Re: DIALUP CONNECTIVITY WITH mpls

Evening Jack.

This might be a bit off topic to what you are trying to accomplish, however
your question made me think of PPP over FR. It has been a while since I was
a dialer guru ..., job security back then was being the only guy who knew
ISDN well. ;-)

I suppose I could put some dialer info on here ... just have to reach back
into my lil brain and remember these configs.

As for PPP over FR (more relevant to our efforts), if you configure this and
use IP unnumbered, then the directly connected neighbors will be on
different subnets.

Please note, I am not fully answering your initial posting (hope this is
fine w/ you) ... just wanted to show / lab test your question related to
routing and different subnets.

Here is a running config I just put together.

In my quick lab I just ran OSPF, and OSPF is fine with it ... and you can
also send default routes to the CE. Here are the configs. Hub router = R1
and Spoke router = R2.

~~~~~~~~~~~~~~~~~~~~~~~~~~~

interface Loopback0
 ip address 1.1.1.1 255.255.255.255
!
interface Serial0/1/0.1 multipoint
 descr Connects to rest of network
 ip address 10.1.13.1 255.255.255.0
 ip ospf network point-to-multi
 frame-relay map ip 10.1.13.3 103 bro
!
interface Serial0/1/0.2 point-to-point
 descr connected to CE - spoke router
 frame-relay interface-dlci 102 ppp Virtual-Template1
!
interface Virtual-Template1
 ip unnumbered Loopback0
!
router ospf 1
 log-adjacency-changes
 network 1.1.1.1 0.0.0.0 area 0
 network 10.1.13.1 0.0.0.0 area 0
!
~~~~~~~~~~~~~~~~~~~~~~~~~~~

R2 Configs:

interface Loopback0
 ip address 2.2.2.2 255.255.255.255

interface Serial0/0/0.2 point-to-point
 frame-relay interface-dlci 201 ppp Virtual-Template1
!
interface Virtual-Template1
 ip unnumbered Loopback0
!
router ospf 1
 log-adjacency-changes
 redistribute static
 network 2.2.2.2 0.0.0.0 area 0

HTH,

Andrew Lee Lissitz

On Sun, Nov 15, 2009 at 1:56 AM, jack daniels <jckdaniels12_at_gmail.com>wrote:

> I'm getting confused here that there are two interfaces ethernet (LAN) and
> dialer interface (WAN).
> but the
>
> 1)wan dialer interface ip address will be recieved from where
> but dialer interface on CE will get ip from where ( ip address negotiated)
>
> or
> 2) if I put dialer interface ip address 2.2.2.2/32
>
> PE virtual access interface ip address 1.1.1.1/32
> NOW PE and CE are out of subnet , how will they communicate ?
>
>
> Regards
>
>
> On Sun, Nov 15, 2009 at 10:45 AM, Radioactive Frog <pbhatkoti_at_gmail.com
> >wrote:
>
> > Use DHCP server to allocate the IP address. rather than pool in LNS.
> >
> > On Sun, Nov 15, 2009 at 7:09 AM, jack daniels <jckdaniels12_at_gmail.com
> >wrote:
> >
> >> Hi GROUP,
> >>
> >>
> >> When a user connects to LNS and a virtual acess ip address details are
> >> taken
> >> fom RADIUS server after authentication....
> >>
> >> lets says it gets ip address 1.1.1.1/32
> >>
> >> BUT PE router has been configued to give the ip adress to CE
> >> 192.168.2.0/24...... How will CE communicate as its default gateway (
> >> virtual acess interface ) is out of subnet.
> >>
> >>
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-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net