SPI question
"Amal Maalouf" <amalmaal@nortel.ca> Wed, 27 May 1998 12:23 UTC
Received: (from majordom@localhost) by portal.ex.tis.com (8.8.2/8.8.2) id IAA20424 for ipsec-outgoing; Wed, 27 May 1998 08:23:08 -0400 (EDT)
Message-Id: <199805271234.IAA15259@relay.hq.tis.com>
Date: Wed, 27 May 1998 08:36:00 -0400
To: ipsec@tis.com
From: Amal Maalouf <amalmaal@nortel.ca>
Subject: SPI question
Sender: owner-ipsec@ex.tis.com
Precedence: bulk
Hello, Please can anyone clarify the following.. When two end systems are negotiating an SA using Quick mode, the initiator sends an ISAKMP message with the SA payload, proposal payload(s) and transform payload(s). What does the initiator fill in the SPI field of the proposal payload? Is this SPI used at all to identify the SAs created on both sides? I understood from reading the AH/ESP drafts that it is the responder that specifies the SPI that the initiator is to use in the AH header and/or ESP header sent to the responder. I figuered that this SPI is sent from the responder to the initiator when the responder chooses one of the proposals that the initiator is suggesting, i.e. when the responder responds in the SA Quick mode negotiation. If this is the case, then what is the SPI field set by the initiator in this negotiation used for? Thanks, Amal.
- SPI question Amal Maalouf
- Re: SPI question Srinivas. B. Kulkarni
- RE: SPI question Stephen Waters
- RE: SPI question Kai Martius
- RE: SPI question CJ Gibson