Network Security

We have a subnet(within public IP addrss) that is drop (into Null0 interface) from our core switch in the Inside network. Therefore pinging it results destnation not reachable. however some company outside in the network compains to us that there is ...

Hi all, We are planning to use an ASA 5540 to terminate about 3000 IPSec connections. The maximum supported IPsec VPN Peers for this platform ist 5000, so this should be ok in theory. What is a bit unclear to me is what exactly happens when (for what...

Hello.I have a question on ASA dhcpd address restriction.I've noticed that maximum available DHCP pool is restricted to 256 addresses.http://www.cisco.com/en/US/docs/security/asa/asa84/configuration/guide/basic_dhcp.html#wp1125257Is it merely the res...

Hi,I have ASA 5520 installed.I want to use ntp server for firewall clock setting.I found one open-access ntp server (stratum 2) in Los Angeles:dmz0.la-archdiocese.net209.151.225.100Can I use the following command to set ntp server?ntp server 209.151....

I was hoping to get a little assistance in opening a port through our ASA 5510. I need to allow a tcp connection for IP 65.74.157.196 on port 5223 through our firewall to the subnet 10.1.12.0/24. In the GUI, I created an access rule on our Outside in...

       Hi,I have an user 172.26.216.7 trying to access server 155.111.150.125 port 3200 (behind firewall) getting an error message : connection to partner broken. I have captured the traffic and there is a TCP handshake between user and server. Below...

I am setting up an ASA in multi-context mode.  Have run into one problem that I havent been able to resolve.  I can access with ASA on the interface I am talking to it on by Telnet and SSH just fine.  ASDM wont response.  I have made sure that the ht...

Hi Team,I'm kind of stuck here and I'm not sure what I'm supposed to do now.  My company wants to switch from copper to fiber internet access.  Not a problem, I went through my ASDM and changed all the IP addresses from the old access to the new ones...

Bonjour,SVP comment bloquer l'accès de l'exterieur à teamViewer NB: j'utilise ASA 5520Merciiiii

Hello, I have an early model PIX-515 that hasn't been used in a long time but I want to get it working again in a lab environment.  I am at loss right now on how to get into it though.  CONSOLE:I've tried connecting from the PC's serial port to the u...

I'm looking to implement CSM here shortly and I'm curious if it will also manage other firewall appliances in addition to the Cisco environment? I have about 120 SonicWall device which will be convert of the next year to ISR 2911 with ZBF's and would...