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View Full Version : DHCP REBIND WARNING - Field invalid in response

Steve Day
19-11-2009, 19:25
what does this error actually mean?

2009-11-19 10:45:18 5-Warning 0x040DC1A0 DHCP REBIND WARNING - Field invalid in response

i am familiar with its counterpart

2009-10-30 12:06:16 5-Warning 0x040DC13C DHCP RENEW WARNING - Field invalid in response

but the REBIND one is new to me. only one occurrance but it recurs each day the IP renews as far as i can tell for the last couple of weeks.

no connectivity issues afaik either. in fact the modem levels are far better now than a month ago.

surfboard 5100 modem. no router. direct cable connection.

safe to ignore?

Steve
Sephiroth
19-11-2009, 19:37
Safe to ignore. Thre's a server DHCP glitch AFAIK.
Steve Day
19-11-2009, 19:42
thanks very much for the prompt reply :)

Steve
Jon T
19-11-2009, 19:57
Sounds like it's related to the binding of you DHCP allocated IP address and the MAC address of the connected equipment. Nothing to worry about AFAIK.
Ignitionnet
19-11-2009, 19:59
Yep - if the original granting server doesn't respond to the DHCP renew request the client will go through a rebind process, which is pretty much starting from the beginning of the process. It can happen through something like VM migrating you to a new DHCP server, the old one is gone so you have to do a rebind instead of a renew.

Here's a nice summary of the two, with pretty pictures so schmucks like me can understand it: The TCP/IP Guide - DHCP Lease Renewal and Rebinding Processes (http://www.tcpipguide.com/free/t_DHCPLeaseRenewalandRebindingProcesses-2.htm)

---------- Post added at 19:59 ---------- Previous post was at 19:57 ----------

Sounds like it's related to the binding of you DHCP allocated IP address and the MAC address of the connected equipment. Nothing to worry about AFAIK.

See link above.
NoKnowledge
19-11-2009, 20:05
I get that now after a power cut in my area.

When the power came back the internet wasn't working and when virginmedia got it working, in the modem logs, the first event was DS re-scanning of the downstream or something to that effect.
VMboy
03-01-2010, 18:35
I got that too.

Warning (5)

DHCP REBIND WARNING - Field invalid in response
III
03-01-2010, 18:38
I got that too.

Warning (5)

DHCP REBIND WARNING - Field invalid in response

And how has it impacted your connection, so that you need to wake an aging thread?
VMboy
03-01-2010, 18:53
No impact, I just wanted to add the same that it appears it's safe to ignore.
It was the first time I have seen that message.
Sorry I should have added this the first time.

Perhaps if adding a reply to this thread upsets so much it may require to be closed.
III
03-01-2010, 18:59
Oh right.

My mum, sister and brother have had this error, their connection suffered no loss either.
Sephiroth
03-01-2010, 21:24
Oh right.

My mum, sister and brother have had this error, their connection suffered no loss either.
Beats catching chicken pox.