Network Security

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Hello - I have an ASA as our external firewall. I have enabled basic threat detection and scanning threat detection. Given that I cannot seem to get the shun mechanism to work properly, I have configured it as strictly as possible (monitoring window ...

"helloIs there any difference between arp poisoning and spoofing"Regards,Vamsi Pinnaka

We run a pair of ASA's with a Botnet license.  Recently (like this week) I have been noticing an increase of dynamic filter alerts for IP 65.55.239.168.  This is a registered Microsoft IP, which makes me suspect that someone is running possibly a DNS...

Hi Folks1)I Have minimum ram 512 and i receive the below msg when i issue the sh versioncritical system features will not function properly. its look like what?2)Failover                       : Active/Active  perpetualwhat is the perpetual, mean?

How many concurrent SIP channels should I expect to be able to make through a PIX firewall?We currently have a PIX 515 with the SIP fixup enabled.it worked fine for a low volume of traffic, but once we got to around 400-500 concurrent SIP calls the P...

We are looking at getting a pair of ASA firewalls (probably 5510s) with IPS modules.  I plan to configure them in active/standby as our throughput needs don't exceed the capacity of a single 5510.  Currently we are running a pair of PIX515(non-E) in ...

Ok, so I ran across this message while trying to TFTP an update to a 5505 ASA. %Error reading tftp://10.10.10.10/asa823-k8.bin (Unauthorized client.)Now at first this was very confusing for me.  I will save you guys the long and drawn out details.  T...

Hi FolksHow to verify on the asa 5510 , the vpn-idle timeout,is running on default setting(30mts)

Under the System area on my FWSM module i run the sh disk: command. At the end I get error message "File Allocation Table might be corrupted, Recommend running fsck dsik:Has anyone run this command on a FWSM Module. can it be run during normal operat...