Network Security

Hi!I have one internal IP and two external IP adresses. I want to use one adress for allowing mail to my server and one address for sending mails to mobile phones. I am not sure about how the NAT should look like. The ACL is no problem since I have t...

I have our main site using a Cisco 5510 running 8.4.2 code and a remote site using a Cisco 5505 running 8.4.2 code.  The main site has a T1 and the remote site is using a DSL connection.  About every other day I have to reset the connection at the re...

Hi friends, Im changing the firewall 5510 to 5515, with ASA5510 the incoming and outgoing calls work perfectly, but when i active the 5515 the outgoing calls doesnt work, only the incoming calls work. Please any idea to fix this?? As you see on the t...

internet is working with the client except for gmail account using outlook 2010...

Hello All,I was reviewing my ASA config and noticed that port 1025 was being allowed in and statically NAT'd to connect to my email server:access-list outside_in extended permit tcp any host X.X.X.X eq 1025static (inside,outside) tcp interface 1025 Y...

I'm having issues with an exotic NAT/VPN configuration which results in "Asymmetric NAT rules matched for forward and reverse flows" on outgoing traffic.Subnets: outside: 127.16.0.2/30 Inside1: 192.168.1.1/24 Inside2: 192.168.2.1/24 VPN branch office...

Hi,Last week, I have purchased a Cisco ASA 5510 & want to block all social networking websites (https) either using CLI or ASDM.Please help me in doing so.Thanks.

Hi Community!I have a 5505 firewall deployed in a home office with two 7941 telephones behind it.  The phones pull PoE from the ASA.  The firewall was deployed a couple weeks ago, and everything worked great for about 2 days.  (This configuration has...

I have a printer sitting on an outside interface e0/7 that external vendors were able to print to prior to an ISP IP address change and IOS upgrade.We upgraded our IOS from 8.2.1 to 8.2.5. The printer wasn't changed so the MAC address mapping is stil...

Hello Folks,Is there an elegant way to perform QoS/Shaping/Policing on traffic entering a network through a firewall via Public IP?Let say I want to throttle traffic coming from 8.8.8.8 into my network, could this be done?Thanks!                  

Hi Experts,I have been going through Cisco.com and Google searches but cannot seem to find any answers to this so hoping I can get the answer/link I here.Basically, the questions are as follows:-A.  Does ASA-SM support clustering and if so how many b...