How to Enable NAT Traversal in H Series Devices for IKEv1?
Zyxel_Kevin
Posts: 934 
Zyxel Employee
Zyxel Employee
How to Enable NAT Traversal in H Series Devices for IKEv1?
When setting up IKEv1 on H Series devices, you may notice options for NAT Traversal (NAT-T) Are they enabled by default, or do they require configuration?
Answer:
In H series, NAT Traversal is enabled for IKEV1 default.
You can also enable "UDP Encapsulation" to encrypt ESP as udp 4500
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