Network Security

Hi There,I'm actually require authentication for users who are coming from the PublicVLAN (the vlan associated with the wireless hotspot) to authenticate themself to the LDAP server via my firewall ASA 5510:access-list PublicVLAN_authentication remar...

The Cisco ASDM or the event manager show wrong source/destination for teardown tcp messages:In this example the communication is an ssh session;from 1.1.1.1 -> 2.2.2.2 ssh and the connection is reseted by 2.2.2.2The message build outbound is correct,...

CAn we filter MAC address in LAN using ASA 5520 , whats the method ?

Hi,just upgraded my firewall to Ver 8.0.4 and now have a connectivity issue with a service that used to work fine on Ver 7.1.I think it seems to be due to the TCP handshake SYN - SYN ACK - ACK not being in order.Basically the service makes an outboun...

Hello,Do you know if it is possible to filter TOIP flows between call server (Siemens technology) and phones ?Specialy, PIX is able to support dynamic ports opening?? Is there an ALG embeded?Is it required to upgrade PIX or not? is required a special...

I would like to know if the Console cable that comes with a Cisco 877 wireless router will work on a PIX 501 firewall? If NOT then where can one buy a PIX 501 console cable?Please respond or mail me at [email protected]

Hi ,I have an asa firewall when i keep in the network it works fine but after 1 or 2 hrs we will not able to reach the firewall all the traffic will be blockedAs i checked i could find the crc errors in the inside interface then i have changed the du...

Hi,I have a strange problem with dial in VPN's and Natting from outside to an internal server (SMTP for a Mailserver for example) when both the local network which should be accessible via the VPN and the Mailserver are on the same VLAN.We have sever...

Hi Everyone,I'm just transitioning to a new laptop. What a huge job moving all the files and apps over. I just fired up the Cisco ASDM Launcher and it works perfectly.On my old laptop the ASDM Launcher contained a history of all IP Addresses (and use...

Hello,I currently have the default inspection engine configured in my firewall to inspect http traffic.  I noticed that the ASA will drop packets when visting legitimate websites.  I've tried googling for a workaround but have been unsucsselful.  How...

Hi,We have a setup of FWSMs configured in single mode in 6509 chassis. Both 6509 are configured in VSS.Recently I have upgraded the firmwre from 4.0(3) to 4.1(3).....before upgradation config sync was not having any problem.After upgradation...If any...

Hi,I am having FWSM and one of the context , lets say firewall1.Below are some config in that context:name 10.50.1.1   server_aname 75.24.10.41 public_ipaccess-list internet-in extended permit icmp any any static (inside,internet) public_ip server_a ...

Hello EveryoneRecently, I deoplyed ASA 5520 as our company firewall, everyting was working fine except two main problem I still can not resolve them after I did a lot of research. I hoped someone could help me out or give some ideas.1. DNS rewriting ...