Advantek Networks ABR-241H User Manual page 27

Subnet Mask: Enter the subnet mask of the router.
ISP Gateway Address: Enter the gateway address at ISP end.
MTU: This is optional. You can specify the maximum size of your transmission packet
to the Internet. Leave it as it is if you to not wish to set a maximum packet size.
Does ISP provide more IP address: If your ISP supports more IP addresses,
please click Yes; otherwise, leave it unchecked.
DNS
Domain Name Servers are used to map an IP address to the equivalent domain
name (e.g.www.waveplus.com). Your ISP should provide the IP address for one or
more domain name servers.
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