From: Bill Dicks (wdicks@xxxxxxxxxxxxxxxxxx)
Date: Fri Jul 21 2000 - 15:51:11 GMT-3
If you filter the Hellos, then how will the two routers become neighbors
unless the line is already up? If they don't become neighbors, how will
routing occur and routes be exchanged?
I see you have the floating static, so if your link to the WAN goes down,
this will be the only route. BUT, since you are filtering eigrp, you will
never become neighbors with the other router on the other side of the ISDN
link and no routes will be exchanged. If you're going to use a floating
static, use 0.0.0.0 so that all traffic goes that way (assuming of course
that you have a normal 0.0.0.0 route when the WAN link is up). But without
Hellos, no neighbor and no routes.
Bill
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Wojtek Iwanczyk
Sent: Friday, July 21, 2000 1:08 PM
To: aub95@emirates.net.ae; ccielab@groupstudy.com
Subject: Re: EIGRP over ISDN
Here is a sample config of DDR using EIGRP ... Filter eigrp "helo s" with
the dialer list referencing an extended ip access list ...
interface Dialer0
description ISDN Dial-up to NY-PRI-BRI-Router
ip unnumbered Loopback0
no ip directed-broadcast
ip nat outside
encapsulation ppp
bandwidth 2
delay 6000
dialer remote-name Router1
dialer idle-timeout 90
dialer string xxxxxxxxxxxxxx
dialer string xxxxxxxxxxxxxx
dialer pool 1
dialer-group 1
pulse-time 0
ppp authentication chap callin
ppp chap hostname xxxxx
ppp chap password xxxxx
router eigrp 1
network 172.31.0.0
no auto-summary
ip route 172.31.0.0 255.255.0.0 Dialer0 240
access-list 160 deny udp any any eq snmp
access-list 160 deny eigrp any any
access-list 160 permit ip any any
dialer-list 1 protocol ip list 160
Wojtek Iwanczyk
Sr Support Engineer
Exenet Technologies
15 E 26th Street
New York, NY 10010
(212) 684 7300
wiwanczyk@exenet.com
>>> Walid Fahme <aub95@emirates.net.ae> 07/21/00 01:14PM >>>
Question:
To limit Distance Vector Protocol updates on a dialup link (ISDN) we
have several options (Snapshot, Watch-Group)
To limit Link State OSPF updates ==> "ip ospf demand"
What about EIGRP, any solution ???
(Also, is there anything for IS-IS, NLSP and others ????)
Appreciate your comments.
Walid Fahme.
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:23:56 GMT-3