Network Security

Dear Tech gurus,Firewall     I bought a base licence ASA 5505 Firewall and I configured NAT, its working fine     I configured 5 differnet VLANS on switch and I am able to connect Internet on this vlans.     But now I want to enable a particular port...

Hi,I have a cisco asa 5510.I am doing attack a my firewall, using namp. I am seeing in the log the attack but i like that firewall send only alarm of attack by email or nagios. I have active email with warning and i received very much email.....I obs...

I'm seeing a ton of underrun and overrun errors on g0/0 (outside) of an asa5540. It looks as though the utilization is only 51mpbs, so it should be able to keep up, right?I've verified both the ASA and my switch are set for 1000gbps full duplex, any ...

I have been configuring an ASA 8.22 to use NAC policies.Not Cisco NAC devices, as in NAM and NAC, but the NAC built into the ASA code.Now I can not remove nac-policy NAC-DSIT-DMAN because it is in use.Is there some kind of circular error in syntax?Qu...

Hello all,I'm working on setting up a new ASA 5550, and have run into a question that I hope is easily answered.I currently have 4 interfaces, SL100 Inside, SL80 DMZ1, SL50 DMZ2, and SL0 Outside.  I was under the impression that each interface, depen...

Hiis it possible to assign same IP to shared interface in multiple context ? i have gone through below cisco document but this explain example in which logical interfaces are given different VLAN ID and assigned a unique MAC . so how is the interface...

Hi all,Need help. I have one webserver which open for public via http and https. The server sit behind Cisco ASA 5510. Today our webserver have been hacked by someone. The index.html has been replaced by hacker own index.html file. Is it anyway to de...

When using the connect to the internet wizard in SBS 2008 (CTIW) the server comes back with an error that it cannot communicate with the router.Are there any settings that need to be configured in the ASA 5505 to allow communications with SBS 2008 us...

My company purchased a Cisco ASA 5505 firewall from our phone company, who installed and configured it but will no longer support it.The first thing you should probably know is that I make no claims to know anything about Cisco equipment.  My primary...

I have a pair of ASA's in Active/Standby configuration.  I noticed this morning that the secondary ASA is generating syslog messages when I dont think it should.  Here is the logging configuration -logging enablelogging timestamplogging buffer-size 1...

Hi Folkswhat the below msg means,i received during testing with test coomaqnd on the asa 5510Please the below server is reachableERROR: Authentication Server not responding: No error2) how to clear the below statisticsAverage round trip time         ...