DHCP Client not setting obtained nameserver info

Solaris 8
The dhcpagent file was modified so that the nameserver info is requested: PARAM_REQUEST_LIST=1,3,6,12,43
By default, #6 was missing. After a boot, running dhcpinfo and requesting the data for #6, results in three IP addresses being displayed.
The problem is that those three values are not set anywhere, so no resolving is done. If I manually place the values into resolv.conf, then resolving works. Obviously I need this to happen automatically.
Any clues as to what to do so that automatic configuration of nameserver info obtained via DHCP will be appreciated.
Thanks in advance
MB

Having multiple DIFFERENT nameserver addresses is fine, it will just try them in sequence. But I see no point in having the same IP repeated and that might be a bad thing relative to performance (or it might be smart enough to ignore duplicates)
As for the .plist files, no idea. Since the Cisco VPN is not using system prefs I don't think that would be an issue, but don't know what these files are really used for. i also tired the same setup (installing the Cisco VPN) on a system that has not been touched in ages (an old mac cube server as my backup/media server) and it had the same result. That leads me to think it is something on the remote end, yet my linux box connects and sets its nameserver just fine. I don't recall just when this started happening, maybe its a 10.4.10 issue (at least both Macs are on 10.4.10) ???

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Some dhcp clients not reaching internet

This afternoon, I noticed that my iPhone was no longer reaching the internet. Later, we noticed my husband's (new!) iPad and my son's MacBook were not reaching the internet either. At least my MacBook was still reaching the internet. In all cases, the connectivity with the airport was fine; 4-5 bars, most of the time. All were connected yesterday, I believe. We made no real changes. I had my iPhone right next to my MacBook and both had good connections to the wifi, but only the MacBook was reaching the Internet.
I went into Airport Utility and looked at the Time Capsule and found a long list under DHCP clients (maybe 9), but only 4 on the wireless clients list. I researched the issue, finding very little except generic suggestions (update software and reset the Time Capsule). The software was up to date; resetting it did fix the problem, at least for now. I am concerned it will happen again.
Our airport devices:
- Time Capsule running 7.5.2
- 2 Airport Expresses, also running 7.5.2.
Most, if not all, our wifi devices are up to date, including my MacBook running 10.6.5 and my iPhone running 4.2.1.

I'm not sure this is quite the same since simply restarting our Time Capsule fixed things for us. It is annoying since I don't want to have to restart the Time Capsule every week or so when it fails this way, but restarted did fix this, at least temporarily.
Another possibility I came across is that an ISP might limit the number of devices you can connect to the Time Capsule, but that wasn't the case for us. I'm thinking the Apple person you talked to probably checked on this, though.
Hope you can figure it out!
- Liz, aka liz4cps

DHCP Clients Not showing in Server Admin....but are there

Hi,
DHCP has just recently stopped showing me the MAC addresses of connected clients. It always says 0 though I know through the logs that DHCP is working. Any ideas? I will give more info if needed but wondering if it's maybe a bug or something?
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try if this helps:
_*Music Folder Files Not Added v2.0*_
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DHCP client not working on WLAN after boot [Win XP]

Hi.
I've got a problem with a Lenovo T61 with Windows XP SP2.
I've browsed the forums, and I haven't seen anyone else with a similar problem.
The WLAN works on this computer, but I have to turn it off and on before it works.
If I boot the computer with no ethernet cable connected, log in and wait for Windows to connect to a WLAN, I get limited or no connectivity.
The computer is able to connect to the WLAN I have chosen, but when it is supposed to recieve an IP adress from the DHCP Server it doesn't.
I either have to right click the wireless icon at the lower right of the screen and press repair, or I have to turn off and on the wireless radio with the switch on the laptop.
When I do this it works as normal.
If I use Access connections to set up a wireless connection, specify an SSID, encryption and choose to get IP from DHCP it works. I recieve an IP adress without turning the WLAN radio off and on.
The person using this computer is travelling a lot, and he is not very good with computers, so he doesn't want to use Access Connections to manually make a profile for each WLAN he uses.
How can I fix this and use windows to mange WLAN connections without having to using "repair" or turning the WLAN radio off and on?
Thanks in advance.

