Network Security

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 1...

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 userna...

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?

Hi, this is very unsual DNS error am seeing , and browsing is not available , Web site you are looking for is unavailable due to its identification configuration settings ...also message " this error indicates that the gateway could not find an autho...

HiI've got a pix501 running 6.3(3) code with the command fixup protocol pptp 1723. I've got a server (windows 2000) also on the inside which is my pptp client and an instagate firewall on the internet which is my pptp server. For some reason, the pix...

I currently have a 2600 as my headend for a few GRE tunnels to 1710s. I would like to add a PIX501 to the mix. I know that you can't run GRE over the pix, but wanted to know if there are an considerations before I try to configure it. Also, are there...

Hello all,I am new to PIX and I would like to take the advantage of FO bundle (I learned it is the cheapest among all bundles). I am aware that I cant use Fo bundle as a standalone system (I read that it reboots once every 24 hours if I use it as a s...

Are there any Cisco documented limits to PIX access-list entries or to the overall config size? I am particularly interested in PIX 6.3(3).

Hello,I'm trying to setup a PIX 515E in the lab for learning .I've configured ether0 with IP address 212.100.211.1/24 and ether1 with 192.168.10.1 /24 . Ether0 Interface of Pix is connected with a PC having IP address of 212.100.211.2 /24 using cross...

I have several IOS routers that are successfully establishing IPSec tunnels to my PIX. However there is one particular router that will not connect. It is no different than all the rest, same IOS, same crypto config but it just doesn't work. I have d...

Does anyone see anything wrong with this config. ? I just recently had to switch ISP and got only one IP from my new one. Since then, internet access has been sporadic at best and I cant seem to figure it out. Simple config for the most part other th...

I have a PIX 535 that already has 3 gig/fiber interfaces + 2-10/100 NICS in it, and 5 open slots. Question is, is there a limit to how many more Gig/fiber interfaces I can put in it?I'm surfing CCO for the specs and if there are limits to how many in...