From: Kaiser Anwar (kaiseranwar@sbcglobal.net)
Date: Thu Sep 25 2003 - 03:44:36 GMT-3
Yes that's what I thought because when I looked at the solution it had
callin.that's what confused me.
Thanks for clarifying this.
Kaiser A
----- Original Message -----
From: "William Lijewski" <ccie8642@hotmail.com>
To: <kaiseranwar@sbcglobal.net>; <KWygand@customonline.com>;
<groupstudy@cconlinelabs.com>; <ccielab@groupstudy.com>
Sent: Thursday, September 25, 2003 1:41 AM
Subject: Re: isdn question
> That looks good to me. From what you stated in the question the provided
> answer you received is incorrect, it should be callout, not callin, just
> like you have configured.
>
> Try and think of it from the routers point of view. If you tell the
router
> 'ppp authentication chap callin' it means that it is only going to
> authenticate that type of call - calls into itself. If you tell the
router
> ' ppp authentication chap callout' it means that its only going to
> authenticate calls that it originates outbound.
>
> Bill Lijewski
> CCIE #8642
> Network Learning Inc
> 5 Day R&S CCIE Bootcamp Instructor
>
>
> >From: "Kaiser Anwar" <kaiseranwar@sbcglobal.net>
> >Reply-To: "Kaiser Anwar" <kaiseranwar@sbcglobal.net>
> >To: "Kenneth Wygand" <KWygand@customonline.com>,
> ><groupstudy@cconlinelabs.com>, <ccielab@groupstudy.com>
> >Subject: Re: isdn question
> >Date: Wed, 24 Sep 2003 22:30:03 -0500
> >
> >First of all I don't know why I takes so long for my email to show up.
> >anyway
> >I guess the solution I have is not right. I have ppp authentication chap
> >callout.it seems to be working.
> >so when r1 call r3 will not challenge any incoming call. this is the
debug
> >output.correct me if I am wrong
> >
> >12:02:23: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
> >12:02:23: BR0:1 PPP: Using dialer call direction
> >12:02:23: BR0:1 PPP: Treating connection as a callout
> >12:02:23: BR0:1 CHAP: O CHALLENGE id 6 len 23 from "r1"
> >12:02:23: BR0:1 CHAP: I RESPONSE id 6 len 23 from "r3"
> >12:02:23: BR0:1 CHAP: O SUCCESS id 6 len 4
> >12:02:23: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to
> >up.!!!!
> >Success rate is 80 percent (4/5), round-trip min/avg/max = 32/35/36 ms
> >
> >Thanks
> >Kaiser Anwar
> >----- Original Message -----
> >From: "Kenneth Wygand" <KWygand@customonline.com>
> >To: <groupstudy@cconlinelabs.com>; "Kaiser Anwar"
> ><kaiseranwar@sbcglobal.net>; <ccielab@groupstudy.com>
> >Sent: Wednesday, September 24, 2003 9:42 PM
> >Subject: RE: isdn question
> >
> >
> > > Tony,
> > >
> > > I agree that everything else in the question points to using "ppp
> >authentication chap callin". Kaiser probably just reversed the two
router
> >names.
> > >
> > > Ken
> > >
> > > -----Original Message-----
> > > From: Tony Schaffran [mailto:groupstudy@cconlinelabs.com]
> > > Sent: Wed 9/24/2003 10:35 PM
> > > To: Kenneth Wygand; 'Kaiser Anwar'; ccielab@groupstudy.com
> > > Cc:
> > > Subject: RE: isdn question
> > >
> > >
> > >
> > > I think you are correct.
> > >
> > > I read his question too fast.
> > >
> > > He is either not stating all of the requirements or he has stated it
> > > backwards. But I believe he is trying to get to callin.
> > >
> > > Thank you for pointing that out.
> > >
> > > Tony Schaffran
> > > Network Analyst
> > > CCIE #11071
> > > CCNP, CCNA, CCDA,
> > > NNCDS, NNCSS, CNE, MCSE
> > >
> > > www.cconlinelabs.com
> > > Your #1 choice for online Cisco rack rentals.
> > >
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> > > Kenneth Wygand
> > > Sent: Wednesday, September 24, 2003 7:23 PM
> > > To: Tony Schaffran; Kaiser Anwar; ccielab@groupstudy.com
> > > Subject: RE: isdn question
> > >
> > > Actually Tony, I disagree. "ppp authentication chap callin" should be
> >used
> > > on a router so that challenges are made only on INCOMING calls, not
> >outgoing
> > > calls.
> > >
> > > Now in Kaiser's question, he said "If R1 calls R3. R3 should not
> >challenge
> > > R1". Well if R1 is doing the calling, "ppp authentication chap
callin"
> > > configured on this router will cause R1 not to challenge R3, but R3
will
> > > challenge R1. If we put "ppp authentication chap callin" on R3, the
> >call
> > > would be considered incoming from R3's perspective and R3 WILL in fact
> > > challenge R1.
> > >
> > > Seems to me that R3 will always challenge R1 when R1 initiates the
call
> >to
> > > R3 no matter where "ppp authentication chap callin" is placed.
> > >
> > > Someone please correct me if I am wrong.
> > >
> > > Thanks,
> > > Ken
> > >
> > > -----Original Message-----
> > > From: Tony Schaffran [mailto:groupstudy@cconlinelabs.com]
> > > Sent: Wed 9/24/2003 10:08 PM
> > > To: 'Kaiser Anwar'; ccielab@groupstudy.com
> > > Cc:
> > > Subject: RE: isdn question
> > >
> > >
> > >
> > > Sorry about my previous post.
> > >
> > > I forgot the authentication in the "ppp authentication chap
> >callin"
> > > command.
> > >
> > > It looks like you already had the answer in one of your other
> >posts.
> > >
> > > Tony Schaffran
> > > Network Analyst
> > > CCIE #11071
> > > CCNP, CCNA, CCDA,
> > > NNCDS, NNCSS, CNE, MCSE
> > >
> > > www.cconlinelabs.com
> > > Your #1 choice for online Cisco rack rentals.
> > >
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> >Behalf
> > > Of
> > > Kaiser Anwar
> > > Sent: Wednesday, September 24, 2003 4:46 PM
> > > To: ccielab@groupstudy.com
> > > Cc: ccielab@groupstudy.com
> > > Subject: isdn question
> > >
> > > Hi,
> > > I am little confused here. this is what I am trying to
> >achiev.
> >I
> > > have R1
> > > connected to R3 with isdn.
> > > If R1 calls R3. R3 should not challenge R1. which command I
> >need
> > > to put
> > > and
> > > on which router.
> > >
> > > Thanks
> > > Kaiser A
> > >
> > > ***Get your CCIE and a FREE vacation: Shop.GroupStudy.com***
> > >
> > >
This archive was generated by hypermail 2.1.4 : Wed Oct 01 2003 - 07:24:36 GMT-3