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[vox-tech] dhcp question
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[vox-tech] dhcp question

this is the first time i've ever done anything with dhcp.  please regard
me as a newbie here.

from reading the man page, it sounds like:

   pump -i eth0


   pump -i eth0 -l 120   (for 120 hours)

will get an IP assigned to a machine.  right?   does this also configure
DNS servers?   will it also take care of the default gateway?


in /etc/networks/interface (debian), i'm thoroughly confused by the man

   The dhcp Method
       This method may be used to obtain an address via DHCP with
       any  of the tools: dhclient, pump (Linux 2.2.x and newer),
       udhcpc (Linux 2.2.x and newer), or dhcpcd. If you  have  a
       complicated  DHCP setup you should note that some of these
       clients use their own  configuration  files,  rather  than
       obtaining their configuration via ifup.


              hostname hostname
                     Hostname  to  be  requested  (pump,  dhcpcd,

              leasehours leastime
                     Preferred lease time in hours (pump)

              leasetime leasetime
                     Preferred lease time in seconds (dhcpcd)

              vendor vendor
                     Vendor class identifier (dhcpcd)

              client client_id
                     Client identifier (dhcpcd, udhcpc)

two questions:

1.  how does ifup know which dhcp client to use?   what if for some
   reason i *really* wanted to use pump?   or dhcpd?   how can i specify
   one or the other?

2. are all these options "really" optional?  could a valid "working"
   stanza be as simple as:

      iface eth0 inet dhcp

   and would "ifup eth0" do everything for me from this one line?


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