From: John Matus (john_matus@hotmail.com)
Date: Thu Jun 02 2005 - 01:28:28 GMT-3
yes, my config <for ease of discussion> was
address-fam ipv6
nei 1.1.1.1 activate
............................
but, like i mentioned. after the adj came up, i did a show running config
and there <magically> appeared a seemingly equal ipv6 statement of the kind:
nei 1.1.1.1 remote 100
address-family ipv6
nei 1.1.1.1 activate
nei 2001::x remote 100
i did not configure the statement "nei 2001::x remote 100". it just
appeared!!! why is that? am i missing something or should i go 4 my 10th
cup of coffee today :)
>From: "Scott Morris" <swm@emanon.com>
>Reply-To: <swm@emanon.com>
>To: "'John Matus'"
><john_matus@hotmail.com>,<ccie2be@nyc.rr.com>,<ccielab@groupstudy.com>
>Subject: RE: ipv6 for bgp
>Date: Wed, 1 Jun 2005 22:47:31 -0400
>
>Ok. So you gave yourself reachability there somehow. And presumably you
>had basic connectivity in order to reach that one peer. (neighbor with the
>ipv6 address)
>
>So that's the guy you're discussing IPv6 stuff with.
>
>Now, I haven't got a clue how the Brian's labs are setup, although I'm sure
>they're mentally abusive! :) Beyond that though, I would expect that you
>have the same BGP problems we have in IPv4. Since your peer is in your AS,
>what does that tell you? The next hop isn't going to change, so wherever
>they point you for reachable routes, you need to know how to get there...
>
>Your original post though showed your peer in ipv6 address family as
>1.1.1.1
>which is an IPv4 address. :)
>
>Scott
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>John
>Matus
>Sent: Wednesday, June 01, 2005 10:19 PM
>To: swm@emanon.com; ccie2be@nyc.rr.com; ccielab@groupstudy.com
>Subject: RE: ipv6 for bgp
>
>ok, but why- after i typed in the config below - did i then see the ipv6
>address in the running config, even tho i did not enter it??? it was as
>though there was some sort of ipv6 negotiation/discovery process involved
>in
>this.....
>(preface/post-face: this was an IE lab. i was configuring ipv6 to peer w/
>a backbone router of which i had no control over. the running config of my
>router had the ipv6 mapping as though i entered it manually doing:
>router bgp 100
>nei 1.2.3.5 remote 100
>address-fam ipv6
>nei xxxx.xxxx.xxxx.xxxx:: remote 100
>
> >From: "Scott Morris" <swm@emanon.com>
> >Reply-To: <swm@emanon.com>
> >To: "'John Matus'"
> ><john_matus@hotmail.com>,<ccie2be@nyc.rr.com>,<ccielab@groupstudy.com>
> >Subject: RE: ipv6 for bgp
> >Date: Wed, 1 Jun 2005 21:11:49 -0400
> >
> >But on the other hand, when you try to reach BGP across the network
> >will it work? When the next hop is seen as an IPv4 address, doesn't
> >that kinda mess things up?
> >
> >I can see it, I just can't get there! ;)
> >
> >-----Original Message-----
> >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> >John Matus
> >Sent: Wednesday, June 01, 2005 8:22 PM
> >To: swm@emanon.com; ccie2be@nyc.rr.com; ccielab@groupstudy.com
> >Subject: RE: ipv6 for bgp
> >
> >well scott,
> >if i was asked to peer 2 router with ipv6 bgp, would i have fulfilled
> >that task per my example below?
> >when i do a "sh bgp ipv6 nei sum" i do get a neighbor 1.1.1.1, and
>when
> >i
> >
> >check the running config i've got the ipv6 address added to my bgp
> >process.............
> >
> > >From: "Scott Morris" <swm@emanon.com>
> > >Reply-To: <swm@emanon.com>
> > >To: "'ccie2be'" <ccie2be@nyc.rr.com>,"'John Matus'"
> > ><john_matus@hotmail.com>,<ccielab@groupstudy.com>
> > >Subject: RE: ipv6 for bgp
> > >Date: Wed, 1 Jun 2005 20:04:18 -0400
> > >
> > >Not quite. An address family simply says "what are we going to talk
> > >about?"
> > >
> > >Don't confuse BGP with IP routing protocols. BGP is an application
> > >that discusses IP routes. By default it talks about IPv4 routes
> > >'cause that's what it was created for. However, it also discusses
> > >other things like VPNv4, Multicast and IPv6. The application is
> > >still the
> >application.
> > >
> > >So in your example there, you are peering two IPv4 devices with an
> > >IPv4 TCP application to talk about IPv6 routes. You may now know
> > >where these routes are but have nowhere to use them!
> > >
> > >It's kinda like you and I discussing some entertaining words in
>Japanese.
> > >While it may be very nice that we now know a few choice words, it's
> > >not like either of us has any place to actually use that knowledge
> > >(at least in my case!).
> > >
> > >HTH,
> > >
> > >Scott
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > >Of ccie2be
> > >Sent: Wednesday, June 01, 2005 6:35 PM
> > >To: 'John Matus'; ccielab@groupstudy.com
> > >Subject: RE: ipv6 for bgp
> > >
> > >What's the physical link over which BGP is trying to peer?
> > >
> > >It does make a difference.
> > >
> > >Tim
> > >
> > >-----Original Message-----
> > >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > >Of John Matus
> > >Sent: Wednesday, June 01, 2005 6:03 PM
> > >To: ccielab@groupstudy.com
> > >Subject: ipv6 for bgp
> > >
> > >just wondering if my observations were correct..........
> > >if you have a peer that runs both ipv4 and ipv6 and you do the
>following:
> > >
> > >router bgp 100
> > >neighbor 1.1.1.1 remote 100
> > >address-family ipv6
> > >neighbor 1.1.1.1 activate
> > >
> > >the result is that both ipv4 and ipv6 adjacencies come up.
> > >
> > >i checked the running config after and found the ipv6 address mapping
> > >in the
> > >
> > >config, but when i do a "show bgp ipv6 neighbor" it does not show the
> > >ipv6 address of the remote host, hence my question............
> > >
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This archive was generated by hypermail 2.1.4 : Wed Jul 06 2005 - 14:43:40 GMT-3