RFC Errata


Errata Search

 
Source of RFC  
Summary Table Full Records

RFC 5310, "IS-IS Generic Cryptographic Authentication", February 2009

Source of RFC: isis (rtg)

Errata ID: 2461
Status: Rejected
Type: Technical
Publication Format(s) : TEXT

Reported By: Tony Li
Date Reported: 2010-08-12
Rejected by: Adrian Farrel
Date Rejected: 2012-08-16

Section 3.4 says:

The authentication data for the IS-IS IIH PDUs MUST be computed after
the IS-IS Hello (IIH) has been padded to the MTU size, if padding is 
not explicitly disabled.

It should say:

The authentication data for the IS-IS IIH PDUs MUST be computed after
the IS-IS Hello (IIH) has been padded to the MTU size, if padding is
not explicitly disabled.

ISes (routers) that implement CRYPTO_AUTH authentication and initiate LSP
purges MUST remove the body of the LSP and add the authentication TLV.  

Notes:

The RFC ignores the case of when an IS initiates a purge. Purges MUST be authenticated explicitly, otherwise the default protocol machinery will leave open a trivial attack.
--VERIFIER NOTES--
This issue appears to be correct, but does not qualify as something that can be addressed through the Errata System because it is a functional change to the document, not a typo. If the WG feels that it needs to be addressed, this should be captured in a new I-D.

Report New Errata