Strange network connectivity problem
- by Marc
Here is my network connectivity:
cable modem
|
|(WAN)
wrt54g (default gateway, 192.168.1.1) -- earth
|(LAN)
|
Simple Switch1
| |
| |
| SimpleSwitch2- neptune
| | |
| mars mercury
|
|- venus
|
|- laptop
|
saturn (Windows AD DC)
simpleSwitch2 was hanging off the wrt54g. I moved it to SW1 during troubleshooting. Nothing described below was any different.
earth is connected via wireless to the wrt54g.
I can ping from laptop to mars, neptune & mercury.
I can ping from earth to venus, saturn & laptop.
However, pinging mars, mercury or neptune from earth gives the following result.
Pinging mars.XXX.XXX [192.168.1.105] with 32 bytes of data:
Reply from 192.168.1.122: Destination host unreachable.
Reply from 192.168.1.122: Destination host unreachable.
Reply from 192.168.1.122: Destination host unreachable.
Reply from 192.168.1.122: Destination host unreachable.
Ping statistics for 192.168.1.105:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
.122 is the address of the machine from which I am pinging.
earth is a Vista machine. Windows firewall is off.
saturn is my DNS & DHCP server.
Can anyone give me any ideas what the h*ll is going on? Clearly the topology is a factor
And yes, I am a space geek.