I did a upgrading procedure for 1120B from 12.3.7 to 12.3.11JX1. I didn't use the upgrading tools, I just used the web page for upgrading. Now the AP can not work, it's rebooting all the time. Who can help me for the recovery?THX!!!

I installed a SIP gateway and a sip server. It worked well. How can I restrict illegal SIP Server send request to My SIP Server??? Who can provide sample config about that deny illegal SIP Server send request to My SIP Server.Thanks a lot!!!

I am setting up a large network for my ISP customer. We use cisco router for the VPN and PPPoE server or gateway, use the cisco ACS 3.3(win2003) for the AAA service.We found a problem:If we power off the ez-vpn server (cisco router) or PPPoE Server, ...