Network Security

Hi All :Below please see my  client email access picture in attach file. It happens the email access from DMZ zone of RTDB firewall fail to Edge Network mapped IP address.Funny thing is the access from partial network is OK as indicated separately : ...

Hello,i have an intressted problem with my ASA 5510 CSCi configured many firewalls till yet and i configure the normal static often times but this time it is not working as assumed.Cisco ASA 5510 in failoverPublic Network: is a x.x.x.128 /28the two i...

Hi all,I’m  having the issue in subject, in a fwsm, but the strange this is that I  have the acl created to allow the traffic. And there is no “deny” rule  that can cause any issue.Can this be caused by nat-control?Thanks all

Hi all,We have a Cisco IPS device in monitoring mode, monitoring 2 segments of traffic via spanned ports on two different 3750-x switches (inside and DMZ). After a period of say 2-3 hours the ports just stop passing traffic to the IPS device. To chec...

I can't seem to get this going for thie life of me, maybe a little fuzzy on the concepts but I've done this before without problems. I need the DMZ hosts to be able to ping anything we have inside and outside our network. I will lock down anything el...

I'm new to Cisco ASA, looking for some help.  I am trying to configure Nat on a clean ASA 5505, but can't get it to work.  I ran the commands below. On the ASA I can ping the internet and inside vlan ip.  On my laptop I can ping the ASA inside vlan i...

Dear,i have a ips card installed on an ASA.The ASA version 5520 8.2(5)26ips sensor 7.0(7)e4                   Can you help me to understando how to identify the new signature after an signature upgrade?I don't understand how to search the news signat...

We had our primary ASA-5520 fail. Both primary and secondary were running 8.4(1). The primary was active, and we only configured the failover commands on new primary ASA. However, upon inserting the primary ASA into the network and powering it up, we...