I have a border router (3640), connected directly to Internet and internally to a small LAN, which is doing NAT and IPSec. No public services are inside. Beside IOS firewall, how can I build an ACL, to allow crypto traffic and Internet browsing to wo...

I have an FXS port on a router and I have to connect it to our PBX, so users inside will choose an extension and get routed through the router, instead of PSTN (I have regular telephony behind the PBX and plan to use VoIP over Internet, between 2 rem...

We have users connecting to a 3015 Concentrator over the Internet, using IPSec. The version is 2.5.2 for Client and Concentrator (upgrading now is not an option). Even though the clients get WINS, DNS, browsing the NT Domain at the corporate site is ...

Does anybody know how to interpret correctly all debug information on routers and PIXes for IPSec connectivity? Thank you!