Broadband Cable and Airport Networking 1

[macgeneral]

..preferably answered by one who's actually runnning this config..

Road runner cable incoming through their leased cable modem.

...to an Airport Hub (single ethernet)

.. networking a desktop PowerMac (Cat5) and an iBook (802.11 wireless)...

Anyone with specifics on the uploaded config to the base station???

I've read the Apple TIL on this sort of thing but can't get the Airport hub to share the connection. It's a configuration issue with the Airport.

Mostly care about the laptop.

Wire cable modem to hub to airport and desktop?
really just need the config for the Base Station. Distribute IP's???

macgeneral
macgeneral@mac.com

 

[DaveGoTech]

This config should work. Make sure you "reset" the base station (button on bottom) and have entered the ISP info correctly into the base station.

 

[macgeneral]

I have reset the base station on several occasions according to Apple specs.

My quandry is the detail in the NETWORK tab of the Airport Admin Utiity for the Base station.

Am I checking off DISTRIBUTE IP addresses and if so what other radio buttons or check boxes am I enabling?

None of the configs seem to be working for me.

 

[pcorchary]

Ok ... not too hard ... I have the same thing except ATTBI (formerly @Home). First a couple questions:

1) Are you using a static IP, or DHCP Ip from RR (do NOT post your real IP address in this or any other forum).

2) can I correctly assume that you want to use the Airport as a NAT for *BOTH* the devices on your Ethernet LAN, and on your Airport 802.11 network.

For instance, I have:

ATTBI = IP 123.45.67.189 ------> into [SWITCH]
('real' IP)

[SWITCH] ----- Airport bridge
| --------- iBook ip 10.1.1.10 (wireless)
| --------- iBook ip 10.1.1.11 (wireless)
| --------- 8500(G3500) ip 10.1.1.12 (enet)
| --------- iMac ip 10.1.1.13 (enet)
| --------- iMac ip 10.1.1.14 (enet)
| --------- PC/Linux ip 10.1.1.15 (enet)
| --------- printer ip 10.1.1.16 (enet)

All of those devices are set to DHCP to get their address dynamically from the Airport, both on Wireless and on LAN.

Let me know if this is what you're trying to achieve, and I'll help you with the configs.

Also, what version of the AirPort software do you have, and what OS (OS0 or OSX).

HTH.

 

[macgeneral]

Wow great feedback!

Looks like I'm getting a static IP from Road runner.
I wouldn't DARE post it, but thatnks for the warning

I do in fact want to run NAT off the Base Station and surf with an iBook wirelessly (running 9.1) and a G3 running X 10.1 via ethernet.

So
Cable to Cable Modem
Cable Modem to Switch
Switch to Base Station
Switch to Ethernet device(s)

Configuring the Base station is reaally the sticking point. I'd have to reset the setting then cross cable into it...you have details on the Base station set up to share with me??

MacGeneral

 

[macgeneral]

Wow great feedback!

Looks like I'm getting a static IP from Road runner.
I wouldn't DARE post it, but thatnks for the warning

I do in fact want to run NAT off the Base Station and surf with an iBook wirelessly (running 9.1) and a G3 running X 10.1 via ethernet.

So
Cable to Cable Modem
Cable Modem to Switch
Switch to Base Station
Switch to Ethernet device(s)

Configuring the Base station is really the sticking point. I'd have to reset the setting then cross cable into it...you have details on the Base station set up to share with me??

MacGeneral

 

[torner]

I have a similar set-up w/ Adelphia:

CABLE MODEM
//
ROUTER: Linksys 4 port 10/100
//
AIRPORT (1 ENet) and AIRPORT (2 ENet)

I also have an 8 port dumb hub and Compaq PC attached to the Linksys and a Farallon ATalk to ENet adapter for my HP LJ5MPattached to the dumb hub.

The Linksys does the NAT. The AirPorts are set to pick-up DHCP (from the Linksys).

I prefer the Linksys 'router' to the new AirPort because it allows me to 'spoof' the MAC address reported to Adelphia. I connected with Adelphia before I had my Linksys router so they registered the MAC address of the PowerBook G3 I was using at the time. Once I got the Linksys, I was able to pop in the MAC of the PBook G3 and keep on going without having to call Adelphia. If the AirPort dies, I would have to report the MAC address of the replacement. With the Linksys, I'd just pop the old MAC in the replacement unit.

All 3300 sq ft of my house (and immediate yard around the house) is covered by 802.11b.

Hope this helps!

 

[skymut]

I just resolved the same issue with the airport and a leased cable modem (toshiba) from cox communications. My problem had to do with the fact that cox was handing out the ip config via dhcp, and according to their manual, you could just plug in any ethernet device (configured for dhcp), and it would receive the config info. It wasn't working. The only ethernet device that could get the ip config info was the ethernet card on my desktop pc - the first device on my home network to connect to the internet via the cable modem.

I discovered that when the cable modem first powers up, there is a binding of the FIRST (on my network) mac address and the dhcp server. So, if a device that couldn't distribute some private addresses attached first, everything else was hosed.

I put a linksys router that distributes the ip config via dhcp on my network, plugged it into the cable modem. I shut down the cable modem, powered it up and the bind took place with the ethernet interface of the router. I'm now running my desktop pc, 802.11b notebook and my airport/ibook.

Hope it helps.

'If at first you don't succeed, then skydiving isn't for you.'

 

[macigor]

Questions for SkyMut -- I believe I am dealing with the same issue with Comcast. I have a Toshiba cable modem as well.

This garbage has only started happening in the last two weeks -- and it does NOT happen if I plug my computer directly into the cable modem, bypassing the Airport Base Station.

Would changing the cable modem help or is the problem in the way the ISP implements it or is it a limitation of the Airport Base Station ?

If I understand your info, the Airport Base Station does not throw a proper MAC address and therefore cannot retain the DHCP-supplied IP address. Do I get a gold star ?
:-D

Is the only solution to put a router between the ABS and the cable modem ?

 

[Guest_imported]

Hi,

I have a stange one: I have Cable modem (Cox) at home with a Linksys 4-Port Cable/DSL Router attached. 3 out of 4 ports are used: 2 computers and 1 .11b Access Point. I tried plugging in my newly purchased iBook 600, and it only will hit certain web sites (MSN.com, MSNBC.com, CBS.com, to name a very few). I try to hit CNN.com or Cisco.com----Nothing!

In the network settings, I am seeing my DHCP IP and Gateway addresses, and using the network tools, I can ping and tracert to all locations (.edu, .com, .org, and .mil).

Why am I not able to hit all sites?

Alex Isaac
aisaac@cox.net

 

[intl420]

Maclor,

did you end up getting an answer to your question about not being able to plug the airport directly into the cable modem?

i am using an RCA modem and road runner service and have been unable to get my network working. i will be running two powerbooks and a PC laptop on the network.

what do i need to get this network up and running?

thanks, ryan

 

[macigor]

I submitted it as a bug to Apple
Their response leads me to believe that Jaguar might fix it. X-)

As I am only a lowly Online ADC Member,
I have to wait for the official public release of Jag before I can try it.

We shall see after next Saturday !!

"Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." Calvin (Bill Watterson)

 

[macgeneral]

Sounds like the LinkSys router is the way to go.....

'Preciate all the helpful feedback oh faithful Mac networkers.