In article [ref] (at Wed, 14 Nov 2007 22:44:17 -0800), "Templin, Fred L" [off-list ref] says:

From: Fred L. Templin <redacted>

This patch includes support for the Intra-Site Automatic Tunnel
Addressing Protocol (ISATAP) per RFC4214. It uses the SIT
module, and is configured using extensions to the "iproute2"
utility.

The following diffs are specific to the Linux 2.6.24-rc2 kernel
distribution. This message includes the full and patchable diff text;
please use this version to apply patches.

Signed-off-by: Fred L. Templin <redacted>

BTW, how will we handle DNS name (and TTL) and/or multiple PRL entries 
in RFC4214?

I'm doubting if we really need to handle PRL refresh in kernel.

--yoshfuji