[l008com]

Are there CLI tools for handling connecting and disconnecting dial-up via PPP? I need to turn an iMac into sort of a dial-up router. I have a cheapo wireless router I'm going to attach to it. So I figure, if there are CLI tools for dial-up control, I can just whip up a page in PHP that I can host on the iMac, that way, once your on the wireless network, you can just type 192.168.0.1, get to the iMacs page, and dial on up through that.

[Graymalkin]

%man pppd

Code:
NAME
       pppd - Point to Point Protocol daemon

SYNOPSIS
       pppd [ tty_name ] [ speed ] [ options ]

DESCRIPTION
       The  Point-to-Point  Protocol  (PPP) provides a method for transmitting
       datagrams over serial point-to-point links.  PPP is composed  of  three
       parts:  a  method  for  encapsulating  datagrams  over serial links, an
       extensible Link Control Protocol (LCP), and a family of Network Control
       Protocols  (NCP)  for  establishing  and configuring different network-
       layer protocols.

       The encapsulation scheme is provided by  driver  code  in  the  kernel.
       Pppd  provides  the  basic  LCP, authentication support, and an NCP for
       establishing and configuring the Internet Protocol (IP) (called the  IP
       Control Protocol, IPCP).
...

You might also take a look at this guide for FreeBSD which describes how to connect using the command line. Some of the syntax in OSX is a bit different, you need to put configuration lines in the /etc/ppp/options file instead of ppp.conf (I think).