an ambiguity of draft-shacham-ippcp-rfc2393bis-07

["Maxim V. Patlasov" <maxim_patlasov@mtu-net.ru>]

draft-shacham-ippcp-rfc2393bis-07 reads:
>   Note: In the case of an encapsulated IP header (e.g., tunnel mode
>   encapsulation in IPsec), the datagram payload is defined to start
>   immediately after the outer IP header; accordingly, the inner IP
>   header is considered part of the payload and is compressed.

It implies that that datagram payload contains ESP header (SPI+RPL)
and so is subject of compression. In the other hand it should not be
compressed because:
>   The compression of outbound IP datagrams MUST be done before any IP
>   security processing, such as encryption and authentication, and

How should the former quote be interpreted ?

Thanks in advance,
Maxim

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• Re: an ambiguity of draft-shacham-ippcp-rfc2393bis-07
• From: Abraham Shacham <shacham@juniper.net>

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