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2800 Multilink Problem

Unanswered Question
Nov 30th, 2006
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Hello,


We 've got a dial problem with a 2811 branch router (ISDN2) and a 7206 central router (2*ISDN30)


Wehn the 2800 dials in no problem.

When threshold comes up no problem.

But when the second B-channel closed the 2800 doesn't route trafic any more.

Routing protocols still work.

Extended ping from the routers FE interface to de central location form.

But a device connected to the FE interface cannot ping the remote site.

When i use IOS

c2800nm-advsecurityk9-mz.124-10.bin : FAILTY

c2800nm-advsecurityk9-mz.124-12.bin : FAILTY

c2800nm-advsecurityk9-mz.124-5.bin : OKE

c2800nm-advsecurityk9-mz.124-8a.bin : OKE


Branch router:

interface BRI0/2/0

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

isdn tei-negotiation first-call

isdn point-to-point-setup

ppp authentication chap

end


interface Dialer10

ip address 1.1.1.1 255.255.255.252

ip pim sparse-dense-mode

encapsulation ppp

dialer pool 1

dialer string 0123456789

dialer load-threshold 75 either

dialer max-call 2

dialer-group 1

no cdp enable

ppp authentication chap callin

ppp chap hostname somerouter

ppp chap password <REMOVED>

ppp multilink

end


Central router:

interface Dialer1

description ISDN:

bandwidth 128

ip address 1.1.1.2 255.255.255.252

ip pim sparse-dense-mode

encapsulation ppp

ip summary-address eigrp 1 0.0.0.0 0.0.0.0 180

dialer pool 1

dialer remote-name someroute

dialer idle-timeout 180

dialer-group 1

no fair-queue

no cdp enable

ppp authentication chap

ppp multilink

end


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spremkumar Fri, 12/01/2006 - 01:55
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  • Red, 2250 points or more

Hi


Have you checked up the routes for the remote destinations when the second channel is down ?


Can you check whether you are getting any routes available through the live BRI Channel available when the other one goes down ?


Also can you verify whether the channel is stil active using show isdn active command ?


regds


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