Total newbie question here. I have a regular Netgear router (COTS) that I am trying to configure to increase the number of LAN IP addresses. Typically, the LAN is setup as follows.
- IP Address: 192.168.0.1
- Subnet Mask: 255.255.255.0
This setup is great, because I can theoretically get 253 devices hooked up to my router via DHCP. However, I'm hosting an event and might need more about 300 devices (or more) to be serviced. I then changed my LAN setup as follows.
- IP Address: 192.168.0.1
- Subnet Mask: 255.255.254.0
According to this IP calculator, I can get 510 hosts.
- HostMin: 192.168.0.1
- HostMax: 192.168.1.254
I then take 2 Windows computers, and
- set up one computer,
A
, to be 192.168.0.2 and - the other,
B
, to be 192.168.1.2.
In the GUI, here's the settings for A
.
- IP Address: 192.168.0.2
- Subnet: 255.255.254.0
- Gateway: 192.168.0.1
Here's the settings for B
.
- IP Address 192.168.1.2
- Subnet: 255.255.254.0
- Gateway: 192.168.0.1
Typically, I would let DHCP dish out the IPs, but in this case, I was just testing to see if A
could ping B
(on another note, the router can only dish out IPs in the 192.168.0.2 to 192.168.0.254 range, but that might come down to a separate but related DHCP server issue).
A
can ping the router at 192.168.0.1, and B
can also ping the router. However, A
and B
cannot ping each other. Why is this and how do I get A
and B
to see each other?
10.0.0.0/23
? The "router" should only be operating as a switch between the hosts, so can largely be ignored, though it is odd thatA
andB
can both ping the router, but not each other.255.255.254.0
essentially joins the192.168.0.0
subnet with192.168.1.0
so your appreach is correct. However, it is worth noting that I've found many networking devices throughout my career that does not support anything but /8, /16, or /24 bit netmasks, and that could be the case here. Try setting your netmask to255.255.0.0
and test. Also, have you verified on the computers that the netwosks they get from DHCP are in fact255.255.254.0
?