Hello,recently I'm getting on a syslog server messages from one of my Cisco 3500 XL Switch.It's about 15 - 20 such messages per day.These messages are:Message=<185>2093: 33w3d: %RTD-1-ADDR_FLAP: GigabitEthernet0/1 relearning 5 addrs per min....Messag...

Hello,Today I had a major incident in our LAN.One of our wi-fi Vlans that is routed on Cisco L3 3750 switch has been paralysed. Devices were able to connect but when You try to ping them 75-90 % of the packets were lost. After few hours it turned out...

Hello,We have setup ipsec site-to-site vpn between 2 Cisco 1751 routers. is it possible to configure a Backup link for this vpn ? The best would be to do it by ISDN. The scenario would be If the crypto tunnel is down ISDN is going up Thanks.

Hello !I will desrcibe what I want to achieve as simple as possible.I have cisco 800 series router.This router is used for 2 things:- internet connection - ipsec vpn with remote cisco routerI'm looking for way to implemet on this router simple qos po...

Hello !We're using Cisco Aironet 1200 access points. We would like to use Microsoft Radius Server for authentication by Mac address.Before we use Cisco AP's everything was just fine but since we use Cisco authentication by radius doesn't work.Somethi...