Draytek Vigor2862 Series, User Manual

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Vigor2862 Series User’s Guide 267
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We cannot disable NAT on Vigor Router, but still, we may can use a public IP address on a host
behind Vigor Router. If our ISP allocates a block public IP addresses for us, then we may use
the public IP address with IP Routed Subnet or Routing Usage LAN.
Suppose ISP provides a public IP subnet 211.100.200.152/255.255.255.248 for us, and the
gateway IP is 211.100.200.158. The public IP addresses we can use are between
211.100.200.153 to 211.100.200.157. The following shows how to set up a non-NAT subnet so
that the server behind Vigor Router can use the public IP address 211.100.200.154.
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Go to WAN >> Internet Access and configure the WAN connection according to what ISP
provides. (Note: If it is necessary to specify an IP address manually, remember that subnet
mask for WAN interface should be larger than that of LAN interface.)
Now we have two methods to configure it
 IP Routed LAN