From: Thomas Markwalder Date: Tue, 10 Mar 2015 20:09:43 +0000 (-0400) Subject: [3691] Amending Kea admin guide discussion of DHCPv6 mac-source:link-local-address X-Git-Tag: trac3764_base~21^2~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e25bab022a4590333bf61f9a5fc144426f4f8765;p=thirdparty%2Fkea.git [3691] Amending Kea admin guide discussion of DHCPv6 mac-source:link-local-address Added text clarifying that MAX extraction from the link-local-address only succeeds if the address is marked as interface identifier. --- diff --git a/doc/guide/dhcp6-srv.xml b/doc/guide/dhcp6-srv.xml index b0b7fd7b6d..cae61fbccc 100644 --- a/doc/guide/dhcp6-srv.xml +++ b/doc/guide/dhcp6-srv.xml @@ -2356,8 +2356,10 @@ should include options from the isc option space: sending their packets from IPv6 link-local addresses. There's a good chance that those addresses are based on EUI-64, which contains MAC address. This method is not completely reliable, as clients may use other link-local address - types. In particular, privacy extensions, defined in RFC4941, do not use - MAC addresses. + types. In particular, privacy extensions, defined in RFC4941, do not use + MAC addresses. Also note that to extract successfully the address's u-bit must + be set to 1 and its g-bit must be set to 0 indicating that it is an interface + identifier per RFC 2373 section 2.5.1.