On Mon, 8 Dec 2008 17:29:16 -0500, Jason Dixon wrote: >On Tue, Dec 09, 2008 at 09:16:29AM +1100, Rod Whitworth wrote: >> On Mon, 8 Dec 2008 16:40:56 -0500, Jason Dixon wrote: >> >> >I don't know how to answer your question because the network art above >> >is unreadable. gre(4) will allow you to route networks across a tunnel. >> >Think of it as IPSec without the Sec. It will allow networks that are >> >usually non-routable (rfc1918) to route to each other. It will also >> >allow you to extend segments of your public networks elsewhere. >> > >> >> Let's go super simple. >> Existing setup: >> ISP#1------A------ISP#2 >> A has a /30 on each side >> A has a /29 routed to it from ISP#1 >> >> Desired setup: >> ISP#1--A--ISP#2---------MyISP---B >> ALL traffic to A via ISP#1 is to go to B >> ALL replies to return via A >> B will handle A's /29 >> A should just be a "lump in the pipe" >> Translation of addresses en route is fine as long as connections from >> the cloud intended for A get to B and responses get back looking like >> the real thing. >> >> Possible? > >If I understand your description, yes.
So I setup a gre tunnel a la the manpage example. But how does the traffic coming from ISP#1 get to be treated properly at B? And replied to without the sender seeing that it's from a foreign destination? And will the /29 arrive at B ready to route to local hosts? I know I only had 4 hours sleep last night and I've now been up for nearly 8 hours so I'm starting to wilt, but I don't see clues on that in the gre manpage. I'm not surprised. This is one of those once-in-a-lifetime things I think. I was thinking relayd but it doesn't look like it does the whole range of ports (and protocols?)..... for any one address. Maybe I'm really too foggy. Thanx, > >-- >Jason Dixon >DixonGroup Consulting >http://www.dixongroup.net/ > *** NOTE *** Please DO NOT CC me. I <am> subscribed to the list. Mail to the sender address that does not originate at the list server is tarpitted. The reply-to: address is provided for those who feel compelled to reply off list. Thankyou. Rod/ /earth: write failed, file system is full cp: /earth/creatures: No space left on device
