Well, ok, Google does not return the same result everywhere, and the rest of the results doesn't look so great.
In short the authoritative clause means that if your DHCP server is the only one on your network (as is nearly always the case), it KNOWS what the valid IP numbers on its network are, and if a client tries to register with an invalid IP number (laptop still has lease from another network) , it immediately tells the client to f*** o** , um, reset itself and try afresh, instead of doing nothing, and leaving it to the client to timeout.
So DHCP-Authoritative should nearly always be set.
I didn't know that.
Joined: 26 Oct 2009 Posts: 9 Location: Wisconsin, US
Posted: Tue Oct 27, 2009 0:41 Post subject:
Just an FYI...
This thread is presently the 2nd Google result for "DHCP-Authoritative". Thanks for answering my question, even if it was 3 years before I asked :C) _________________ ~ EncryptedBytes
Asus WL-500W w/ DD-WRT v24-sp2 (09/30/09) big - build 13000M NEWD-2 Eko
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What useless input to a 4 year old thread.
Leave it alone if you have nothing sensible to add. _________________ Asus RT16N + OTRW
Kingston 4GB USB-disk 128 MB swap + 1.4GB ext3 on /opt + 2 GB ext3 on /mnt
Copperjet 1616 modem in ZipB-config
Asterisk, pixelserv & Pound running on router
Another Asus RT16N as WDS-bridge
Posted: Sun Dec 05, 2010 13:12 Post subject: No need to be rude
I was asking a question. If you don't have an answer you're welcome to excuse yourself from the thread.
For anyone else, I am still unsure whether this setting should be on or off if I add a switch to my set-up. Any help would be appreciated. Any hate will be ignored.
frater wrote:
What useless input to a 4 year old thread.
Leave it alone if you have nothing sensible to add.
The answer is no.
It was answered 4 years ago already if you took the time to read it properly.
You may have a special situation, but then you should have described it in your question.
BTW... I was also referring to the posts in 2009 and previous posts in 2010 about Google ranking.
@moderator: please delete posts after 2006 and close it. It may be easier for some people to see the question has been answered. It seems some have trouble finding it... _________________ Asus RT16N + OTRW
Kingston 4GB USB-disk 128 MB swap + 1.4GB ext3 on /opt + 2 GB ext3 on /mnt
Copperjet 1616 modem in ZipB-config
Asterisk, pixelserv & Pound running on router
Another Asus RT16N as WDS-bridge
Joined: 06 Jun 2006 Posts: 3763 Location: I'm the one on the plate.
Posted: Sun Dec 05, 2010 15:38 Post subject:
tno wrote:
I was asking a question. If you don't have an answer you're welcome to excuse yourself from the thread.
Please excuse Frater.
frater wrote:
@moderator: please delete posts after 2006 and close it.
Being a hard core nerd like yourself, I haven't had sex in several years either. I suggest you start drinking heavily and quit taking this forum foo shit so seriously.
_________________ http://69.175.13.131:8015 Streaming Week-End Disco. Station Ripper V 1.1 will do.
Posted: Sun Dec 05, 2010 23:27 Post subject: Re: So, if I'm using a switch in addition to my router . . .
tno wrote:
I should turn this off, yes? Because then there are two DHCP's and you don't want to ever cross the streams. Yes? Let me know.
You should almost never have two DHCP servers on the same layer 2 segment and if you do then they need to be configured to not contend with each other. DHCP Authoritative is important if you have any devices that roam to other networks like a smartphone or laptop you use at multiple locations. The only reason not to use it is that if two DHCP servers are on the same layer 2 segment and either is configured to be Authoritative then it will invalidate the other's attempts to give leases. Only really complex networks need to worry about having it disabled. It's also commonly disabled in DHCP servers by default to avoid noobies plugging an Authoritative DHCP server into an existing network and bringing it down but you really ought to have it enabled. _________________ Read the forum announcements thoroughly! Be cautious if you're inexperienced.
Available for paid consulting. (Don't PM about complicated setups otherwise)
Looking for bricks and spare routers to expand my collection. (not interested in G spec models)
just to revive a dead thread, I have found that with the spaceship looking black Linksys Wrt54g that if this is left on it will eventually overwhelm the little guy and make your dns stop working.
At least in my case, switch on no internet, switch off lots of internet. Go with the second one
Thanks, phuzi0n, that was very helpful. Setting DHCP Authoritative to "on" seems to have settled a problem I've been having with a Galaxy Tab on froyo, which frequently would refuse to reconnect to my home wireless network.
(Reading the thread, I laughed that the answer, authoritatively delivered, to "on or off" was "no".)