Network Security

Hello, I´m Javier from SpainI have a strange issue with my new ASA 5512 and my corporate DNS servers.my lan net is 172.15.0.0 /16, the default gateway is the INTERNAL ASA IP 172.15.10.69. and the DNS servers (172.20.10.10 and 172.20.10.20) are locate...

I need some advice.I'm told over and over again by internal staff that "if we are placing firewalls around an internet web zone, why do we need an application layer (or business logic layer) firewalled from the internal network.  Why can't we run all...

Hello everyone!Can not get ASDM to Launch, receive HTTP error code 503  - Service UnavailableCisco Adaptive Security Appliance Software Version 8.2(3) Device Manager Version 6.2(1)Java Runtime 5 update 22Any suggestions? Thank you!

Hi All , i have to open ports for vedio conferencing in my Firewall configuration , can some advise me the steps to do it successfully . regards ,

Does the pix-501 support multiple SNMP communities?  Im trying to add a second one, but the original community string gets removed when I add the new one.  If we can have multiple SNMP hosts, then I woud imagine you could have multiple strings. I tho...

Hi there,I noticed duplicate commands in the running config of our standby ASA (failover pair). diff -u asa-253.startup.cfg asa-253.running.cfg:--- asa-2.startup.cfg 2012-08-17 15:49:12.000000000 +0200+++ asa-2.running.cfg 2012-08-17 15:50:21.0000000...

All of a sudden I'm unable to connect to one of my primary FWSMs via ASDM nor https.  SSH and telnet work fine.  I can also connect to the backup firewall via ASDM as well.  Checked the ASDM configs on both firewalls and they match.  No config change...

Hello,For the moment we have a router Lynksys RV042 , and we want to change it with an Router Cisco 891 .I have configured our new router Cisco 891 using Cisco configuration Professional because I am not an cisco expert:I have configured : DHCP, DNS,...

HiSince I swapped a Pix Firewall for a Cisco ASA 5505 Firewall at one of our Sites the VPN Tunnel wont come upI'm getting this:asaXXXXX# sho crypto isakmp sa   Active SA: 1    Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)Tot...

I have one application that need to be allowed from IP address that belong to India and rest should be restricted.This can be done using the ACL but we would like to know is there any other way to do so. Like most of web servers take the IP address d...

I just got to work with a ASA in production having 8.x OS and I saw some strange thing . DMZ is assigned 70 security level while outside is 0 , while doing packet-tracer from DMZ to Outside ip it gives me a drop by ACL message ( tcp / icmp ) while it...