IPSEC Phase 2 Duplicate Causes VPN Tunnel to get stuck

Before you start: We are looking at phase 2 problems, MAKE SURE phase 1 has established! Petes-ASA> Petes-ASA> en Password: ******** Petes-ASA# show crypto isakmp IKEv1 SAs: Active SA: 1 Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey) Total IKE SA: 1 1 IKE Peer: 234.234.234.234 Type : L2L Role : responder Rekey : no After the above check and validation, Now If you have both phase 1 and phase 2 successful established and vpn tunnel is reported as up. Ensure traffic is passing through the vpn tunnel. Initiates some traffic (ICMP Traffic ) from inside the host or run packet tracer from firewall to originate traffic to bring the phase-2 up and see the Packet Solved: I have a phase 2 mismatch I cannot sniff out, please help! Below are the relevant configs. ASA cisco 891F router using site to site vpn settings. I have the crypto maps applied on the outgoing interfaces and PHASE 1 works fine, phase 2 fails Troubleshooting VPN Tunnel up but no or intermittent traffic. Traffic not passing through the site-to-site VPN tunnel; (Phase 1 and Phase 2)" IKE Initiator: No

What is IPSec VPN PFS Perfect Forward Secrecy – IT Network

SRX Series,vSRX. IPsec VPN Overview, IPsec VPN Topologies on SRX Series Devices, Comparison of Policy-Based VPNs and Route-Based VPNs, Understanding IKE and IPsec Packet Processing, Understanding Phase 1 of IKE Tunnel Negotiation, Understanding Phase 2 of IKE Tunnel Negotiation, Supported IPsec and IKE Standards, Understanding Distributed VPNs in SRX Series Services Gateways , Understanding Phase 2 Parameters. IKE Phase 2 negotiates an IPSec tunnel by creating keying material for the IPSec tunnel to use (either by using the IKE phase 1 keys as a base or by performing a new key exchange). The IKE Phase 2 parameters supported by NSX Edge are: Triple DES, AES-128, AES-256, and AES-GCM [Matches the Phase 1 setting]. SHA1, SHA_256.

Setting VPN IPSec tunnel with Fortigate – SOC Level 1

Dec 31, 2014 · The purpose of IPsec (phase 2) is to negotiate and establish a secure tunnel for the transmission of data between VPN peers. Without a successful phase 2 negotiation, you cannot send and receive traffic across the VPN tunnel.