07-01-2019 01:11 AM - edited 02-21-2020 09:15 AM
Hi Guys
I am running into some issues activating a VPN on my cisco asa 5508, when trying to add the below command:
"crypto ikev2 enable outside"
I get the following errors:
ERROR: Failed to open "udp/localized/2/500"
ERROR: Error opening IKE port 500 on Interface outside
Any help please
03-15-2023 08:32 PM
How did you solve this problem?
03-16-2023 09:43 AM
It usually occurs when an existing connection through the firewall is already using udp/500.
We often see that when there is a device internal to the network also running IPsec VPN through the firewall. PAT will use the original udp port as long as it's not already allocated.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide