[VPN] IPSEC Resources

[Jon Still]

Folks,

I'm looking for a good book on IPSEC - really just covering the 
protocols from the ground up, the various modes, transforms etc.  Is 
there any particular tome that you lot can recommend over any other?

Failing that, are there any good online resources - sadly a lot of the 
ones listed on the vpn.shmoo.com website are now dead links :-/

Note - I'm not especially looking for product-specific information here 
- just information on the protocol suite (preferably including some of 
the newer stuff like UDP encapsulation), but without having to trawl 
through the 000s of RFCs - yes, I admit it, I'm lazy :)

Cheers,
Jon.

-- 
Jon Still                               E-mail: jon at tertial.org
tertial.org                             Web:    http://www.tertial.org/
GPG Key: http://xanthein.net/key.asc    Key ID: 0x00493D2B