header
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... IPsec Encapsulating Security Payload (ESP) or
Authentication Header (AH) security association (SA ...
... AH is able to provide integrity
protection for certain fields in the outer IPv4 header and IPv4
options. However, as the outer IPv4 header ...
... header and IPv4
options. However, as the outer IPv4 header will be discarded in any
case, and those particular fields are not believed to be relevant in
...
... +----------------------------+------------------------------------+
| IPv4 header | (src = IPV4-TEP1, dst = IPV4-TEP2) |
...
... Kent, S., "IP Authentication Header", RFC 4302prop, December 2005. ...