There is another thread on this problem about not recovering TCPIP addresses on this forum. the thread recommends installing an update. http://forums.lenovo.com/lnv/board/message?board.id=T_Series_Thinkpads&thread.id=1620
Does the laptop have SP3 installed. I found this to be very helpful on my T23.
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DHCP client not working

Ok here is the scenario:
I have a laptop with an up to date Arch installation, at home I use a static ip with my router which still has dhcp enabled for some other desktops.
Now at work I needed to use DHCP, so i reconfigured rc.conf to say eth0="dhcp". But it never got an ip address, it always fails. When I checked with ethereali could see the outgoing dhcp packet but no response from the server, the cable and server were clean because all was well under Windows. I tried both dhcpcd and dhclient but no luck with either.
I then compared the packets under windows and arch and came to the conclusion that the only noticeable difference is that the DHCP message type is "DHCP Request" under Windows and for some reason is "DHCP Discover" under arch (there's a binary difference in the packet and thats the way ethereal names the types). Now i'm wondering why the hell does it do that? Why can't dhcpcd and dhclient send a normal dhcp request? Am I missing something really obvious here? Because Dhcp is making me look like an idiot :S And I really need to get online under Linux for work.
Any help is appreciated. Thx.
EDIT: I also have Arch on my desktop, and just tried it using dhcp there, and it works fine. It might be worth mentioning that my desktop is rather out-of-date when it comes to packages while my laptop is prettymuch up-to-date. And yup the packet type is also "Dhcp Request" when i try it on my desktop instead of "Dhcp Discover".. weird.

Solved: Was a driver problem, if you have a broadcom wired ethernet chipset, you need the driver from broadcom because the kernel has some kind of reversed driver built in and it doesn't work properly.

DHCP Client Service Procedure Not Found

I have a W2008R2 Standard server (DC) holding both DHCP and DNS roles. When the server was originally built the (migrated from 2003) DHCP did not load properly and per a Microsoft support incident we backed up the existing DHCP and rebuilt it. Everything
was working fine however the DHCP Client Service does not run. This was back in 2012 so I don't recall if it the service was started and quit or if we just didn't notice that the Client Service was not running. It has not been a problem for me
until now. I need to run a new backup agent on this server and it requires the DHCP Client Service to be running. I did notice upon a reboot that the service was "stopping" and will not restart. It appears as though it does start
on boot and then immediately stops as I would not have caught the "stopping" status had I not went into the Services mmc right away. The error that I get when trying to restart is 127: The specified procedure could not be found. This
is the only info logged in the event viewer as well. The service is configured to start using Network Service credentials and is set to automatic. The dependencies are: "depends on" Ancillary Function Driver for Winsock & TCP/IP
Protocol Driver. The WinHTTP Web Proxy Auto-Discovery Service depends on the Client Service. I have noticed on two other W2008R2 servers that the dependencies are different: The "depends on" are: Ancillary Funtion Driver for Winsock,
NetIO Legacy TDI Support Driver and Network Store Interface Service. The components depending on the Client Service are the same on all servers. I'm not sure if these differences are due to the fact that this server is running DHCP server and the others
are not? Or is this difference the reason for my issue? I'm hesitant to change these parameters without some guidance for fear of trashing my entire box. I did remove and completely rebuilld/reinstall the DHCP server role last night, hoping that
may fix the issue, but no luck. I've run DNS tests & DCDiag with no issues found. Anyone familiar with this problem? What to do? Thanks!

Updates: There are no events being reported at all in the DHCP Service log. Things I have tried thus far:
All Windows Updates installed
Uninstall and re-install the DHCP Server
Reset Winsock
Made sure permssions are set to Full for both Network Service & Local Service accounts (I tried changing the logon account to Local Service also).
I noticed on another (working) W2008R2 server that the dependencies were different although this server did not hold the role of DHCP Server. The problematic server only listed Ancillary Function Driver for Winsock & Tcpip. The working
server listed Ancillary Function Driver for Winsock, Network Store Interface Service and NetIO Legacy TDI Support Driver. I then changed the dependencies to match that of the working server. Verified that all of these were "started" in
Device Manager. The DHCP Client Service now fails with Error 1079: The account specified for this service is different from the account specified for other services running the same process. (I did find a Microsoft Fixit for this--didn't
make any difference though).
I noticed on the other working server that the logon account for DHCP Client Service is actually LocalServiceNetworkRestricted. I had set it to LocalService. After making this change, my error now has changed to: Windows could not start the DHCP
Client service on Local Computer. Error 1314: A required privilege is not held by the client.
I split my DHCP scope and set up a second DHCP server to determine what effect the DHCP Server role had on things. I don't know that I've noticed anything to be honest. So moving on...
I mirrored the permissions in the registry to those of the new (additional) DHCP server for the following key: HKLM\System\CurrentControlSet\Services\DHCP. When I compare the permissions I notice that the problematic server is missing some
entries. The working server has: SYSTEM, LOCAL SERVICE, NETWORK SERVICE, Administrator, Users, Network Configuration Operators & Dhcp. The troubled server does not list Network Configuration Operators or Dhcp. I was able to add
the NW Configuration Operators ( a built-in security group), but do not see anything for Dhcp other than user groups for DHCP Admins & Users. Based on what I see on the working server, I don't think that is the right thing to add.
I also noticed that some keys were missing for this reg entry vs. the same key on the second server. Missing were (all under the HKLM entry above): RequiredPrivileges (REG_MULTI_SZ) value: SeChangeNotifyPrivilege SeCreateGlobalPrivilege ServiceDll
(REG_EXPAND_SZ) %SystemRoot%\system32\dhcpcore.dll (*I did verify this file does exist) and ServiceSidType (REG_DWORD) value: 1. I added these reg keys. I also noticed that the troubled server has a subkey titled Enum. There are 4 values
listed: Default (REG_SZ), no value. 0 (REG_SZ) Data value= Root\LEGACY_DHCP\0000, Count (REG_DWORD) Value: 1 and NextInstance (REG_DWORD) Value: 1. The working server does not have this key.
In comparing the reg values on each server, the only significant difference that I've notice other than what is listed above is HKLM\System\CurrentControlSet\Services\Dhcp\Parameters. On the working server the ServiceDll is dhcpcore.dll. On the
server having the issue that value is defined as dhcpcsvc.dll. I'm suspect that this could be a contributing factor, but have not made the change yet.
I am still sitting with the error 1314: A required privilege is not held by the client.
So this is where I'm at...Any ideas would be appreciated as I'm really trying to avoid having to rebuild this entire server. Thank you

