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what is port 68 bootpc for ?

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      8th Mar 2004

What is this port for ?

bootpc 68/udp dhcpc #Bootstrap Protocol


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      8th Mar 2004
This port is the source address for the BootP service in DHCP clients requesting IP addresses from DHCP servers. If you have any clients configured to obtain an IP address automatically from a DHCP server they will send a packet called a DHCP discovery packet out on the network. This packet identifies that a client is searching for an IP address. The packet uses UDP port 68 as it's source address for the client, since it does not have an IP address that refers back to the client.

Hope that helps.

----- scott wrote: ----


What is this port for

bootpc 68/udp dhcpc #Bootstrap Protoco


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      8th Mar 2004

Both BOOTP and DHCP use the same reserved protocol ports for sending an
receiving messages between servers and clients. Both BOOTP and DHC
servers use UDP port 67 to listen for and receive client reques
messages. BOOTP and DHCP clients typically reserve UDP port 68 fo
accepting message replies from either a BOOTP server or DHCP server.

Because DHCP and BOOTP messages use nearly identical format types an
packet structures, and typically use the same well-known service ports
BOOTP or DHCP relay agent programs usually treat BOOTP and DHC
messages as essentially the same message type, without differentiatin
between them.

scott wrote:
> *Hi,
> What is this port for ?
> bootpc 68/udp dhcpc #Bootstra
> Protocol
> Thanks
> Scott.

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      9th Mar 2004
Thanks, thats a help.

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