Network Security

Dear all,Now i have problem with email ( Exchange server) , i can email out ( inside to outside ) but i cannot receive email from outside?How can i check ASA block email ?Which command that email SMTP ?Best Regards,Rechard                  

Hello,I recently purchased a PIX 515e with the "Failover" bundle, can I use this as a standalone unit? or, do I need to purcahse another ver. of the PIX IOS to make this work as a standalone? are there requirements to replace hardware as well?Thanks

Hi!I have an ASA5505 running 8.2(5) and it works fine with a simple config (thanks JF). However, behind it, a NAS is set to download stuff automatically somehow using port 51413. It seems this has stopped working.How do I open that port to a specific...

Hi All,We have an IPS4270-20-K9 appliance monitoring our DMZ network and INSIDE segment. There are two virutal sensors with different Signature Definiton and Event Action Rules policies for each segment. We recently updated software version from 7.0(...

Long story short, we converted an old firewall from ASA 7.2.4 to 9.0.2 recently and well...80% of the config carried over with all everything in the config functioning as intended....except NAT. I've been racking my mind around the nat rules and why ...

HiI am running version 9.1(1) and ASDM 7.3.1 as Cisco recommended.It looks like the creating of objects or something similar doesn't get applied. I don't see any progress bar window which generally says applying your config changes. So after a while ...

Hello,I have the following problem: I am using a management-only interface on ASA 5512X. This management interface is directly connected to a management network. i have configured the ASA to allow VPN on the inside and assign addresses from a pool in...