Re: fun with nat

From: John Conzone (jkconzone@xxxxxxxx)
Date: Tue Sep 12 2000 - 19:06:29 GMT-3


   
       I will try it again tommorw and copy the configs.
       Basically here's my setup. I have three routers in a frame cloud,
   R1 R2 and R3 sharing 10.x.x.x. and running ospf fine. I enable nat on
   the serial interface on R3 to translate to 64.x.x.x.
       I make that interface the outside, and the ethernet the inside. My
   ospf adj goes away , and when I debug IP ospf packet on R!, I see the
   hellos being sourced by the nat address from R3, and the local router
   rejecting them because they don't shre the same network
   
   ----- Original Message -----
   
   From: Geatti
   
   To: John Conzone ; ccielab
   
   Sent: Monday, September 11, 2000 10:51 PM
   
   Subject: RE: fun with nat
   
   Please post your configs, I have used nat with ospf before and had no
   problems. There are some issues with DLSW and NAT but it will work.
   
   -----Original Message-----
   From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
   John Conzone
   Sent: Monday, September 11, 2000 7:08 PM
   To: ccielab
   Subject: fun with nat
   
       I've been playing with nat in my test lab, and have found that it
   wreaks havoc with ospf. I haven't tried any of the DV protocols yet.
   
       Has anyone tried?
   
       My plan was to do DLSW through NAT but I can't apply NAT, at least
   with OSPF.
   
       How do you guys do DLSW through NAT? I mean, how do you "route" to
   the routers running NAT?
   
       Static's, RIP,etc.? How about tunnels. I know from real life that
   PPTP and L2TP won't run through PAT, which is actually what I'm doing.
   OSPF won't set up adj at all because the hellos are sourced form a
   network that is not local to the net. (the NAT address). I imaginef
   EIGRP will have the same problem.
   
       I guess what I am asking is where and how do you place NAT in your
   nets to test how various scenarios work?
   
       Thanks!
   
   



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