Vpn Passthrough - ZyXEL Communications LTE3316-M604 User Manual

The following table describes the labels in this screen.
Table 53 GRE: Add
LABEL
Name
Enable
Remote IP
TTL
Key
Keep Alive
Tunnel IP
MTU
Remote Subnet
Back
Cancel
Apply

18.6 VPN Passthrough

Use this screen to allow VPN traffic through the Zyxel Device. Click Configuration > Application > VPN >
VPN Passthrough to open the following screen.
Figure 74 Configuration > Application > VPN > VPN Passthrough
Chapter 18 VPN
DESCRIPTION
Enter a name for this GRE tunnel, this name must be 1~9 characters long.
Select this to enable the GRE tunnel.
Specify the IP address of the remote gateway to which this interface tunnels traffic.
Specify the Time To Live (TTL). This is a time limiter that defines the lifetime of a
packet. Every time the packet is forwarded, it will reduce the TTL value by 1, if this
time limiter reaches 0, the packet will be discarded. The default value is 255.
This displays the key for the GRE connection, a value between 0 ~ 9999999999. The
GRE tunnel will request this key for packet transportation. The client needs to enter
this key to authenticate the source of the packet.
The Zyxel Device can send periodic keep alive frames, so the GRE tunnel does not
go down. Specify how often these frames are sent in second(s) to keep the GRE
tunnel up.
Specify the IP address to use as the source address for the packets this interface
tunnels to the remote gateway. The remote gateway sends traffic to this IP address.
Maximum Transmission Unit. Type the maximum size of each data packet, in bytes,
that can move through this interface. If a larger packet arrives, the Zyxel Device
divides it into smaller fragments. The default value is 2000.
Enter the remote subnet mask to which this interface tunnels traffic.
Click Back to return to the previous screen without saving.
Click Cancel to exit this screen without saving.
Click Apply to save your changes back to the Zyxel Device.
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