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broadcast address

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3 replies

by owen_cktai

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hi all

I dun know important of the broadcast address.
the broadcast address is use for send a message to network instead of one PC

if i have two pc , i set the
route = 192.168.1.254/27
first pc ip address = 192.168.1.1/24
second Pc ip address= 192.168.1.1 /25

Means each device have different broadcast ip address. Is that have any problem? i still can go to internet. please explain and let me know is different broadcast address in a network device is important

3 replies

by seanferd

192.168.1.1 But this part should not be the same for both machines. IP on each machine must match IP for that machine on the router.

Other folks may have more detailed suggestions for you.

If this is wireless, and you mean SSID, do not broadcast at all. Just assign addresses. This should take place automatically during router setup, anyway.

by danwa

An IP address consist of two parts; a network portion and a node portion. The subnetmask (sometimes written with a slash) will tell you which part is the network portion and which part is the node portion.
With a subnet mask of /24 the first three groups are the network(192.168.1) and the last group is the node portion (1).
You cannot assign identical net portions and node portions if the two PCs are on the same network without geting problems sooner or later.
Different subnetmasks like /24 and /25 means that PC2's broadcast won't reach PC1. If a broadcast does not reach the intended device, direct communication between PC1 and PC2 is not possible. A router would be needed to route trafic between the two hosts because a switch won't suffice(a switch can't forward traffic between different nets). If you're only concern is to access Internet, you might get away with your setup. Assigning different node portions, like .1 and .2 would be an improvement and considered good practise.

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