how to get all my machines connected
 

I've got a modem with 4 network sockets.

I used to use a router (i think that's what it's called), with 8 sockets so I could use more than
4 machines. One network lead went from the modem to the router leaving seven sockets for machines.

Since I've started GIMPS work again, the router seems to be broken. I can't get a machine to connect to the internet via it.

I've got no formal training with hardware. I've found my way by guesswork and a bit of common sense.

What aught I do? Can someone recommend a good long-term solution so I can get all my machines working?

Can you post a picture of the back end of your device and/or the make and model?

Quite an effort but I've managed it. I've got a phone now so perhaps I could have used that but I used my DSi Camera.

The first photo's what I called the router. modem rather


[URL]https://www.mersenneforum.org/attachment.php?attachmentid=19284&stc=1&d=1542413482[/URL]

[URL]https://www.mersenneforum.org/attachment.php?attachmentid=19285&stc=1&d=1542413493[/URL]

whoops


[URL]https://www.mersenneforum.org/attachment.php?attachmentid=19286&stc=1&d=1542413781[/URL]

Buy a new switch. :smile:

After a power outage I had more or less the same problem. The PCs that were connected to the modem had internet connection, but the ones connected to the switch didn't.


This is what helped for me:

- Power off your modem, switch and all the computers
- Power on the modem and wait for the boot to complete (sometimes takes a few minutes)-

- Power on the Switch (again wait a minute or so for it to get an IP/DHCP running)

- Then Power on the PCs


Hope this works for you.

[QUOTE=wildrabbitt;500372]I've got a modem with 4 network sockets.

I used to use a router (i think that's what it's called), with 8 sockets so I could use more than
4 machines. One network lead went from the modem to the router leaving seven sockets for machines.

Since I've started GIMPS work again, the router seems to be broken. I can't get a machine to connect to the internet via it.

I've got no formal training with hardware. I've found my way by guesswork and a bit of common sense.

What aught I do? Can someone recommend a good long-term solution so I can get all my machines working?[/QUOTE]


Personal advice: I never connect the machines directly to the modem, I use an ethernet switch in between, and maybe even a firewall in the chain.

[QUOTE=VictordeHolland;500385]After a power outage I had more or less the same problem. The PCs that were connected to the modem had internet connection, but the ones connected to the switch didn't.


This is what helped for me:

- Power off your modem, switch and all the computers
- Power on the modem and wait for the boot to complete (sometimes takes a few minutes)-

- Power on the Switch (again wait a minute or so for it to get an IP/DHCP running)

- Then Power on the PCs


Hope this works for you.[/QUOTE]


It is the PC that requests an IP address via dhcp, the switch is a passive component, unless you have a Layer 3 switch, but that is another story.

Thanks to everyone.

I take it what I was calling a router is actually an ethernet switch.

Is a firewall an physical device then?

[QUOTE=wildrabbitt;500409]Thanks to everyone.

I take it what I was calling a router is actually an ethernet switch.

Is a firewall an physical device then?[/QUOTE]


It can be a separate device, but commonly you can have a firewall software inside your router.

Is it generally what people do who do work for the GIMPS?

I've always felt fairly safe using only linux.

Most ISP issued modem/routers have a build-in (software) firewall.