From: Joseph Saad (joseph.samir.saad@gmail.com)
Date: Sat Sep 08 2007 - 00:13:27 ART
Yes, I tried it.
The only issue with HDLC (which ppp does automatically) is that it doesn't
install a route to the neighboring router's interface.
From a lab perspective, I fixed that with a static route, which wouldn't be
acceptable in general in the exam.
ppp does this automatically by installing a connnected route as part of ppp
negotiation.
Joseph
On 9/8/07, Shine Joseph <shinepjoseph@iprimus.com.au> wrote:
>
> Joseph,
>
> Have you tried that solution? I couldn't get the loopback solution on to
> the
> hdlc link. It works on a ppp link.
>
> Regards,
> Shine
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Joseph Saad
> Sent: Saturday, 8 September 2007 7:53 AM
> To: Shine Joseph
> Cc: Bit Gossip; ccielab@groupstudy.com
> Subject: Re: serial back-to-back with dialer interface
>
> Why not assign the IP to a loopback xx interface and use ip unnumbered
> lo xxon the serial interafce?
>
> On 9/7/07, Shine Joseph <shinepjoseph@iprimus.com.au> wrote:
> >
> > Bit,
> >
> > I got your config working. If I don't add the dialer persistent command
> in
> > the dialer interface, the interface is flapping.
> >
> >
> > R1#
> > interface Serial0/1
> > no ip address
> > dialer in-band
> > dialer pool-member 1
> > dialer-group 1
> > no dce-terminal-timing-enable
> > pulse-time 1
> >
> > interface Dialer1
> > ip address 172.16.31.1 255.255.255.0
> > dialer pool 1
> > dialer-group 1
> > dialer persistent
> >
> > R3#
> > interface Serial1/0
> > no ip address
> > dialer in-band
> > dialer pool-member 1
> > dialer-group 1
> > clock rate 64000
> > no dce-terminal-timing-enable
> > pulse-time 1
> > interface Dialer1
> > ip address 172.16.31.3 255.255.255.0
> > dialer pool 1
> > dialer-group 1
> > dialer persistent
> >
> > R3(config-if)#do ping 172.16.31.1
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 172.16.31.1, timeout is 2 seconds:
> > !!!!!
> > Success rate is 100 percent (5/5), round-trip min/avg/max = 28/35/60 ms
> >
> > R1(config-if)#do ping 172.16.31.3
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 172.16.31.3, timeout is 2 seconds:
> > !!!!!
> > Success rate is 100 percent (5/5), round-trip min/avg/max = 28/33/52 ms
> >
> > HTH,
> > Shine
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > Bit
> > Gossip
> > Sent: Friday, 7 September 2007 9:04 PM
> > To: ccielab@groupstudy.com
> > Subject: serial back-to-back with dialer interface
> >
> > Experts,
> > I think this could be possible somehow but I've become quite rusty with
> > DDR
> >
> > R4 and R5 are connected back-to-back with HDLC encapsulation
> >
> > That would be nice and easy, but I am not allowed to assign the IP
> address
> > directly to the serial interface nor change interface encapsulation.
> >
> > I was thinking to associate them with a dialer interface and this is as
> > far
> > as
> > I could go ....
> >
> > Please help!
> > Bit
> >
> >
> > R5
> > interface Serial0/1
> > no ip address
> > dialer in-band
> > dialer pool-member 1
> > clock rate 128000
> > pulse-time 1
> > !
> > interface Dialer1
> > ip address 145.3.45.5 255.255.255.0
> > dialer pool 1
> > dialer-group 1
> > !
> > dialer-list 1 protocol ip permit
> > !
> >
> > R5#ping 145.3.45.4
> >
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 145.3.45.4, timeout is 2 seconds:
> >
> > *Mar 1 03:17:21.607: Di1 DDR: Cannot place call, no dialer string set.
> >
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