Network Security

I have a client using a VOIP service to a third party provider (RingCentral). They are connected via Cable ISP (6mb) to the Internet and now experiencing performance issues with their VOIP service. They indicated that the call can be heard but that t...

How do i configure an ASA Firewall to deny all HTTP traffic with ' ~ ' in the URL Path.

Hi,I am receiving alerts related to Cryptowall signature which was newly release. The detection are from Internal source.I am wondering if this is also the same with BASH vulnerability signature which was revised due to false positives detection.  

Hello Guys,The OS used in Router and Switches are named as IOS. What is the name of OS of PIX and ASA?

Hi,I am using ASA 5510 and I have a specific problem with Http Connection to receive a video Flow ( RSTP protocol ) in the LAN.Some Pc users (192.168.1.133,in the log)  with ASA Lan Interface as gateway can ping the Camera but don't receveive the vid...

 Dears,I have a very plain scenario LAN cisco switch <2 vlans>  ----------> cisco transparent firwall with bvi interface ------------>  crypto box ---------> cisco router ------ <remote/other site> i have vlan 61 configured on bvi interface of firewa...

Hello Guys,I am studying packet processing in ASA and i have understood the following: -Packet processing for 8.01. Packet will be received on ingress interface kept in internal buffer, input counter will be incremented.2. Connection table is checked...

Hi All,Im facing active standby firewall failover issue once in everyday.From the logs, it looks like there is a "Comm Failure" and "HELLO not heard from mate", as reasons. Can someone help me. Logs attached. syslog:======Failover role switchFailover...

Hello,for a CISCO 2955 Switch I used the PRIVILEGE parameter in command USERNAME to achieve that a user directly enters respective privilege level after logon. But after logon the user is always in EXEC LEVEL 1 and not in the level stated in the comm...

Hi. I know some forums have been created regarding this issue. I've read many things, nevertheless It's still not very clear to me. A client asked us to give them a recommendation about this vulnerability:TCP timestamp responseI know this feature can...

I am configuring basic ASA, but unable to ping from inside LAN->dmz LAN, inside LAN ->outside LAN, dmz LAN->outside LAN.Attached is my basic topology and below are ASA configurations.ciscoasa(config)# sh run: Saved:ASA Version 8.4(2)!hostname ciscoas...