newbie DHCP TCP questions

2001-05-22 Thread Scott Frankel

I'm setting up a dual-boot Debian Linux | MacOS PowerBook.  It's connected
to a LinkSys Cable/DSL Router, supporting DHCP.  After configuring the router, 
the MacOS side works flawlessly.  But there's no joy yet on the linux side.

One thing that'd sure help would be to know how I can translate terms my ISP 
uses into the terms-fields used in /etc/network/interfaces.  i.e.:
  [...]
  network -- ?
  broadcast   -- router address?
  gateway -- name server addresses?

Would anyone have example /etc/network/interfaces syntax for configuring the
automagic of DHCP?  Under MacOS, all the TCP/IP settings are supplied by the
router.  How is that set up here?  Is there another script or file used to 
configure DHCP?

Once I get the DSL connection working under Debian Linux, my next task is
to find a package, XF86Config(?), so I can get my PowerBook's trackpad to work
under X.  Then maybe I can boot into one of Linux's graphical UI's ;)  

Thanks
Scott



Re: newbie DHCP TCP questions

2001-05-22 Thread Nathan E Norman
On Mon, May 21, 2001 at 10:28:45PM -0700, Scott Frankel wrote:
 
 I'm setting up a dual-boot Debian Linux | MacOS PowerBook.  It's connected
 to a LinkSys Cable/DSL Router, supporting DHCP.  After configuring the 
 router, 
 the MacOS side works flawlessly.  But there's no joy yet on the linux side.
 
 One thing that'd sure help would be to know how I can translate terms my ISP 
 uses into the terms-fields used in /etc/network/interfaces.  i.e.:
   [...]
   network -- ?
   broadcast   -- router address?
   gateway -- name server addresses?

Your IP address bitwise ANDed with the netmask yields the network.

The network address bitwise ORed with the negated netmask yields the
broadcast.

The router's IP is the gateway.
 
An example:

  IP: 192.168.0.34 (0xc0a80022)
  Mask: 255.255.255.240 (0xfff0)

  0xc0a80022  0xfff0 = 0xc0a80020 (192.168.0.32)

  0xc0a80020 | ~0x0f = 0xc0a8002f (192.168.0.47)

You can do all these calculations with perl :)  I'll elaborate if
people care ...

 Would anyone have example /etc/network/interfaces syntax for configuring the
 automagic of DHCP?  Under MacOS, all the TCP/IP settings are supplied by the
 router.  How is that set up here?  Is there another script or file used to 
 configure DHCP?

# interfaces to bring up at boot
auto lo eth0

# We always want the loopback interface.
iface lo inet loopback

# fast ethernet
iface eth0 inet dhcp

 
 Once I get the DSL connection working under Debian Linux, my next task is
 to find a package, XF86Config(?), so I can get my PowerBook's trackpad to work
 under X.  Then maybe I can boot into one of Linux's graphical UI's ;)  

Dunno about this, though I've had great luck with Xfree86 4.x.  I'm
not a Mac guy though so perhaps Ethan can answer this one.

Good luck,

-- 
Nathan Norman - Staff Engineer | A good plan today is better
Micromuse Ltd. | than a perfect plan tomorrow.
mailto:[EMAIL PROTECTED]   |   -- Patton


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