![]() On both VPN peers, run the below command(s) via CLI Navigate to Network > IPSec Crypto Profile > edit IPSec Crypto Profile > edit DH Group This DH Group mismatch in Phase 2 (IPSec Crypto Profile) won't be visible in a packet capture (unless pcap is manually decrypted), so it is best to just use CLI commands / checking both sides' configurations manually to identify and resolve this mismatched configuration.>less mp-log ikemgr.log showing "transform ID doesn't match: my DH20, peer DH14" (requires ikemgr on debug logging level).>less mp-log ikemgr.log showing "received Notify payload protocol 0 type NO_PROPOSAL_CHOSEN".>less mp-log ikemgr.log showing "INVALID_KE_PAYLOAD".>less mp-log ikemgr.log showing "received KE type 14, expected 20".CLI show command outputs on the two peer firewalls showing different DH Group algorithms (Example: DH Group 14 vs.no suitable proposal found in peer's SA payload." System Logs showing "IKEv2 child SA negotiation failed when processing SA payload.System Logs showing "IKEv2 child SA negotiation is failed received KE type %d, expected %d". ![]()
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