Other Network Architecture Subjects

My costumer has a Cisco 3640 at the headquarters which is connected to four remote sites using 2 Mbit/s links by using a NM-4T serial interface card. He needs to connect to 6 more remote sites using 2 Mbit/s links, too, so he wants to buy two more NM...

We will be migrating from isdn microlink to onramp soon. I just want to ensure that our AS5300 will work after the migration. The switch-type setting isdn switch-type primary-net5should work for onramp correct? Is there any issues that we should b...

My company has been asked to get a 827 router and a PIX 506 for a VPN solution. These are what they are using at the far end, but with DSL.I do not think the 827 can be used with a T1, which is what the client is getting installed at this end. I th...

I am trying to configure dialer profiles to allow incoming calls to use unique local CHAP names per profile. The problem is that the Cisco router sends the hostname as the local CHAP when the call first connects, this causes the remote site to fail ...

Will the Cisco 1750 support the VWIC-2MFT-T1 module? It looks like it will support the WIC-2T. I am running 12.0(7)T and will upgrade IOS if needed.

We've got a number of home users who have Macs.Dialling in via modem (with Mac ARA set to protocol ARAP) they can connect fine and see all the zones + IP etc..The users with ISDN cannot connect using ARA at all.I've tried implementing ATCP instead as...

I have a 2600 router with ISDN PRI and 1 serial Interface. Approx. 150 Clients are connecting to the PRI. In case of a serial link failure there should be ISDN-Backup (2 B-Channels) over the same PRI the Clients are connecting to.Is there a possibili...

How is the Routing Performance Mb/s(Fast-Ethernet to Token Ring) on the 2612 and 36xx series Router.In which Switching Mode does the Routerswork when they Routing Ethernet-Token Ring or SRB, SRTB.

I wan't to configure an VWIC-2MFT-E1 installed on an NM-2W for ISDN PRIDialup Data connections.But there's no posibility to configurethe "tdm clock..", and the "pri-group timeslots.." command.What must I configure to use the moduleas ISDN PRI connect...

What are reasons why vlan1 should not be used on Cisco switches and routers?

The router is in a remote location. There is a USR (56K) modem attached to the auxilliary port. I would like to issue some AT commands to the USR modem. Is there a way I can telnet to the remote router then attach to the USR modem so that I can issue...

A security information officer is doing port scans on our network. Various models of routers keep showing port 2001 open. I need an explanation of what this port is used for and its use for potential security hacks.

I have a problem assigning default gateway to the client who connect to my router.Now I have a router 3640 with Cisco IOS 12.2. An ACS 3.0 to which I authenticate.How could I define a default gateway to the clients?And how I could define a domain nam...

I have 2 x 2611 with 4 port ISDN modules.I wish to use them to connect two sites using 2 x ISDN-2 lines and keep the call charges at one site by using the dialer callback feature. Site A will be with callback and site B without callback. It is intend...

Users are dialing in to a 3600 and get a dynamic IP from a pool. DNS info is hard coded at each client and needs to stay that way. A client hard coded their host IP address as the DNS address by mistake and DNS was down during their session. Not ...