Troubleshoot if you have site to site VPN issue

Zyxel_Kevin
Zyxel_Kevin Posts: 897  Zyxel Employee
Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 500 Comments

Scenario:

Assuming the Tunnel built successfully but there are some traffic/unstable/disconnecting issues.

Checking:

1)Reauth action must ahead of Rekey, Please check phase1 lifetime greater than phase2.

2)Recommend to use ikev2 beacuse it implements a more complete rekey mechanism to prevent tunnel reconect.

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