Network Security

I have 13 sites each with an ASA 5505 and a Cisco 1602i directly connected to ethernet 0/7 via short 3 foot cable that came with the AP.At 3 of these sites, I have an issue where one or both PoE ports go out randomly. Sometimes uptime will be a week,...

Hi,I have implemented zbfw on Cisco 1800 series router. But after the implementation I could see that Gmail/Yahoo is not loading.Please could some one look into my config and advise. I can access all other websites without any issues.class-map type i...

 Hello All,I have a Cisco ASA 5545 connected to my ISP Router,also i have three servers on which i want bidirectional traffic to pass through the ASA.I want to assign private addresses to these three servers but in different range.Kindly let me know ...

Hi alldoes the IPS on the ASA protect against syn floods etc ? 

The title says it all.How do I block users from using the Tor network to bypass the firewall?All I'm able to find is that Tor uses port 9001 (TCP) by default but switches to any other open port (80,443,25,23,22, etc) when it's blocked.Blocking those ...

cisco ASA5550 Inbound TCP connection denied from 172.XX.XXX.2/3314 to 172.16.XX.XX/XXX flags SYN  on interface inside

I have 2 ASAs, a 5510 and a 5505 both are connected to a Cisco 892FSP Ethernet Switch. On the 5505 side, I have created an IPSec VPN from ASA to a Branch Office located on a different city (Cochabamba City) Via Internet. On the 5510 side, I have a ER...

Hey Guys, I have a question regarding reading Netflow info. I have a collector configured and it works perfectly fine. I noticed today that we saw a huge spike this morning for about 15 minutes, but the connection just shows from one ASA to another A...

Hi, Just a quick question if anybody has run into a bug where the ASAs "timeout" settings are not being applied to idle connections. It seems that our ASA running the software level 8.4(6)5 is not tearing down connections. This mainly seems to be a p...

Hyi face a [roblem regarding the NAT configuration when i gave command nat-controlits gives errorciscoasa(config)# nat-controlERROR: This syntax of nat command has been deprecated.Please refer to "help nat" command for more details. please resolve th...

hello guys,have you heard about the tor client.it allow you to use the internet with anonymous connection and it's really geopardising our internal security.do you know a way of stoping it?thank you.

Hello Group.   I am looking into to methods to block TOR network activity both inbound and outbound.   Outbound is pretty straightforward by utilizing IPS and AV signatures.   Inbound seems to be a little more involved.   Preventing inbound traffic r...