From: Xu, James (james.xu@xxxxxxx)
Date: Thu Aug 02 2001 - 20:02:47 GMT-3
I have similar experience with that of Roberto's. After I have configured
the authentication in both side, the problem gone.
In my test, I used "pap" authentication. However, I do have a question about
pap authentication. According to cisco's documentation, only the caller
needs have "ppp pap sent-username xxx" configured. In my test, I must
configure this statement in the called party too to make it work. Can anyone
offer some insights?
James Xu
EDS Network Infrastructure Support
-----Original Message-----
From: SALMON, MARK (SBMS) [mailto:MARK.SALMON@cingular.com]
Sent: Wednesday, August 01, 2001 10:03 PM
To: ccielab@groupstudy.com
Subject: RE: ISDN encapsulation Failed
I had the same problem today with the Teltone simulator. I checked caller
ID on the simulator and I was able to ping the remote router OK. I am only
seeing enc fail on interfaces that have the other side in the down state.
Not on the Bri ports at all
Mark Salmon
Sr. WAN Engineer Great Lakes Region
Cingular Wireless
2000 Ameritech Center Drive 3F07B
Hoffman Estates IL 60195
Voice: (847)765-3999
Pager: (847)992-0458
Email: mark.salmon@cingular.com
-----Original Message-----
From: afiddler [mailto:afiddler@wi.rr.com]
Sent: Wednesday, August 01, 2001 5:06 PM
To: ccielab@groupstudy.com
Subject: Re: ISDN encapsulation Failed
My experience has been that v12.0 and higher have tighter security on ISDN
dialup, but in some inconsistent ways.
In particular, with v12.0 I found that using dialer-maps requires ppp
authentication, but using dialer profiles with a dialer string does not
require ppp authentication. Robert, if you do not want to authenticate with
ppp, try using dialer profiles and a dialer string on the calling router.
----- Original Message -----
From: "Roberto Omori" <roberto.omori@bol.com.br>
To: <adiment@uswest.com>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, August 01, 2001 2:18 PM
Subject: Re: ISDN encapsulation Failed
> This is the basic configuration. Only R2 should dial and there is no
> authentication :
>
> R1
>
> Int bri 0
> encap ppp
> ip address 10.0.0.1 255.0.0.0
> dialer-group 1
> dialer map ip 10.0.0.2 name r2 broadcast <5552002> --------->omited
> no cdp enable
>
> dialer-list 1 protocol ip permit
>
> R2
>
> Int bri 0
> encap ppp
> ip address 10.0.0.2 255.0.0.0
> dialer-group 1
> dialer map ip 10.0.0.1 name r1 broadcast 5552001
> no cdp enable
>
> dialer-list 1 protocol ip permit
>
>
> ----- Original Message -----
> From: <adiment@uswest.com>
> To: <roberto.omori@bol.com.br>; <ccielab@groupstudy.com>
> Sent: Wednesday, August 01, 2001 3:45 PM
> Subject: RE: ISDN encapsulation Failed
>
>
> > Acesso pelo menor prego do mercado! R$ 14,90 nos 3 primeiros meses!
> > ASSINE AGORA! http://www.bol.com.br/acessobol/
> >
> >
> >
> > I would guess you are not using authentication. This same problem has
> > happened to me. I found out in the CCIE power session at networkers
that
> > the routers still need to resolve where to send the packets in the
> > dialer-map statement. Either using a dial string or authentication. If
> one
> > side does not have a dial string you need authentication to resolve it.
> >
> > -----Original Message-----
> > From: Roberto Omori [mailto:roberto.omori@bol.com.br]
> > Sent: Wednesday, August 01, 2001 1:24 PM
> > To: ccielab@groupstudy.com
> > Subject: ISDN encapsulation Failed
> >
> >
> > Hi all,
> >
> > To allow only one side to make the call the basic idea is omit the dial
> > string
> > isnt it? Well, I have experienced the following problem:
> >
> > 1-If I config. the strings on both sides I can ping both routers.
> >
> > 2-If I config. only one side, it dials, the connection is established
but
> I
> > cannot ping the remote router.
> >
> > Debugging ip packets, it presents an "encapsulation failed" message.
> >
> > Has anyone experienced this problem?
> > **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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