RFC 4436, "Detecting Network Attachment in IPv4 (DNAv4)", March 2006

Errata ID: 91
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Bernard Aboba
Date Reported: 2007-01-01

Section 2.1.1 says:

   If a valid ARP Reply is received, the MAC address in the sender
   hardware address field (ar$sha) in the ARP Reply is matched against
   the target hardware address field (ar$tpa) in the ARP Request, and
   the IPv4 address in the sender protocol address field (ar$spa) of the
   ARP Reply is matched against the target protocol address field
   (ar$tpa) in the ARP Request.  If a match is found, then the host
   continues to use that IPv4 address, subject to the lease re-
   acquisition and expiration behavior described in Section 4.4.5 of the
   DHCP specification [RFC2131].

It should say:

   If a valid ARP Reply is received, where:
   
   (a) the address in the sender hardware address field (ar$sha) is
       the MAC address of the node being tested for, and
   (b) the address in the sender protocol address field (ar$spa) is
       the IPv4 address of the node being tested for,
   
   then the host concludes that its candidate IPv4 address is valid
   for this network and may continue to be used, subject to the lease
   re-acquisition and expiration behavior described in Section 4.4.5
   of the DHCP specification [RFC2131].

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