Network Security

Hi All, pulling my hair out on this one...  We have an internal PPTP server that works fine when I access it via internal subnet.  However, I cannot get access from an external IP via our ASA 5505.  I've tried enabling/disabling PPTP Fixup as well as...

Hi I am configuring Cisco 2911 Sec-k9 router. i am able to block all the sites but not able to block Https Trafic like Facebook,youtube,some unwanted Sites. how to block them. i tried with key word blocking, but still https Sites are opening.and i wa...

Hi guys,As you can see in the attached file i have a web server in dmz which has a real ip of 172.168.100.1 and a public ip 192.168.200.1 (let's assume that this is a public ip address for security reasons). All necessary configuration regarding natt...

We currently have some Cisco 3560X switches that are internet facing and also some Cisco 3750X switches that are within our Corporate DMZ.The external facing switches are just really operating at layer 2, have no IP address configuration and just for...

Hi,  i have this configuration on on the Asa client  : Savedz: Written by enable_15 at 13:39:22.779 UTC Thu Aug 15 2013!ASA Version 8.2(5)!hostname Lakewoodenable password 8Ry2YjIyt7RRXU24 encryptedpasswd 2KFQnbNIdI.2KYOU encryptednames!interface Eth...

Hi,We have to remote sites which are connected with Cisco ASA appliances to our data center and the other remote site's ASA has some very strange log entries.Strange thing is that the site-to-site VPN connection works anyway and other ASA appliances ...

Hello All,Would someone please tell me how to set ip helper-address on a subinterface in a ASA?We have different dhcp server on the network on a linux boxBest Regards,-Rouzbeh

Hi All,Two firewalls connected in Failover mode. We would like to change subnet mask on Inside interface.Can we achive this without any impact ? becuase firewall is in production and do not want to get any distrubtion to the existing sessions.ThanksS...

Dear All,                 We have installd cisco ASA 5540 along with AIP-SSM-40 Module as our perimeter device. I was troubleshootig an Microsoft ISA proxy server issue when i found this error message occuring frequentlyA TCP packet was rejected beca...

I have an interesting problem that I am looking for some advice on.  I recently replaced an ASA5510 with an ASA5525 on site.  The LAN interface on the ASA plugs into a linux transparent proxy server.  Over the last few weeks since the ASA replacement...

 Hello all... hoping somebody can help me here. Having a bear of a time getting WCCP redirection working for http clients using squid on CentOs as a proxy and a ASA as my firewall device. I've followed 10 or so articles to no avail. This one here see...

We have Cisco ASA 5510 FirewallHaving 4 public ips in which 3 are working without any issues.The 4th public ip previously working but suddenly it stoped.it will work only if i connect the cable to LAN and Manually assign the Public IP. My ASA Regular...

How To Using Two Different Public IP Address on My DMZ with ASA 5520Postado por jorge decimo decimo em 28/Jan/2013 5:51:28 Hi everyone out there.can any one please help me regarding this situation that im looking for a solutionMy old range of public ...