Cisco ASA 5500 – Reset / Recycle VPN Tunnels
KB ID 0000586 Problem I’ve been asked this before and it came up on EE today, basically you have a site to site VPN tunnel and you either want to restart it or reset it. Solution Cisco ASA Reset ALL VPN Tunnels 1. Connect to your ASA, then to reset ALL your ISAKMP VPN tunnels use the following command; clear crypto isakmp sa In the example below I’ve reset ALL my tunnels. I had a constant ping running across the VPN, and...
Cisco ASA to Juniper SRX Site to Site VPN
KB ID 0000710 Problem You want to establish a site to site VPN from a site with a Cisco ASA firewall, to another site running a Juniper SRX firewall. I had to do this this week, and struggled to find any good information to help. In the example below I’m configuring the whole thing from a laptop (172.16.254.206) that’s on the Juniper’s site. Use the diagram below, and substitute your own IP addresses and subnet...
Cisco ASA – Changing the Outside IP Address
KB ID 0001081 Problem I see this question get asked a lot on forums, most people never touch the firewall, ‘if it’s working leave it alone’. And that’s great until you move offices, or get a newer faster (or cheaper) Internet connection. What if you have lots of public IP addresses? What if you have VPN’s (or AnyConnect clients). What’s the best way to do this with a minimum of downtime? Note: If...