Re: igrp default-network with DDR

From: Peng Li (lipeng@xxxxxxxxxx)
Date: Tue Aug 21 2001 - 00:42:21 GMT-3


   
Hi, Daniel,

Thanks a lot for your comments which is a great relief for me out of this situ
ation. Though it works badly , it works in a way according to your confirmation
.

By the way, I have two IPX headache . Hope you can spend a minute on that which
 is highly appreciated.

1. SAP1----R1---nlsp---R2---eigrp--R3---SAP2, I did mutural redistributio
n in R2, but can't get sap2 to r1 and sap 1 to r3. THose two saps shown in R2.
What's out there for the problem? THis is my weak point. Is there any kind of r
edistribution sap command(don't laugh, if this seems.....). I disabled all rip/
sap on R1/R2 link and disabled ipx rip/sap on R2/3.

2. For IPX DDR. today I tried on the same topo like I mentioned in IGRP proble
m. I tried RIP between R2/3. At R2, I tried #Ipx route 22(a net on R3) ffffffff
 (mask, really don't know How to do it, some times the router accepts, sometime
s not) dialer0 floating-static.

When I show run, there's no such route. For the other part R3, I don't have ide
a too.

I just saw a ISDN IPX snapshor case on Cisco website, it's understandable. But
I seems a stupid guy to IPX.

Is that possible that you can find out some config sample for IPX DDR like ,
Backup physical for RIP/Eigrp/NLsp, Floating for Rip/eigrp/nlsp for my study re
ference.

Thanks for your time.

Peng
----- Original Message -----
From: "Daniel C. Young" <danyoung99@mediaone.net>
To: "'Peng Li'" <lipeng@canada.com>; <"'=SMTP:young@pobox.com'"@lsmls01.we.medi
aone.net>; <"'=SMTP:"@lsmls01.we.mediaone.net>
Sent: Monday, August 20, 2001 10:33 PM
Subject: RE: igrp default-network with DDR

>
> Peng Li,
>
> IGPR does not understand the quad-zero network (what you call 0/0). The only
> option that IGRP has of defining a default network is to use the 'ip
> default-network' command. Without dialer watch or backup interface, I
> believe that your other option is to use snapshot routing (yet another
> terrible technology). The 7 minute delay is considered normal, since IGRP
> converges even slower than RIPv1. (terrible, terrible...)
>
> Personally, I do not feel that IGRP should be much of a concern for ISDN
> backup. Think about how much scenarios would you realistically have someone
> running IGRP over a WAN link. Also, since IGRP was originally designed to
> meet some of the limitations of RIPv1, it is largely antiquated. I would
> concentrate more on DDR for OSPF, IPX, and maybe EIGRP. Those are the more
> likely scenarios.
>
> Regards,
> Daniel
>
> -----Original Message-----
> From: Peng Li [mailto:lipeng@canada.com]
> Sent: Monday, August 20, 2001 6:02 PM
> To: young@pobox.com; ccielab@groupstudy.com
> Subject: Re: igrp default-network with DDR
>
>
> Hi,Daniel,
> The attached is the config with some non-necessary parts deleted. Today, I
> tried to use no passiv-dialer0 and attempted to use the tempory dynamic
> routes for returning packets . I realized that it works only with sacrifice
> of waiting up at least for 7mins for IGRP routes via ATM gone, a little bit
> terrible. Any suggestions except of Dialerwatch and physical BAckup for IGRP
> situation. For Rip, Eigrp, Ospf, we can easily user 0/0 (if allowed in lab)
> and redistribute to the R3/4 network for returning pkts to be routed
> correctly to Dialer0 without any dynamic RT. How to do with IGRP.?
>
> **********floating problem with IGRP, how to make a default
> route????????*******
>
> hostname r2
> username r3 password 0 cisco
> isdn switch-type basic-ni
> interface ATM1/0
> ip address 123.4.32.3 255.255.255.0
> ip ospf network point-to-point
> shutdown
> no atm ilmi-keepalive
> pvc 10/20
> protocol ip 123.4.32.2 broadcast
> encapsulation aal5snap
> interface BRI2/0
> no ip address
> encapsulation ppp
> dialer pool-member 1
> isdn switch-type basic-ni
> isdn spid1 416364097400 3640974
> isdn spid2 416364045000 3640450
> interface Dialer0
> ip address 123.4.23.3 255.255.255.0
> encapsulation ppp
> dialer pool 1
> dialer remote-name r3
> dialer string 3647481
> dialer string 3648554
> dialer-group 1
> ppp pap sent-username r2 password 7 045802150C2E
> !
> router igrp 1
> redistribute static metric 10000 8000 255 1 1500
> passive-interface Dialer0
> network 123.0.0.0
> ip route 200.4.10.0 255.255.255.0 Dialer0 200
> ip http server
> access-list 101 deny igrp any any
> access-list 101 permit ip any any
> dialer-list 1 protocol ip list 101
> ---------------------------
>
> hostname r3
> username r2password 0 cisco
> isdn switch-type basic-ni
> interface ATM1/0
> ip address 123.4.32.2 255.255.255.0
> atm clock INTERNAL
> no atm ilmi-keepalive
> pvc 10/20
> protocol ip 123.4.32.3 broadcast
> encapsulation aal5snap
> interface BRI2/0
> no ip address
> encapsulation ppp
> dialer pool-member 1
> isdn switch-type basic-ni
> isdn spid1 416364748100 3647481
> isdn spid2 416364855400 3648554
> interface Dialer0
> ip address 123.4.23.2 255.255.255.0
> encapsulation ppp
> dialer pool 1
> dialer remote-name r2
> dialer string 3640974
> dialer string 3640450
> dialer-group 1
> ppp authentication pap
> !
> router igrp 1
> redistribute static metric 10000 100 255 1 1500
> passive-interface Dialer0
> network 123.0.0.0
> network 190.4.0.0
> distribute-list 10 out ATM1/0
> distribute-list 10 in
> ip classless
> ip default-network 123.0.0.0
> ip route 123.0.0.0 255.0.0.0 Dialer0
> access-list 10 deny 0.0.0.0
> access-list 10 permit any
> access-list 101 deny igrp any any
> access-list 101 permit ip any any
> dialer-list 1 protocol ip list 101
>
> ----- Original Message -----
> From: "Daniel C. Young" <danyoung99@mediaone.net>
> To: "'Peng Li'" <lipeng@canada.com>
> Sent: Monday, August 20, 2001 1:00 AM
> Subject: RE: igrp default-network with DDR
> >
> > If R2 must initiate the call, then the line will not come up until R1 or
> R2
> > has traffic to send to the other side. But return traffic should not have
> a
> > problem finding its way back unless your DDR is misconfigured, such as not
> > having a remote name, etc.
> >
> > Could you please post the configs, debug outputs, etc.?
> >
> > Regards,
> > Daniel
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Peng Li
> > Sent: Sunday, 19 August 2001 11:58 AM
> > To: ccielab@groupstudy.com
> > Subject: igrp default-network with DDR
> >
> >
> > one DDR issue.
> >
> > R1-------R2------------R3--------R4
> > \ /
> > \ isdn /
> >
> > Just u r asked to back a network 139.4.x.0 (or 200.4.x.0)on R4 and R2
> should
> > initiate the call.
> > all these routers use IGRP. for r1 and r2, the Static floating part is ok.
> > But for R3 and R4, how do you config so that r3 and r4 will successfully
> > return the packet from r2/r1 part?
> > I tried 0/0, redistribute static, some kind of ipdefault-network, seems
> no
> > joy.
> >
> > Any one can help out there?
> > **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html



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