Janos,
On Tue, 28 Sep 2010, Venkatesh Sriram wrote:
While I have used MD5 with OSPFv2, I never used authentication with OSPFv3 since IPsec is (a) not available on all platforms (or/and requires a special license) and (b) requires too much of coordination with other folks to bring it up. I know operators who use authentication with ISIS for v6, but very little auth for OSPFv3.Obviously, you'll find an equal number that enthusiastically use auth with OSPFv3, so really there isnt any one right answer.
Dear Sriram, Can you list/name the platforms does not support IPsec for OSPFv3 without special license? e.g. to avoid such a platform.... Best Regards, Janos
Some platforms of Cisco for one. http://mellowd.co.uk/ccie/?p=1421 Sriram