Knowledgebase: Internet Access (WAN)
I have leased a block of public IP Addresses from my ISP. How do I configure my router to use them?
Posted by on 15 December 2011 02:50 PM

Your router MUST already have a static IP Address for your main ISP connection. Usually the block of additional addresses will be numbered quite differently from your base IP Address

Note: The first and last IP Addresses in the block are un-usable. Thus if you lease a block of 8 IP addresses only the middle 6 are available to be used. For example if your ISP specifies the IP address block of 210.243.151.176/29, the list of allocated IP addresses is:

210.243.151.176                Subnet Address

210.243.151.177               

210.243.151.178               

210.243.151.179               

210.243.151.180               

210.243.151.181               

210.243.151.182               

210.243.151.183                Broadcast Address

 

The following steps will show you how to configure your Vigor router to enter two of the IP addresses

 

a)    Add 210.243.151.179, 210.243.151.180 into IP Alias of Internet Access.

Internet Access

 

 

b) We could view these IP addresses on NAT Setup/DMZ or Open Ports.

Internet Access

 

If you can get a range of public IPs via PPPoA/PPPoE or MPoA, you can enable 2nd subnet to let PCs with public IP to access internet behind Vigor router. Please set one of the public IPs and their subnet mask as below. Then you can set one of the static public IP to a PC on LAN.

Internet Access

 

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