Dan McDonald writes: > On Mon, Oct 29, 2007 at 11:45:26AM -0500, Mark Thacker wrote: > <SNIP!> > > BTW : Have I told anyone that I still think we need a PPTP and an L2TP > > over IPsec in Solaris if we want to address VPN server requirements ? > > If PPTP/L2TP (L2TP is a descendent of PPTP, if memory serves...)
Sort of. L2TP was the merge of Cisco's L2F and Microsoft's PPTP. It borrows some of the features of each, but there are noteworthy differences between them. Darren Reed writes: > I'd like to see L2TP in OpenSolaris provide a GLDv3 driver. > > I'm also interested to see if the L2TP driver, along with the > tun driver, could implement an "IP" MAC type where the > MAC addresses are actually IP addresses. L2TP, if it existed in Solaris, would be something a bit different from what we have now. I'm unsure how it'd fit into GLDv3, but I think it'd probably require some work if we were to force it in. Yes, the MAC layer addressing includes IP addresses, but it also includes Tunnel ID and Session ID numbers. See RFC 2661. The layer above isn't like Ethernet. It doesn't have its own addressing. Instead, it behaves as a point-to-point tunnel for compatible layer 2 protocols, such as PPP. PPP in turn offers the interface that IP uses -- running IP directly over L2TP doesn't make sense. -- James Carlson, Solaris Networking <james.d.carlson at sun.com> Sun Microsystems / 35 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677
