I am new to networking. I searched around for similar posts but did not readily find one. I have a cable modem connected to a Linksys BEFSR41 router. I have three PCs on the LAN side. DHCP is enabled and all PCs get their IP addresses automatically. First off is this true or false: 192.168.1.100 == 192.168.1.1 If it is true then why is the IP address of one of the PCs always the same as the router? The other two are 192.168.1.101/ 102 respectively but it seems that for the first PC is not behind the router? If 192.168.1.100 == 192.168.1.1 is false then it makes sense that all PCs are being given different IP addresses behinds the router on the LAN side. Thank you. whoami

The numbers 1 and 100 are indeed different. Therefore answering your question regarding whether or not those two IPs are equal. Life is more painless for those who are brainless.

The two host addresses are not same. It looks like a bug that an IP that is in use will be assigned by DHCP. On your router/DHCP Server, you should be able to specify the range for IPs that are given out as DHCP addresses. Thanks.

If I remember correctly, by default, Linksys uses 192.168.1.1 for the router. Your DHCP scope is likely to be 192.168.1.100 - 199. All clients will get IP's between (and including) 100 to 199.

In other words check you dhcp scope of your router. If one of the pcs is getting .1 then the dhcp scope is .1 to whatever. Should be, as CurtR points out, .100 to .199 Knowing the correct answer and giving a correct answer, are two different things