Network Security

We are trying to connect our new 4240 to our 4500 using a copper GBIC, but it seems that whenever we create the span session on the switch, it changes the interface state from up/up to up/down. Any ideas?

Hi,we are using CA unicenter as a Network monitering tool NNM module (Spectrum ).We are unable to get reliability of serial link value which can be monitered and can be tracked to be used for generating an alarm.any link on cisco.com ?Thanks in ad...

Hi all,I am facing a problem trying to establish a tunnel with one of our supplier.Their side is terminated on a IOS router currently unknown type and version (should be 12.2 - 12.4), my side is an ASA 7.2(2), configurations are attached (at least th...

I manage a seried of Linux servers and we have has a number of successfull DOS attacks recently (SYN_FLOOD). The guys I co-locate with do not know enough about the CISCO equipment to configure measures against this.Therefore they have given me the l...

I'm trying to determine what's chewing up all of my Bandwidth. Do you guys know of a way or a tool to monitor this? I'm looking for identifying the traffic.

Hi,I have been running a PIX 520 with 6.3. Now coding a PIX515E with 7.1. I decided to read a manual ;)Now I was amazing at the different NAT and policies.What is the best way to do things - on my old firewall I just had access lists binded to my int...

In a typical Active/standby failover scenario, is it complulsory to have an IP reachability between a pair of interfaces ? For e.g DMZ interface on Primary is 192.168.55.1/24 and on secondary is 192.168.55.2/24. Can failover work normally if there is...

Hi All,I created a remote access VPN on my ASA through ASDM. The internal LAN in 192.168.14.x; the remote access pool uses 10.254.14.x; my vpn client logs in normally, but once in, i am not able to reach 192.168.14.x; any tips?

Posted by: tyoungbauer@t-llc.com - CTO, Transcendent, LLC - Jun 21, 2007, 9:20am PSTI have an emergecy where I need to use the router for NAT and PAT. It is short term until we swing the firewall. I can build nat and get out bound web surfing and pin...

it has been a while since I have setup a new sensor...so I suspect I am missing something obvious. Isnt the last main option from the series of setup questions (when you type setup at a prompt) supposed to ask you if you want to configure the virtua...

Hello,If I change the hostname of a firewall will it impact my SSH connection.command to change the hostname correct : "hostname NEWJERSY-FW"

After 9 or 10 hours of normal operation the pix stops traffic at the inside interface. It's a PIX 525 with PIX 6.3(5). Logging is disabled at all - so I guess no problem with the syslog service. Any ideas or recommendations where to start troubleshoo...