[G4] FTP via Airport Extreme

[Perry The Cynic]

Your base station is acting as a NAT gateway, and your powerbook is hidden 
behind it. You can get out, but you can't get in - nobody on the wire side 
of the base station can see what's behind it. You shouldn't be able to 
connect to it (from the wire side) with anything - file sharing, ssh, etc. 
- though you can connect *out* just fine.

The easiest thing is to turn off NAT on the base station. Then everything 
works normal. The downside is that you need to have a separate IP address 
for your powerbook (one visible from wherever you want to FTP from).

The other possibility is to do port mapping: 
<http://docs.info.apple.com/article.html?artnum=150745>. The port number 
for FTP is 21. You will probably have to use "active" (not passive) FTP to 
connect to your server (unless there's a NAT helper for FTP built into the 
base station software - I don't know that).

Cheers
  -- perry

--On Wednesday, July 7, 2004 8:33 AM -0400 "Wilkin, Wayne (Mass)" 
<Wayne.Wilkin at Staples.com> wrote:

> Setup:
> Cable Modem/Airport Extreme/Netgear 8 port router
> Computers:
> 1 Laptop/1 G4 733/1 dual 125
> All computers and airport software are running X.3.4, all airport software
> and firmware up to date.
> 2 G4's are plugged into the router, laptop is wireless.
> The 733 is running as an FTP site only
> The dual 125 is a regular desktop station.
> The airports IP is 64.x.x.x
> The G4's and laptop get their IP's from the basestation. 10.0.1.6, .7, .8
> The .7 system is the FTP computer.
> Problem:
> I can access the FTP computer via FTP software but only within my own
> network. If I try to access from outside my network, say from my work, no
> dice. I know it has something to do with the setup on the Airport but
> can't figure it out. Thanks in advance, Wayne.
>
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Perry The Cynic                                             perry at cynic.org
To a blind optimist, an optimistic realist must seem like an Accursed Cynic.
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