Network Security

Hi,   Sometimes our carriers are unreachable on vicidial. we have a static Nat for these carriers on our ASA firewall. This issue is happening intermittently and temporary resolution is reboot the ASA. I didn't try to clear the connections for nat wh...

Hi,We are having SIP trunk for Enterprise LYNC Voice functionality. The LYNC servers are behind ASA firewall. when the call is initiated traffic comes via SIP trunk to firewall & then to LYNC servers & to users using LYNC client on system. We are fac...

I have an ASA with two WAN uplinks. The backup WAN is not pingable while the primary WAN is. However, I can SSH into the ASA on either uplink. I've seen a few articles saying that this behavior is expected and I was wondering if anyone could explain ...

Hello All. I need to allow traffic between webserver in dmz and mssql (Microsoft SQL Server 2008).MSSQL use dynamic port (now it is 63796) and this cannot be changed.Basically,  I can allow such traffic using next configuration:access-list dmz extend...

Hello, i created a new Network, and have the ASA as the router for it. Like always. However, Windows 10 Clients within the Network will not work, where Linux does: I captured some traffic, and it boils down to: Windows gets an IP from dhcp (Discover,...

Hi. I am rolling out some Cisco 5506 FTD devices, to our remote offices. In the head office, we have an ASA5508-X, controlled by a vFMC, but for the remote sites I am just using the HTTPS based configuration, directly on the device. All that the bran...

Hello,   We have two ASA5585s physically connected for FO. Two interfaces have been used; one interface is used for the State Link and the second link is configured for the LAN FO. I've read in some documentation that the recommended configuration fo...

Hello Team,   We have to manage ASA Firepower from Management Center-1000, while following procedure we were getting below issues.    while configuring in firepower we could get below error > configure manager add 10.239.0.132 cisco123getPeersByRole:...

Hi, I would like to know if intruder(attacker)  attack our network and intercepted by our IDS we will get alarm generated but , what reply will attacker see? 1- will attacker receive any reply back from IDS , alarm or he see his request has been drop...

Hi Guys   I'll be doing a migration from a pair of 5520's in active/standby to 5520-X's. My firewall knowledge is very rusty so I have a few basic questions.    1. I'm going from asa firmware 8.4 to 9.8. Will this be a simple copy and paste job or wi...

I’m configuring an ASA 5585X and want to know if there is a command that will configure the firewall to show when an administrator has acknowledged an error or alarm. I’ve already configured the device to send email alerts, but specifically I’m looki...

Hello every one   I have a ChackPoint firewall configuration that I need to convert to Cisco. Is there any tool I can use for the converting.  I have tried to download one from Cisco.com https://software.cisco.com/download/release.html?mdfid=28058280...