internet not working - think subnet mask on dsl router wrong
Posted on 2004-03-22
we have 32ips assigned with swbell w/ our dsl package and we subnetted it with 255.255.255.240 on all our pc's, which made 2 networks
network A usable ips: 220.127.116.11 - 18.104.22.168
network B usable ips: 22.214.171.124 - 126.96.36.199
188.8.131.52 and 184.108.40.206 are t1 routers which connect our two offices/networks.
220.127.116.11 is our netopia cayman dsl router in network A, which provides the internet for both networkA & B.
18.104.22.168 is our win2k server, and it hosts our exchange server, dns server, everything. the workstations are setup in office/network A as follows an example of 1 workstation:
our internet has died and i belive it is the cause of our dsl router
the dsl router ip which was updated from swbell is 22.214.171.124 w/ subnet mask of 255.255.255.248
am i correct in that the subnet mask is wrong and should be 255.255.255.240 on the dsl router?
please advise, and i will have it changed hopefully and see if this solves the problem.