Cable modem from Charter

[mgerics]

Yes, I'm finally in the 21st century - I have high speed internet from Charter! But...
Was on dial-up (yuck!) using a D-Link 704-P router;the modem plugged into the back of the router, dialed out on demand, and everyone could use the internet ('use' being relative term for two machines trying to access the web at <56k...).
Of course the Charter guy plugged directly into pc from the modem - only one Cat5 connector on it , so I dropped it into the in port of the D-Link, plugged the pc into a port, and works great!
But, the Amiga can't see the internet now, nor can it see the other machine.
Original setup was each machine had a static IP, but the tech changed the pc to be dynamic.

So, using an Ariadne-II,  and Genesis, how can I get the Amiga up on the 'Net?

On Amiga, tried dynamic ip and a few other things, but no go. Anyone do anything similar? Do you have anything set up for name resolution, destination, etc in either Genesis or on a router?

Thanks in advance.

[Piru]

[EDIT]Removed some crap after rereading the original post[/EDIT]

Hm hm, it sounds like you need to reconfigure the D-Link router to get it working properly.

Unfortunately I have no experience with D-Link 704-P, but surely it should be able to handle DHCP from the cable, and static IPs for the LAN... I guess it's time to consult the D-Link manual or something :-) Keywords to look for: IP MASQ, NAT.

Once you get this going, you should be able to turn off the DHCP from the PC again (if desired).

[stopthegop]

Charter will only allow one Mac address at a time connected to the cable modem.  They want you to pay extra for other "PCs" to share the connection.  You have two choices:

1. Unplug power to the cable modem, clearing your PCs MAC address from the cable modem's NVRAM.  Then plug in the Amiga and power up the modem again.  You have to do this each time you want to switch computers.  Needless to say, this solution sucks.  The other option is to do what I did and...

2. Invest $54.99 in a Leviton cable modem router.  Dlink also makes one, but the Leviton is much better because it works right out of the box and requires no software.  The Dlink will work, but you have to configure it manually through it little embedded web server to make the Amiga work with it.  The address of the Dlink's config page is 192.168.1.1.   The leviton router can be found at big hardware stores, usually.. (Home Depot, etc.).  The Dlink is about $45 at Radio Shack.  Of the two, I strongly recommend the Leviton.  

[Piru]

Err, so that D-Link 704-P router isn't a router at all?

MAC addresses do not pass thru routers...

Anyhow, any decent router can do NAT, which nicely solves the problem.

[stopthegop]

MAC addresses do not pass thru routers...

Did I say otherwise?

[Piru]

@stopthegop

Oops. Right, you propose dropping the d-link there.

Yet, isn't this router a router? If not, what is it, a switch?

[stopthegop]

I think the Leviton would be more accurately described as a switch because it does not require setting up such things as hostnames, host IPs, DNS servers, etc.  With the D-Link (hub/router/switch/whatever..), you have to set these values manually for each host via its embedded web page.  The Leviton, on the other hand, isolates the various host MAC addresses from the cable modem so the cable modem thinks its only talking to a single MAC address (the one belonging to the "switch").  All the packet switching is done "below" any IP addressing.  Is this not what makes a switch a switch?

[Piru]

The Leviton, on the other hand, isolates the various host MAC addresses from the cable modem so the cable modem thinks its only talking to a single MAC address (the one belonging to the "switch"). All the packet switching is done "below" any IP addressing. Is this not what makes a switch a switch?

No. Switches pass the mac address along. In fact, switches keep some lookup-table of the 'mac address vs port' correlation, that way the traffic is unicast, it can send the packet to the correct port directly. Multicast ethernet things (such as ARP discovery) are obviously sent to all other ports.

Hub on the other hand just clones the sent packets to all other ports (making them slower than switches).

Higher level things such as NAT require more intelligent and complex hardware: a router.

[mgerics]

Well, I don't mind setting up what I can - there are options for cloning MAC address, etc. on the router's administration page. I'll fiddle some more. Oddly, while playing around with the settings and rebooting the router as required, the pc NEVER lost connection...