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isdns and pings

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peterd51

Technical User
Feb 22, 2005
109
GB
Hi Guys,

following on with isdn stuff...

all sites have ACL's that block anything from their own ip address, ie,

interface loopback 1
ip address 172.16.1.1 255.255.255.255

access-list 150
deny ospf any any
deny ip host 172.16.1.1 any
permit ip any any

with the remote sites dialer 1 config having 'dialer-group 1' with 'dialer-list 1 protocol ip list 150'.

So I'm trying to do simple ping tests using the isdn just as the site routers see it, ie, through dialer 1, getting the callback, and ping-responses.

But it doesn't work.

I've tried an 'interface loopback 4.4.4.4 255.255.255.255' on the main router, with 'ip route 4.4.4.4 dialer 1' at the remote...this brings up the isdn but I get no response.

Am I right in thinking that the problem is in the routers blocking anything from their own source address?

Any ideas welcome.

Regards
Peter
 
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