When the site to site VPN traffic cannot reach Peer’s LAN

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Zyxel_Kevin
Zyxel_Kevin Posts: 981 image  Zyxel Employee
Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 500 Comments
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Symptom:

192.168.8.0/24 can’t access 192.168.9.0/24

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Checking:

1)The policy of Any to ZyWALL have allowed ESP service and also allow AH if you it. Please ensure there are no deny rules above it.

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2)VPN -> IPSec VPN -> VPN Connection , please check you have set zone. If you have customize zone, please remember to add additional security policy.

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3)If the above doesn’t help, please try replacing ESP to AH and contact Zyxel Support for further investigation.

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