Network Security

Hi   Source is getting SYN,ACK from destination but rather than sending final SYN it sends Host Unreaachable.  Capture attached.   Kindly advise.   Thanks

I need help white listing 6 ips thru a single external IP to an internal server on the network to access a web based application (linux) I have attached a drawing of the scenario. Can anyone help me get this done? I have been using books, the web, et...

Hi,   I'm trying to upgrade Firepower Management form 6.2.2.1 to 6.2.3. I get an error each time that says : "encountered object ' at /usr/local/sf/lib/perl/5.10.1/SF/update.pm line 1534. ', but neither allow_blessed nor convert_blessed settings are ...

Hi all,   I am considering integrating NSEL with our SIEM.  We have already integrated our ASAs with our syslog server but I could see that there isnt clear visibility of traffic in our environment; hence thinking of going for Netflow. So I have a fe...

Hello, How to verify if network traffic is checked by IPS rules. I have set p a rule to inspect telnet traffic for root login from a specific host, but no event is generated when I telnet to a host with root login. ASA5512-x access-list sfr_redire...

Hello,   I want to change an existing policies in my FDT via FMC to another policies that i just created ? How can I do via FMC administration.   Kader from ALTICE-SFR

I have a problem with QoS which appears with all images later than 9.5.2, I don't have this problem with 9.5.2 or older images. I have two interfaces which look into the Internet (Outside_1 and Outside_2) and one interface which looks into a local ne...

Hi I have a 2 asa Firewall DMZ to set up, my question is i plan to put a switch between them is there any special config I need in order to route traffic through internal Firewall to external Firewall to Internet.??     Thanks

Dear All, I have a 5525x running in the network and have a 5510 in stock. Can we copy the configuration from 5525 to 5510 ? what is the better way of doing this? I dont have a smartnet for 5525 x , so it will be better if I keep the 5510 ready incase...

I am unable to route my internal Network through my asa5545. Here is a snapshot starting inside -> out. I have: 4 Trunked Switch -> connected to a Core Sw(which as 2 weight static routes pointing out)-> 2 FW (with F/O) all good here -> connected to 2...

Hi, I was trying to do a fresh install of Firepower services on the built in SFR - I get as far as the boot and recover stage and it just seems to stick in the Recover state - It has been left over night and still the same. I shutdown the module and ...