Network Security

I have an internal host initiating a connection to an external host.The external host is denying the connection and claiming that it's a mis-configuration on our ASA that's the cause.The internal host is NATted on the ASA - and we provided that IP to...

hey all, have a customer using the "name" feature where IP is mapped to a name. basically, the name is used everywhere including the acl. we just need to update the IP associated with the name but here is the problem (when using two approaches).remov...

i have asa 5505 with the asdm v5.2 (4), and the asa v7.2(4). This platform has a base license. if i upgrade adsm and asa on v6.2(1) and v8.2(2) if I lose my license and that you need to activate them? i configured site to site vpn (this firewall and ...

Hello,I have a network provided from Datacenter.I doubt this design will work but before pointing finger on Datacenter, I want to confirm.Design :[Internet] ---> [Switch] ---> [Cisco ASA] ---> [Server]Firewall : Cisco ASA 7.2 (4)They configured singl...

Hi folkshow to troubleshoot and fix the below issues?why the CPU  shoots hightCPU utilization for 5 seconds = 80%; 1 minute: 81%; 5 minutes: 81%

Hi AllI implemented Cisco 4260 appliance five months ago.  It was set up as promiscuous mode.  For the last 3 weeks,  I received impossible ip packet alerts on IPS Event Monitoring.  Source IP (0.0.0.0) - Destination IP (0.0.0.0), port 137, 138. To m...

Hello, I just started at a new company and they want to use iphones in place of blackberry's, what a surprise.  We have a exchange server and blackberry enterprise server.  My question is how do I conifgure the cisco ASA to allow for iphone vpn conne...

Dear collective Cisco geniuses...I upgraded my ASA 5520 with the latest image. Now I get an error upon launching ASDM.Version Mismatch:Your ASA image has a version number 7.2(4) which is not supported by ASDM 6.4(1) Please use Device Manager version ...

Hi,I would you like to know if its possible to use a cisco router like relay syslog.Infact, I have 1 router (router A) who can't access directly to the syslog server, and an other router (router B) who can access to the server. Of course, router B an...

Hi,I have a FWSM in between two servers. TCP session on one of the servers still remains open even if session timesout. I want to know if I enable DCD on firewall, will it detect and close idle session on firewall only or it has capability to send FI...

Hi.in my office i do have a cisco 877 to get access to the internet where i do have a static  IP address. The LAN has IP 192.168.0.0/24 with 192.168.0.1 to be the router.in my LAN i do have a voip server which is on 192.168.0.50all of the PCs have ac...