How to ping a modem

You wouldn't be pinging a modem. You would be pinging a gateway or router. Most modems don't have an IP address, because they are no more than a dumb bridge between the ISP and your home network. Some modems have a built in router and gateway function. I have seen some PPPOE modems that are a gateway, but I always leave set it to bridge mode and leave that for the router to do.

192.168.1.100 and 192.168.1.101 could be anything on a network. DHCP could be configured to start at 192.168.1.100 and end at 192.168.1.150.

In most cases you can't ping a modem. You can ping a router or gateway with a WAN or LAN address. The best way to ping a gateway is to type ipconfig in Windows read the gateway address and then ping <gatewayaddresshere> or ifconfig in Linux read the gateway address and then ping <gatewayaddresshere>
 
You wouldn't be pinging a modem. You would be pinging a gateway or router.

Exactly and to add to the confusion of the OP's post, in my experience its usually 192.168.1.1 , the .100 or .101 produces nothing on the routers FIOS gives out.

All of this is network 101, heck maybe network 100 :p
 
It depends on the modem. Some ISPs' modems will double as a router and, around here, one of their older models did have a single port out but also had a login page on which you would provide your login/password. It would have its own IP.

But, as Jimbo stated, this would still always have a 192.168.0-2.1 address.
 
I dont know if you are actually pinging the "modem".

What I mean is that the protocol that sends a ping should be wrapped at the modem level as it has to pass the data to the downstream modem and then be unwrapped at the layer where you do tcp/ip. I think ALL modems that pass TCP/IP AND have no other router/bridge connected actually have some kind of router/bridge/whatever in them to pre-process before they hit the modem itself (in the same chassis).

Its like in the old days of dialup. If you were going to download a file you would use a protocol like Xmodem or Zmodem, that would then be wrapped in a transport protocol like PPP and then at the modem be wrapped again at the modem with something like MNP. As it traverses the telco it might be wrapped and unwrapped again with their protocols until it gets to the destination and then its unwrapped from the modem (MNP) protocol then unwrapped to the PPP protocol then finally the Xmodem/Zmodem. As protocols wrap another, the inner protocol can no longer talk to or sense anything outside what its "wrapped" in and can only ride along unaware of its handling until it is unwrapped and presented to its own corresponding protocol layer.
 
Err, this falls under basic networking 101.

To ping many of the Motorola Surfboard Modems (5100 series for sure) it will be 192.168.100.1.

There is also a web based interface for basic signal diagnostics and to restart the modem if its not near by.

Thank you for the insight though.

__________________

To the OP I think this is a manufacturer/model dependent feature. It should be noted that it does NOT matter if its a dumb cable modem or combo router unit they all Motorola modems have some kind of web interface that you can ping. This will different than the default gateway interface.

attachment.php
 

Attachments

  • Capture.jpg
    Capture.jpg
    29.8 KB · Views: 1,399
Last edited:
To ping your modem is it always...

ping 192.168.1.100

Or with some modems is it sometimes....

ping 192.168.1.101

I don't see where your question is. And as others noted above...it is not "always" to those 2 IP addresses that you listed Matter of fact..rarely does the last octet end in .100 or .101...for the "modem"....those are more commonly the beginning addresses of leases from the internal DHCP service. Internal management addresses of "modems" are more typically ending in .1 or .254...
 
i think the term you are all looking for is either 'managed' or 'unmanaged' if it has an IP its 'managed'.

Cant help but think the OP is having a windup though, his post count doesn't correlate with a question like that.
 
Back
Top