Network Security

Currently, I have a static mapping of my public mail ip address to my Exchange server on the inside of the ASA 5510 using the statement below:     access-list outside extended permit tcp any host 69.3.216.x eq smtp     static (inside, outside) 69.3.2...

Hi all,My Private address is NAtted on firewall. there is asterisk server Public address that i usally open from outside the office. but when i try to open it from inside network it doest work. even after my ip address is natted. but I am able to ope...

Hello,We have an ASA5520 which connects our offices to a larger corporate WAN which we deem as hostile.  We've always allowed traffic to flow off our network and onto the corporate network without any controls, however, following a recent virus outbr...

HelloI want to block bittorrent on pix or cisco7603. I want to block it completely (client can choose dynamic ports),so i need packet inspection. On pix525 i could not find any bittorrent inspection, on cisco7603 NBAR implementation is very poor(it a...

Hi, I'm trying to get info about a PIX with snmp but it's not working, I get a timeout when I try to query it. I'm asking to the inside interface over VPN, It works fine and I see all the computers on that subnet. I think I just need an ACL but I'm n...

My service provider just enabled TLS on their end.  Because of this, our scanning appliances do not work correctly are the SMTP channel is encrypted.  Is there a way on the PIX that I can block the STARTTLS SMTP command?  This way I don't have to do ...

I had a PIX515e fail on me last week.  I had to jump through some hoops.  I had to get a replacement and then reload the config. When I reloaded the config a series of commands were omitted. NAT’s and Crypto’s mainly.  I think this was because I ha...

We have a customer that has internal clients connecting to an outside PPTP server through a PIX firewall. PPTP setup works fine, but after 3 minutes the PPTP connection goes down. We are sure the PIX is the problem.The PIX is configured for PAT, beca...

Hello,I have a case that i am trying to solve and i could use some help.Let me first describe the situation and then we will move on to possible design solutions.I i have a customer with the below simple topology :Internet-Router         |      ASA  ...

Hi,Am trying to undestand if I can use an ASA 5510 to set up firewall policies for AD Groups.E.g. I have an AD group allowed_users that I want to allow access to the internet.Can I integrate an ASA with my AD, and then create a Policy that allows thi...

Hi all,We have 2 PIX 515e running in active-active having 2 context with 8.04 image version.When connecting through console getting below error messages:%PIX-3-210005: LU allocate connection failedAccording to Cisco, this error means the standby unit...

hi all,        i have one prob regarding ASA ASDM , when i open the asdm web page the following error ocuured pls suggest ,Regardsmak