After ISP failover on LSV (Large Scale VPN) peer, gateway keeps using the old MSPI

Support Center > Search Results > SecureKnowledge Details

Technical Level

Solution ID	sk108388
Technical Level
Product	Quantum Security Gateways
Version	R77.30 (EOL), R80.10 (EOL), R80.20, R80.30, R80.40
Date Created	27-Oct-2015
Last Modified	15-Oct-2020

Symptoms

When the LSV peer experiences the interface failover, it will eventually re-negotiate IKE Main Mode with peer Gateway.
After the IKE negotiation completed, new connection passes through the tunnel, but old connections are still sent to the old IP address of the LSV peer.

Kernel debug shows the drops:

   [-- request_ipsec_sa: Renew (outbound) SA --];
[DATE TIME]...;add_to_MSPI_requests_table_ex: Entering keyid 0;
[DATE TIME]...;add_to_MSPI_requests_table_ex: Already have this connection;
[DATE TIME]...;request_ipsec_sa: Trap is on the way. not trapping;
[DATE TIME]...;VPN-1: vpn_encrypt_chain: encryption failure, dropping packet;
[DATE TIME]...;fw_log_drop_ex: Packet proto=1 192.x.x.x:0 -> 10.x.x.x:16397 dropped by vpn_encrypt_chain Reason: No error;

Solution

Note: To view this solution you need to Sign In .