I have created an ipsec vpn for the cisco vpn client application on an IOS 15.1 router. Most everything seems to be configured as it should, the clients can connect, authenticate and are assigned an IP address from the configured VPN pool.  However, ...

I'm trying to route between 2 VLANs using a C1760 with a WIC-4ESW installed.When I try to create a subinterface I get the following error:Router(config)#interface fastEthernet 0/2.1 ^% Invalid input detected at '^' marker.(It ...

I've just built some CCM 4.1(2) servers and plan on rebuilding the phone system from scratch to take advantage of the new features in 4.x, and also because the system is in a right mess at the moment.I understand "Cisco CallManager Fundamentals: A Ci...

We have a block of IP addresses and have assigned various internet-facing servers public addresses using the following (on a 1760):ip nat inside source static tcp i.i.i.i port e.e.e.e port extendableIncoming and outgoing mail works just fine until th...