WLC2504 clients not receiving DHCP leases

I'm stock with a 2504 using version 7.0.220.0 that won't lease out DHCP adresses
Wifi clients are unable to get a DHCP lease from an external DHCP server.
The WLC are handling 3 WLAN, 2 using internal DHCP server, 1 (that wont work) using external DHCP. The external DHCP server, is a router/firewall (out of my reach) that suffered from a power out, a short while ago, ever since the DHCP is not working on that VLAN, if client are getting static ip adresses, everything works fine. If i'm using the same network link, and plug it into a computer, I get a DHCP address.
I've enable DHCP proxy
Debbuging DHCP, using: Debug DHCP packets enable
Gives me this:
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP received op BOOTREQUEST (1) (len 308,vlan 20, port 1, encap 0xec00)
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option len (including the magic cookie) 72
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: message type = DHCP INFORM
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: 61 (len 7) - skipping
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: 12 (len 1) - skipping
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: vendor class id = MSFT 5.0 (len 8)
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP option: 55 (len 13) - skipping
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP options end, len 72, actual 64
*DHCP Socket Task: Nov 08 14:21:11.397: c8:0a:a9:cc:6d:f6 DHCP dropping packet (no mscb) found - (giaddr 0.0.0.0, pktInfo->srcPort 68, op: 'BOOTREQUEST')
Thanks

Hi Steen,
When a client is in DHCP REQ state on the controller, the controller drops DHCP inform packets. The client will not go into a RUN state on the controller (this is required for the client to pass traffic) until it receives a DHCP discover packet from the client. DHCP inform packets are forwarded by the controller when DHCP proxy is disabled.
Please check this, if still u r facing issue then provide more info.
Can you please paste a client debug of the client having DHCP issues.
Go to cli of the wlc and run the client debug . Diconnect the client then reconnect and gather the output and post.
Regards

Windows could not start the DHCP Client service on Local Computer, Error 2

Hi everyone,
I assign IP addresses via my router but today installed OpenVPN and it depends on the DHCP Client service. I checked in services and found it wasn't running. If I try starting it I get this message "Windows could not start the DHCP Client
service on Local Computer." "Error 2: The system cannot find the file specified.".
There's plenty of info out there about this issue but nothing seems to fix it for me. I've tried the following as an administrator,
"sfc /scannow" - It reported and error which it fixed but after a restart the problem persists.
"NET LOCALGROUP administrators "NT Authority\Local Service" /add"
"netsh winsock reset catalog"
I also checked that all dependencies of the DHCP Client service are working. I used "CMD /K
SC QC DHCP" to check the dependencies and compared them to an identical computer and they are. Hope someone can help. Thanks in advance.

Hi,
Did you mean after the restart the sfc /scannow command still could find the corrupted files?
Have you check this these related registry entries permission for your account?
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp
permission needed: Query value, Create value, Enumerate Subkeys, Notify, Read Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp\Configurations
permission needed: Full Control, Read
for more information, read this article:
Some services do not start in Windows Vista and Windows 7
https://support.microsoft.com/kb/943996?wa=wsignin1.0
If the issue still cannot be resolved, I would like to suggest you use the recovery media to repair your computer.
Karen Hu
TechNet Community Support

Why do some devices show up as wireless clients and not DHCP clients

When looking at the 'Logs and Statistics' section it shows me the MAC addresses of 3 wireless devices I have on my W/LAN (Macbook and 2 wireless PVR's) in the 'wireless clients' section but no info on the 2 wireless PVR's in the DHCP clients section. Only the Macbook appears there with its ip address shown. Can anyone tell me how to find out the ip addresses of these 2 other devices. I tried connecting one of the PVR's via a cat 5 but that one still doesn't show up in the DHCP clients section.

