Network Security

HelloI Done Configuration Transparent mode in Cisco firewall asa 5505. But now we receiving the Email form gmail, yahoomail hotmail , when we try to send the Email get message "your message sent scuccessfully " but it is not reach the destination . s...

Hi all , Regarding bug  CSCuh38133 , is it device vulnerabile if ip device tracking is not used on device ? Any documents for that ? #show  ip device tracking allIP  Device Tracking = Disabled----------------------------------------------------------...

Hi guys,when i upgrade ASA 5510 from 8.2 to 8.4 predefined TCP/UDP ports are missing can you advise where can we get it.

Just setting up and testing a Cisco 891-K9 router. Used CCP for basic setup, figure I'll tweak any settings needed later.For the firewall, I chose the default "medium" security setting in CCP, then added some holes (already setup in NAT) for outside ...

Hello all, we have a couple of asa5520s that are configure in active/failover mode.A while ago we had an issue with the primary unit so we took it out of production and replaced it. At that time the secondary unit became active.Needless to say in ove...

I am installing a brand new Cisco ASA 5545-X with IPS and for some reason, even after a "configure factory-default", one of the interfaces (Gi0/6) is generating DHCP Discover packets.I have already checked all the other interfaces and only Gi0/6 has ...

Hi,Have anyone configured ECLB in a pair of Nexus 7018 to "load balance" the traffic for several IPS Sensors.http://www.cisco.com/en/US/products/hw/vpndevc/ps4077/products_configuration_example09186a0080671a8d.shtmlI am not really sure if it works wi...

Hello,I have a customer who wants to use the expansion slot on his 5515. I can't seem to find anywhere about installing an expansion module for rj-45 connectors, can someone please point me in the right direction? Also, I am sure the ASA will need to...

On the ASA 5525-X is configured to access FQDN. Everything works well, but there is one feature. Lifetime matching FQDN and ip default 21 min., Obtained 21 minutes after ASA updates the information, but she did it for a minute and all this time block...

Hello, I would like to remove an object configured in ASDM by "asdm location 1.1.1.1 255.255.255.255 inside" command. Sadly, this object "1.1.1.1" stays in several NAT rules and access rules in the configuration so I can't remove this object because ...