Cisco Router – Configure Site to Site IPSEC VPN
KB ID 0000933 Problem I’ve done thousands of firewall VPN’s but not many that terminate on Cisco Routers. It’s been a few years since I did one, and then I think I was a wuss and used the SDM. So when I was asked to do one last week thankfully I had the configs ready to go. I’m going to use the IP addresses above, and my tunnel will use the following settings; Encryption: AES. Hashing: SHA. Diffie Hellman:...
Cisco PIX 500 – IPSEC Site to Site VPNs (v6)
KB ID 0000611 Problem Note: This is for firewalls running an operating system BEFORE version 7, if you have an PIX running version 7 or above go here instead. I’ll run though he commands first and then the configuration from PDM at the end. Solution PIX 500: Configure a site to site VPN from command line 1. Connect to the PIX, go to “enable mode”, then to “Configure terminal mode” User Access...
Troubleshooting Phase 2 Cisco Site to Site (L2L) VPN Tunnels
KB ID 0000625 Problem It’s been over two years since I wrote Troubleshooting Phase 1 Cisco Site to Site (L2L) VPN Tunnels. I’ve always meant to come back and write the ‘Phase 2’ article but never got around to it. This article is NOT intended to be a ‘fix all” for phase 2 problems, it’s designed to point you in the right direction to locate the source of the problem. Solution Here’s my...
Cisco Firewall VPN “Hair Pinning” Note: Cisco refer to this as a “Spoke to Spoke VPN”
KB ID 0000040 Problem You have multiple sites protected by Cisco Firewalls, you establish a remote connection VPN to one of your sites, but cannot get to the others. Solution Normally your remote workers will establish a VPN, with a VPN client (though this principle will also work for remote users with a hardware firewall). In this example we will stick with a remote client using VPN Client software (either using an IPSEC version 3...
ASA 5500 Adding a DMZ Step By Step
KB ID 0000316 Problem Assuming you have a working ASA 5500 and you want to add a DMZ to it, this is the process. Assumptions 1. Networks, a. Inside network is 10.1.0.0 255.255.0.0 b. Outside network is 123.123.123.120 255.255.255.248 c. DMZ network is 172.16.1.0 255.255.0.0 2. Interfaces, a. Inside Interface is 10.1.0.254 b. Outside Interface is 172.16.1.254 c. DMZ Interface is 172.16.1.254 3. The Web server in the DMZ will have the...