I'm setting up an ISDN bridged network in a hub and spoke configuration. In normal circumstances, only the spokes will be allowed to dial the hub. I've configured this with all the timeouts etc and works fine.
However, I would like to set up the hub so it can dial the spokes only for telnet traffic. I know that I will need an access list to do this, but how do I 'map' this access list to the 'dialer map bridge' command thus allowing telnet to dial but nothing else. I currently have
'dialer map bridge name <spoke name> broadcast'
without the spoke phone number to prevent it dialing.
Unfortunatly, the 'designers' of the networks I have to administer do not have the knowledge of how they work. They just tell us to do it, get it working, but don't come to us when it doesn't. All, of course, without any finacial cost.
Private IPs is not an option so we cannot route to the remote sites without great expense. Therefore I'm forced to use the spare addresses within the Hubs LAN. So bridging is the only option (unless anyone can think of another soloution).
I understand you frustration but this could be a good occastion to explain the customer why the "designers" made a poor job and things must be changed now.
You will find pleaty of documents on CCO to support you.
Also if you cannot do NAT but need to put some IPs taken from the LAN, remotely via ISDN, you can do that with routing and it will work nice. The router with ISDN will proxy-arp for the remote IP's once they are connected.
I still have a problem with this. I had a trial set up, using a 801 for the spoke and a 2522 for the hub. Link came up and passed traffic. The 2522 was then swapped for a 3620 with 8 port bri, and NM2FE2W loaded with WIC2Ts. The config from the 2522 was mirrored across to the 3620 with modifications for the change of hardware.
The link now comes up but does not pass traffic. Suggestions please.
Edited sho ver and sho run of the 2522 and 3620 are below. IP addresses have also been edited.
System image file is "flash:igs-i-l.110-13", booted via flash
cisco 2522 (68030) processor (revision M) with 2048K/2048K bytes of memory.
Processor board ID 12021904, with hardware revision 00000003
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...