Re: RFC2385 (MD5 signature in TCP packets) support

[Alan Cox]

> 	My interest for this is mostly for Zebra to be able to make secure BGP 
> connections, so I would also contribute a patch for Zebra to support this 
> feature on Linux.

For minimal versions of secure ?

    Since this memo was first issued (under a different title), the MD5
    algorithm has been found to be vulnerable to collision search attacks
    [Dobb], and is considered by some to be insufficiently strong for
    this type of application.

You'll also find that with SACK it doesn't fit in the tcp header..