hi all,some users are compalining the voice is not clear (a lot of cut-off and muting while speaking), I installed a sniffer in the network but couldn't find the reason, how can i start troubleshooting and find out what the reason of this disturbance...

Hi,I installed and configured a wireless network using Linksys router 802.1g so about 20 users accessing the network and we are agressively increasing in number of users so I want to know is this router will be adaptable for that increasing no. of us...

Hi All,because always I was wonndering why the IPsec VPNs is vulnerable to the MITM, and we know thats the Ipsec hosts are authinticated and encrypted from the first steps,I want to ask how this attack will pentrate this resistant and anti proof tech...

Hi All,How to secure a credit card number in the public server...is it by encrypt the credit card number with key derived by the combination of identity and password?...or is there any diffrent way..actually I got this question in the CCIE Secuity ex...

I have a Network of 4 VLANs, one of them belong to the servers VLAN, every thing was ok, but suddenly the perormance render very slow and when I try to ping the any server it times out (request time out).can any one give a clue how I could troublesho...