Network Security

My ASA is sending these alerts to my syslog server and I was hoping that someone could either confirm or deny that this may be an ssh brute force attack. I do realize that it may be indicative of some other separate problem, but the excessive use of ...

Hi I need to allow access to a Linux box on port 4022 via my Cisco FW 5510 via the internet (outside access). Packet tracer says that the packet will be allowed. But when I putty into the ip address for this Linux box on port 4022 the ACL doesn't get...

Hi All,Recently i have come across an issue that i am unable to do "write mem" shows*************************No memory availableError executing command[FAILED]*************************Command output of "show flash"Cisco_ASA# sh flash--#--  --length--...

Hi guys,I am managing 4 IPS 3D8250s using FireSight. I moved all the IPS appliances from default access control policy to a custom Access control policy. While moving the appliances to this policy ( adding the appliances under the tab "Targets" and b...

Hello,I just acquired 4 WAP4410N and I am trying to setup a security access code.  Presently one of the device is wired and works correctly.  The problem is that I cannot access to the setup menu of the device and cannot set the security system. Is t...

Hi all, I have an ASA and a 2811 behind it and I had to replace a battery on a UPS so I had to take down the network to do it. Before doing it the network ran fine, but I did a WR MEM and a Copy RUNNING to STARTUP config thinking that the configs I h...

Hi All,I have a pair of 6506's with FWSM modules within (at version: FWSM Firewall Version 4.0(6) ; Device Manager Version 6.1(3)F ) .Recently, the ability to write running-config to start-config has failed. After 2 sessions with Cisco TEC which invo...

I thought I had done my last PIX to ASA conversion, but I was sadly mistaken.  Here's the problem I'm having.  I currently have an install with a pix515 we are trying to replace with an ASA5525x.  I tried replacing it after going through and updating...

Got an ASA5506 with FirePower module.  I can only access this via ASDM on the management interface.  I changed the IP so it ran on my "inside" but it can't contact the module on that IP and it takes an age to loads the ADSM without it.  Is this possi...

Hi guys I have configured a asa 5505 for webvpn and anyconnect client .Webvpm work properly as I expect grant acces to server and so onAnyconnect estabilish connection and try to acces at server on inside network without success, I attach config and ...

HiI've just unboxed my 5525-x and connected the management interface to the network. Gave it an ip address in the correct subnet but the interface does not come up.logs show:IKE port 10000 for IPSec UDP already reserved on interface managementHow is ...

Hi All I have configured 3 zones on my router using the zone based firewall. Everything was working fine for a few hours but then traffic suddenly all Internet traffic was blocked on the Outside interface. I could access the router from the inside an...