Network Security

Hi,my costumer´s Internet Firewall between inside, outside and DMZ networks is a Linux running Iptables. Well, his Proxy Server is installed in DMZ network and his inside workstations access webpages passing through this proxy. This access is carried...

Our PIX has extremely high CPU usage, mostly 99%, with lots of interface overruns. Is there a way to track what is causing such high CPU usage. We have a VPN tunnel running between the sites as well. For that very reason, it keeps locking up every no...

Hi I have got a PIX 520 that I cannot seem to get working.The following message is displayed. Any ideas what the cause could be.Cisco Secure PIX Firewall Version 5.3(2)open(ffsdev/2/read) failedAn internal error occurred. Specifically, a programming...

I know VPN 3k boxes talk directly to RSA server without the need for a proxy device but I am not sure about PIX running v6.3.Thank you

What's the difference between Attack and Info policies with the PIX IDS feature? It looks like the same global signatures are used for each one, so why have two policies if they both do the same thing?It would be nice to enable or disable different s...

We really need some help! We have tried everything to get streaming audio and video stooped on our new PIX units to no avail. We looked through these forums and found the following conversation thread http://forum.cisco.com/eforum/servlet/NetProf?pag...

and the users get "remote peer not resonding". But when using dial-up connection, they get through. What could be wrong? We are using Cisco VPN Client ver 4.0(rel), PIX Firewall version 6.2(1) and PDM 2.0(1). I'm a new to the PIX 501, so I need help!...

Hello,I'm sending part of my PIX configuration (ver 6.3(1)) .Users from Inside the Network (secure ) can't able to access the Internet through PIX where as if they are directly connected to Router byepassing PIX , they can . From PIX , I can able t...

I don't know how to fix the problem of DNS not working through the PIX firewall. We have an internal DNS server and our ISP hosts external DNS servers. Would this work? Apply an ACL on the Inside interface that looks like:access-list 101 permit tcp...

Is there a way I can force all SMTP traffic out a specific ip adderess and continue firewall integrity.

Hi,When configure PIX to VPN client 3.x , we use the command vpngroup.How about if I have 20 VPN client users, does it mean I need to create 20 vpngroup XX profile ?Can we have multiple users in one group and assign individual user with unique usern...

Problem with mailserver communication through a PIX with mailguard (fixup smtp) enabled. Running 6.1(2) version on test PIX but we see the same problem on a PIX running 5.1(?)debug fixup report -->---------------------smtp_cmd: (w05857/25 <- 15.162.1...

I have only 1 public ip address(the address allocated to my external interface of my firewall). I need to hide multiple outgoing devices with a private ip address to the internet behind this public ip address. Is this possible?