Network Security

HiOtherday we had a problem with my FWSM. There were huge no of xlate connections shown in the firewall. Traffic was not going through, interfaces were in hung state, had to reboot the FWSM beside blocking the IP Addresses from where the huge number ...

Does anyone have any information or links on setting up MAB on ACS 5.1 and Catalyst 4500 Switches.  I am interested in MAB not 802.1X.

Hello all, I searched on this one and didn't get any hits so here it goes.  I began receiving a flood of warnings from my IPS saying that signature 35646-0 was being triggered.  All of the attackers and victims are internal and they all revolve aroun...

Hi,I am getting the below  messages in my cisco asa 5520, during this time tunnel is down. just what to check whether the problem is at remote FW or with asa. local fw: asaremote fw : check point UTM edgejan 12 2012 10:50:27: %%asa-3-713902: group = ...

i,We have created site to site tunnel .Tunnel is up the problem is we have are not able to access server from far end.Access- list is also correct .Request you to guide me in excuting capture command through asdm .so that we can share the logs.

Hey Guys,I'm beating my head and probably missing something simple, I have an ASA running 8.4(2) 5520 trying to do an inbound NAT from the internet to the machine.  THis is what I did interface INETsecurity-level 0 interface DMZ security-level 90 obj...

Site A ASA5550 with vlan1, vlan2, and vlan3 <~~ HeadquarterSite B ASA5510 with vlan1Site C ASA5505 with vlan1Site A is a HQ and we have Site-to-Site VPN set for all sites with IPsec IKEv1 IPsecSite A <--> Site BSite A <--> Site CProblem is on Site A ...

Hello all,I seem to have a weird issue with ASA 5510 which is actually resolved but would like to share it.We have a cisco 3745 which has a public LAN port. It has the IP 1.1.1.1/24 ( for example) assigned to one of it's fastethernet interfaces. On t...

I have   newly deployed network. I have  two ASA5520-AIP20-k9. both connected to ISP and configured as Active/standby failover. the ASAs were working fine at first but later on, the  internet connection becomes very slow. the ping reply i am getting ...

HiCan anyone provide me the details regarding flags when excuted show local-host command.I am geeting flags as UfFRIO and some times UB.Does it indicate malicious traffic.

We're upgrading from ASA 8.2 to 8.4.  Our current config as some NAT0 rules with any.  I inherited this config, so I'm not sure why they are written this way.  But apparently the NAT conversion tool has a bug (CSCtf57830) that prevents proper convers...

Hi,I have a problem with an asa 5540. The internal flash (disk0) is not working anymore.I would like to use the external disk1 flash to store the startup configuration otherwise every time I reboot I have an empty configuration.Is this possible? how ...

Hello all.I think the answer may be "not possible", but thought I'd run it by experts first.We are planning on multicast video/audio streaming the speech our company president gives during an upcoming "End of Fiscal Year" party.We will multicast it u...