Member Avatar for saudalam2009

dear
i have configured class b ip in our lan which starts from 129.129.1.1 and subnet mask 255.255.0.0
and d/g 129.129.1.33 which is link sys router for accessing internet.i have following doubt
1. above class ip and subnet is ok for class b. 2.first range is full then i assign another range (129.129.2.1) like : 129.note:- range of class B 129.129.1.1 TO 129.129.2.1 not communicating each othere 129.2.1 255.255.0.0 129.129.1.33,where as both are in the same class.
3.on linksys router it is given limited subnet mask which belongs to class c
eq:- 255.255.255.0/255.255.255.128/255.255.255.240 etc.
there is no class be subnet.

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Member Avatar for JorgeM

i have configured class b ip in our lan which starts from 129.129.1.1 and subnet mask 255.255.0.0

First... if you are on a private LAN, you should not use a random IP range. 129 is within the public range. If you assign these addresses within your network, no one on your network will be able to access public resources that have this IP address because your hosts beleive that the 129 is local, therefore there is no reason to send those packets out of your network.

i really dont understand the rest of your question. You should consider re-IPing your internal netowrk using a range within the private IP scheme.

 10.0.0.0        -   10.255.255.255  (10/8 prefix)
 172.16.0.0      -   172.31.255.255  (172.16/12 prefix)
 192.168.0.0     -   192.168.255.255 (192.168/16 prefix)
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