Most of time, the remote end tunnel may be configured by a different engineer, so ensure that Phase-1 and Phase-2 configuration should be identical of both side of the tunnel. It would be helpful if we can use a common vpn template and exchange the Phase-1 and Phase-2 SA (security associations) information between both parties before setting up
Troubleshooting Phase 1 Cisco Site to Site (L2L) VPN To Troubleshoot and debug a VPN tunnel you need to have an appreciation of how VPN Tunnels work READ THIS. Now you have read that you are an expert on IKE VPN Tunnels 🙂 Step 1 . To bring up a VPN tunnel you need to generate some “Interesting Traffic” Start by attempting to send some traffic over the VPN tunnel. Step 2 See if Phase 1 has HELP!! Avaya VPN deskphone tunnel failure!! - Cisco Mar 04, 2018 IPSec VPN Negotiations - Phase 1 and 2 ~ Peter Manton The Phase 1 and Phase 2 configurations must match for the devices on either end of the tunnel. Phase 1 Negotiations In Phase 1 negotiations, the two peers exchange credentials. The devices identify each other and negotiate to find a common set of Phase 1 settings to use. When Phase 1 negotiations are completed, the two peers have a Phase 1
VPN Tunnel Phase 2 (IPsec) Fails
ASA VPN | How I Troubleshoot ASA VPN Connection Problems
Correct, the Phase 1 algorithms have only an impact on connection setup and rekeying but not on the IPsec tunnel throughput, which, as you mention, is only affected by the Phase 2 algorithms. The performance of the authentication during Phase 1 is not influenced by these algorithms, though, because it only depends on the kinds of secrets that
IPSEC Phase 1 and Phase 2 is up but return traffic not IPSEC Phase 1 and Phase 2 is up but return traffic not observed on Fortigate Hi, Issue is as above. Peering firewall is a Cisco Firepower. Site A - FW A (Fortigate)