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Webcast-Catalyst9k
New Member

difference in broadcast

Hi

I have 3 network

1.172.16.10.0/255.255.255.0

2. 192.168.50.9 255.255.255.248

(Broadcast address 192.168.50.15)

3.192.168.10.0 255.255.255.0

(Broastcastaddress:255.255.255.255)

so it is difference between

192.168.50.15, 255.255.255.255 ?

I know two are broastcast address but difference ?

192.168.50.15 it is multicast ?

thanks

Biplob

now

5 REPLIES

Re: difference in broadcast

NO, for 172.16.10.0/255.255.255.0 broadcast is both 172.16.10.255 and 255.255.255.255 router will see both as broadcast. 172.16.10.255 is broadcast to all device in subnet 172.16.10.0/24 and will treat the packet as if it's 255.255.255.255. 255.255.255.255 does not get forwarded by the router to other subnets, so in that sense they are treated the same way. This is the same for

2. 192.168.50.9 255.255.255.248

(Broadcast address 192.168.50.15)

and

3.192.168.10.0 255.255.255.0

(Broastcastaddress:255.255.255.255)

so you asked:

so it is difference between

192.168.50.15, 255.255.255.255 ?

The answer in routers point of view there is no difference, they are both boradcast.

And no broadcast address for a particular subnet is not multicast.

Re: difference in broadcast

HI Biplob,

192.168.50.15 is a broadcast address for that particular subnet (subnet address is 192.168.50.8) .

A special type of IP address is the limited broadcast address 255.255.255.255. A broadcast involves delivering a message from one sender to many recipients. This broadcast is 'limited' in that it does not reach every node on the Internet, only all nodes on the LAN.

No 192.168.50.15 is not a multicast address. The full range of multicast addresses is from 224.0.0.0 to 239.255.255.255.

HTH, if yes please rate the post.

Ankur

New Member

Re: difference in broadcast

HI

My confusion is that

If I ping 192.168.50.15 then broadcast to range of ip 192.168.50.9-14

but if i ping 255.255.255.255 ( all node?)

if i want same time packet all the node then which are address ?

Thanks

biplob

Re: difference in broadcast

Hi Friend,

Yes if you ping 192.168.50.15 then the broadcast will be send to range of ip 192.168.50.9-14.

But if you ping 255.255.255.255 it means all nodes.

What exactly you want to achieve?

Regards,

Ankur

New Member

Re: difference in broadcast

Hi Biplob,

See one difference is there.

Router is a device which do not forward the broadcast by default.

If you have 250 computers in your network, then you can go for a sinle class C address,but if you want to segment the network you need subnetting. If you subnetted your network then to pass from one subnet to another subnet you need the help of routers.

Now if you want to send the broadcast to all the 250 computers in a subnetted enviroment it is not possible.so that,s why each subnet has different broadcast address. If you want to broadcast to each subnet you have to send the broadcast on the broadcast address of subnet inspite of flooded broadcast (255.255.255.255).

Hope it helps....

Rate the post if find it useful....

Thanks

Mahi

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