Dec 22, 2015
But the VPN did not come back up, even after rebooting the remote MX-67W. In Cisco ASA-land, this would be resolved by "clear crypto isakmp sa
The Cisco ASA is often used as VPN terminator, supporting a variety of VPN types and protocols. In this tutorial, we are going to configure a site-to-site VPN using IKEv2. IKEv2 is the new standard for configuring IPSEC VPNs.
A VPN gateway is composed of two VM instances running in an active-standby configuration. When you reset the gateway, it reboots the gateway, and then reapplies the cross-premises configurations to it. The gateway keeps the public IP address it already has. This means you won’t need to update the VPN router configuration with a new public IP SHOW HIDDEN PASSWORDS IN CISCO ASA OR ROUTER - Niktek Dec 22, 2015 CCIE Security: Troubleshooting Site-to-Site IPSec VPN with
Option 2: Clear/set the Don't Fragment bit. Path MTU discovery requires that all TCP packets have the Don't Fragment (DF) bit set. If the DF bit is set and a packet is too large to go through the tunnel, the ASA drops the packet when it arrives.
Cisco ASA - Remote Access VPN (IPSec) - YouTube Feb 04, 2013 Chapter 10 Configure AnyConnect Remote Access SSL VPN Mar 01, 2010 How to Recover a preshared key of IPSEC VPN on Cisco ASA tunnel-group 18.104.22.168 ipsec-attributes pre-shared-key * The problem arises when you forget the pre-shared key after a few months and you want to change one of the VPN tunnels. This situation happened to me recently when I had to change the public IP address on one of the ASA sites which had a Lan-to-Lan tunnel with a second ASA.