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Home > Forums > Data Transmission > Data Transmissions > Ethernet Forum

Ping question

thread586-1657796
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bnorton916 (Programmer)
13 Aug 11 15:29
If I have two hosts connect to the same switch. No vlans or anything funky going on. One ip address 192.168.1.100/24 the other is 192.168.10.200/24

So I thought you had to have a router or layer 3 switch for these things to communicate.

I thought the host would look at the subnet mask and figure out the host is not on the same network and therefore send the ping to the default gateway. The default gateway is not setup.

But they do indeed ping each other.

This is done in a simulation so is the simulation wrong or am I?

If no one answers I will be setting this up use wireshark and let everyone know.

Bill


 
muckermucker (IS/IT--Management)
13 Aug 11 16:34
the simulation is wrong. As you said it will forward the packets to the default gateway. If you are saying there is no gateway IP set up yet then the packets should be discarded.
bnorton916 (Programmer)
13 Aug 11 17:39
The default gateway is setup in the host config, but the default gateway is not "alive" yet.

Glad to hear you agree with me. smile

Bill
 
VinceWhirlwind (TechnicalUser)
14 Aug 11 21:27
What is the IP configuration of the switch? Maybe it is routing after all. Maybe your subnet masks are not set to /24 as you think.
bnorton916 (Programmer)
15 Aug 11 9:35
Switches have not been configured at all.

subnet masks are /24  
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