH (51) and ESP (50).

Some combinations may not be possible, due to ambiguities in
processing order.  For example, IP-AH-AH or IP-ESP-AH.

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