Alona wrote:
> Hello All:
>
> I have configured one of our AIX boxes to use DHCP. The box is
> accessible by the IP assigned to it by DHCP server, but is
> inaccessible by name. Did I miss anything in configuration? Are there
> any advantages or disadvantages of using dynamic IP over static IP and
> vise versa?
>
>
> Thank you,
> Alona

DHCP assigns an IP adddress to your machine and you can refer to
the machine by that ip number. Now you need to associate the ip
address with a name.

With static ip address you can enter the assigned address
in a hosts file (/etc/hosts in unix or something like
C:\WINDOWS\system32\drivers\etc\hosts in windows) or in
your name server (bind/dns) tables.

With dynamic ip addressing you need to use DDNS to automatically
update the name server tables to associate the ip address with
a name. DHCP can be configured to tell the the name server table
of the association. In the windows ip properties DNS tab, there
is check box to have the windows dhcp client register the address
with the name server.

Since your machines name isn't being automatically set by dhcp,
you may need you your dhcp client table (/etc/dhcpcd.ini) to
perform this action. That would be the "updateDNS" entry.

It depends on the configuration of your dhcp server. However, I've
found the following configuration of the /etc/dhcpcd.ini works well.
Be sure to make a copy of your dhcpcd.ini first. Then edit it to the
following active lines. Then change the interface and the hostname
to match your configuration. Stop and start dhcpcd and you should be
able to resolve by name.


----begin dhcpcd.ini file---------------------------

numLogFiles 4
logFileSize 100
logFileName /usr/tmp/dhcpcd.log
logItem SYSERR
logItem OBJERR

clientid MAC
interface en0
{
option 12 "aixdb2server"
option 3
option 6
option 15
}

----end dhcpcd.ini file---------------------------

Alona wrote:

>Hello All:
>
>I have configured one of our AIX boxes to use DHCP. The box is
>accessible by the IP assigned to it by DHCP server, but is
>inaccessible by name. Did I miss anything in configuration? Are there
>any advantages or disadvantages of using dynamic IP over static IP and
>vise versa?
>
>
>Thank you,
>Alona

Alona,

If the AIX box needs to receive connections from other things, it
should have a static IP address.

Dynamic addresses are really only useful for devices that onlu\ly
establish connections, like workstations.

If a server ( or device like a printer that provides a service) has a
dynamic address, how will other devices on the network know what its
address is today?

Regards,

Ted Linnell.
================================================== ============
| Ted Linnell |
| |
| Nunawading, Victoria , Australia |
================================================== ============

Alona wrote:
> Hello All:
>
> I have configured one of our AIX boxes to use DHCP. The box is
> accessible by the IP assigned to it by DHCP server, but is
> inaccessible by name. Did I miss anything in configuration? Are there
> any advantages or disadvantages of using dynamic IP over static IP and
> vise versa?

Changing your IP has no advantages...
only if you are banned out from somewhere...