[VRRP] VRRPv3 IPv6 RFC-5798 checksum
joe mcfar <jrtcmcfar@gmail.com> Mon, 07 May 2012 21:49 UTC
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Date: Mon, 07 May 2012 16:49:46 -0500
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From: joe mcfar <jrtcmcfar@gmail.com>
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Subject: [VRRP] VRRPv3 IPv6 RFC-5798 checksum
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I am testing interoperability with one major vendor’s VRRPv3 IPv6 implementation and was surprised to find that the vendor’s unit does not include an IPv6 pseudo-header along with the VRRPv3 packet data when calculating the checksum. The current version of Wireshark (1.6.7) also shows the VRRPv3 checksum as incorrect. This would probably only be an issue when trying to interoperate with another vendor’s implementation. I’m interpreting RFC-5798 section 5.2.8 to say to calculate the checksum over both the VRRPv3 packet data starting with the version field, AND over the IPv6 pseudo-header (source, destination IPv6 addresses, upper layer packet length, zero field, and next header of 112 for VRRP.) Can someone on this mailing list verify my interpretation? Thanks, Joe McFarland
- [VRRP] VRRPv3 IPv6 RFC-5798 checksum joe mcfar
- Re: [VRRP] VRRPv3 IPv6 RFC-5798 checksum Tomoyuki Sahara