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Network/Subnetting

Network/Subnetting

Network/Subnetting

(OP)
Is 255.255.255.255 a valid subnet mask issued by an ISP? /the also say that if they issue this subnet mask no gateway is required!

RE: Network/Subnetting

It isn't that a gateway isn't required. It's that a /32 mask can't have a gateway. Traffic has to be routed.

RE: Network/Subnetting

(OP)
What about the fact that the IP number is a class c and the subnet is a class d.
IP no: 209.181..
S/N: 2550.255.255.255
No Gateway-
The router is a Cisco Linksys E2500 Class C router...

RE: Network/Subnetting

IP 'classing' hasn't really existed for the Internet routing since 1993 when CIDR (Classless Inter-Domain Routing) was introduced by the IETF (Internet Engineering Task Force) for IP (Internet Protocol) routing.

A netmask of 255.255.255.255 (a 32 bit map) can connect every possible IPv4 address so is technically NOT a 'subnet mask' more on subnet masks.

You also might want to have a look at the Data Transmission Forums for more info as well.

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.
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