My IP address with DHCP

[Kenny Hitt]

Hi.  The log for your DHCP client should have the address of the DHCP
server it's using.  If you use dhcp-client, you can also look in
/var/lib/dhcp/dhclient.leases to find out.

Hope this helps.
         Kenny

On Sun, Jan 11, 2004 at 08:30:27PM -0500, Chuck Hallenbeck wrote:
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> Hi Greg,
> 
> My firewall script wants what it calls the IP address of my DHCP
> server. That must not be what ifconfig reports, right? But I
> grabbed that IP address from ifconfig and plugged it into the
> firewall script, and it works fine.
> 
> My ISP is "mhcable.com" -- is it their IP address that the
> firewall wants when it asks for the IP address of my dhcp server?
> 
> I am closing in on it, but not quite there yet.
> 
> Chuck
> 
> 
> On Sun, 11 Jan 2004, Gregory Nowak wrote:
> 
> > Hi Chuck.
> >
> > The inet addr is your ip address. Remember that ppp0 is a point to
> > point interface, which means that even though you have an ip address
> > visible to the world assigned by the ppp gateway, you are actually
> > connecting from a separate private address assigned to you by the
> > gateway, to an interface address on that gateway which is also
> > private. Thus a point to point connection.
> >
> > With eth0, you don't have a point to point connection, but you do have
> > an ethernet connection which means your inet addr is the address the
> > rest of the world knows you by, and there are no intermediate
> > addresses between you and your isp like you have with ppp.
> >
> > Hope that helped, and that it wasn't too confusing.
> >
> > Greg
> >
> >
> > On Sun, Jan 11, 2004 at 08:12:30PM -0500, Chuck Hallenbeck wrote:
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> > > Hi people,
> > >
> > > I am confused (for a change?)
> > >
> > > My cable modem connection works like a charm, so maybe I should
> > > leave it alone. But I am confused about my IP address and that of
> > > the host to which I am connecting.
> > >
> > > With the ppp0 interface, I can find both the remote and the local
> > > IP addresses, but with the eth0 interface, ifconfig reports only
> > > one address, which it calls "inet addr:". Is that me? Or is it my
> > > ISP?  I have assumed it is my ISP, and have used it as such in my
> > > firewall script, which is working great. But then what is my own
> > > IP address, the one that used to be called a local IP address
> > > with ppp0?
> > >
> > > I am seeing weird entries in my firewall log with destination
> > > addresses matching what ifconfig calls the "inet addr:" and I am
> > > not sure if that is my address, or my ISP's?
> > >
> > > Any advice will be handsomely rewarded.
> > >
> > > Chuck
> > >
> > >
> > > - --
> > > The Moon is Waning Gibbous (82% of Full)
> > > In a world without Fences or Walls no one needs Windows or Gates.
> > > My home page is now at http://www.mhcable.com/~chuckh
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> > >
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> >
> >
> 
> - -- 
> The Moon is Waning Gibbous (81% of Full)
> In a world without Fences or Walls no one needs Windows or Gates.
> My home page is now at http://www.mhcable.com/~chuckh
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> 
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