RE: Creating Tunnel Interfaces

From: John Smith (c00per_omers1@yahoo.com)
Date: Tue Jul 15 2003 - 17:17:34 GMT-3


I think the most important thing is to be able to ping the source and
destination tunnel addresses. If they aren't ping able then the tunnel
won't be built, and of course the address the " int tun #" on each side
must share the same subnet...
 
So this means that if R6 is in area 0 and between R6 and R2 is area 2 and
R2 is in another area 0. what are u trying to do? get both area 0 to
talk? Then each source or destination (whether they are loopback, serial
or ether need to be pingable) where do you put your loopbacks, well try
it in area 26 are they pingable, is area 26 being advertised. In R6 to
R2, as a what IA or O route, will the O route pass this ABR / ASBR, will
the IA route pass the ABR / ASBR. What about if R6 loopback is in area 0
( of R6 ), can R2 ping the loopback before the tunnel is up?

wing_lam@jossynergy.com wrote:
      Hi all,

      If I use loopback in one end, am I need to set the
      destination IP address
      in the tunnel peer end router to be this loopback IP address?
      or I can set
      to another interface?

      For the same example, if r1 use loopback as tunnel source, is
      it true that
      r3 should set the destination to be r1's loopback? can it be
      r1's serial
      interface?

      Thx,
      BBD (Big Black Dog)

      "Charles Church"
      , ,
      om> ,
      Sent by: cc:
      nobody@groupstudy Subject: RE: Creating Tunnel Interfaces
      .com

      07/15/2003 02:02
      AM
      Please respond to
      "Charles Church"

      In fact if you've got redundant paths between the two
      routers, it's
      preferred to use the loopbacks.

      Chuck Church
      CCIE #8776, MCNE, MCSE
      Wam!Net Government Services
      13665 Dulles Technology Dr. Ste 250
      Herndon, VA 20171
      Office: 703-480-2569
      Cell: 703-819-3495
      cchurch@wamnet.com
      PGP key:
      http://pgp.mit.edu:11371/pks/lookup?search=chuck+church&op=index

      -----Original Message-----
      From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On
      Behalf Of
      Alvarez, Rolando [NCSUS]
      Sent: Monday, July 14, 2003 1:39 PM
      To: 'boby2kusa@hotmail.com'; polarccie@yahoo.co.uk;
      ccielab@groupstudy.com
      Subject: RE: Creating Tunnel Interfaces

      ">>> The source ip address should be the ip address of the
      outgoing
      interface
>>>to the destination. The destination ip address should the
      ip address of
      the
>>>destination interface. If not, the tunnel will not work."

      Not necessarily. You can use loopback addresses.

      RA

      -----Original Message-----
      From: boby2kusa@hotmail.com [mailto:boby2kusa@hotmail.com]
      Sent: Monday, July 14, 2003 1:38 PM
      To: polarccie@yahoo.co.uk; ccielab@groupstudy.com
      Subject: Re: Creating Tunnel Interfaces

      what is the best-way of setting Tunnel addresses..?
>>>hmm, not sure what you mena by this but the tunnel address
      is an ip
      address that should be in a different subnet than what you
      already have
      configured in the router with the tunnel interface.

      source-destination addresses and the ip address of the
      interface itself.
>>> The source ip address should be the ip address of the
      outgoing
      interface
      to the destination. The destination ip address should the ip
      address of
      the
      destination interface. If not, the tunnel will not work.

      ----- Original Message -----
      From:
      To:
      Sent: Monday, July 14, 2003 9:59 AM
      Subject: Creating Tunnel Interfaces

> Hello Group...
> what is the best-way of setting Tunnel addresses..?
> source-destination addresses and the ip address of the
      interface itself.
> how to set the tunnel ip address?
> do we need to grab an unused subnet from the allowed range
      for a Tunnel?
>
> Best Regards..
>
>
>
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