Esterhazyinoz wrote:
Can anyone tell me how to find out the ip addresses of these 2 other devices. I tried connecting one of the PVR's via a cat 5 but that one still doesn't show up in the DHCP clients section.
Try scanning with WakeOnLan to get a list of all devices and their IP addresses. If the devices got fixed IP addresses at the factory, they won't show up under DHCP.

WEC7 DHCP Allocator not sending ACK for a DHCP client

Hi All,
I have a WEC7 device configured as DHCP Allocator.
My PC (windows 7) will get ip from DHCP allocator successfully.
WEC7 ip settings:
ip: 169.254.0.1
subnet: 255.255.0.0
DNS: 0.0.0.0
My PC Ip after got ip from WEC7 DHCP Allocator:
ip : 169.254.0.3
net mask: 255.255.0.0
DHCP server: 169.254.0.1
DNS server : 169.254.0.1
Default Gateway: 169.254.0.1
I have another device (Ethernet based energy Meter), I am getting below problem
-> Meter will send DHCP DISCOVER Command (Broadcast)
-> DHCP Allocator Sends DHCP OFFER command back (Broadcast)
-> Meter will send DHCP Request to DHCP Allocator (Broadcast)
Now meter expects DHCP ACK command but DHCP allocator not sending any command.
within ~3 sec Meter start sending DHCP DISCOVER Command. this will happen continuously.
some time DHCP server will send ACK, but by that time Meter start sending DHCP DISCOVER command.
I Tried testing this meter by connecting to my PC directly and running a simple DHCP Server on my PC, here Meter connected to sample server and got ip from server.
The DHCP Concept is working with WEC7DHCP Allocator to PC client, Meter to PC as server but not with WEC7 server and Meter.
I compared the packets, only the difference i can identify is PC client is configured with Host name and Meter not have nay host name.
Any idea on whats wrong with WEC7 and Meter combination?
Do you know any third party DHCP server?
Please suggest me,
rakesh

Hi All,
The problem is not yest solved.
As I mentioned in last post, only the difference between My PC and Meter is Meter don't have Device Name and we are not able to configure it.
Device Name is the real Problem? If yes how can i eliminate this dependency?
For Static ip allocation at HKEY_LOCAL_MACHINE\Comm\ConnectionSharing\Addresses\Address, aslo there is dependency on Device name, is it possible to map the ip to MAC instead of Device name?
One more thing I observer that, DHCP allocator will send response for DISCOVER or REQUEST after 3 seconds. As Meter will send next discover before getting ACK, please check below log.
But in PC the entire DHCP registration will finish within 1 sec, I am not understanding why DHCP Allocator delaying for responding
Any suggestions will be really appreciated. Please recommend any third party DHCP Server if any available (we are ready to purchase also)
Thanks in Advance
DHCP Allocator (WEC7) Ip: 169.254.0.1
ip allocated from WEC7 for my PC : 169.254.0.15
Meter ip : 0.0.0.0
rakesh

DHCP Client Table not accurate (EA4500)

I have DHCP enabled, but I have assigned a static IP to most of my network devices.
When I click on the DHCP Client Table, most of the devices are NOT shown even though I know they are connected and working.
One device (a Brother printer) that I have assigned a static IP to actually shows up as having an IP from the DHCP range.
A Panasonic TV does not show up at all even though it is connected and woking. I have not been able to assign a static IP to it because it does not show up.

And another thing, you know your device is connected through the ip address that it is getting and if you can ping your router's ip through that device.

DHCP client does not work poperly after systemd and Gnome 3.6 upgrade

Upgraded my system today from Gnome 3.4 to 3.6 (and systemd was updated as well), and since then acquiring an IP address using DHCP does not work anymore.
I am using IPv4 only internally, but neither dhclient or dhcpcd manages to get an IPv4 address.
It seems like IPv6 is priority one, and beacuse there is no IPv6 DHCP server available NetworkManager aborts the whole setup process.
To make sure that IPv6 should not be considered, I have changed "method" in NetworkManager to "Ignore" for IPv6.
I have also tried to downgrade NM to 0.9.6.0 from 0.9.6.4 (since that version works on another, not upgraded, machine), without any result.
Also switched dhclient to dhcpcd, without any result.
The machine is a "pure" systemd machine.
DHCP works for other devices in the network.
Versions:
systemd 195-2
NetworkManager 0.9.6.4
isc-dhclient-4.2.3-P2
I have no issues on a system where following versions are running:
systemd 189-4
NetworkManager 0.9.6.0
dhcpcd 5.6.2
Log: http://pastebin.com/2wMC0JLe

Think I have identified the issue now.
Neither dhcpcd or dhclient is sending the host name properly to the DHCP server anymore. I had an IP address reserved in the DHCP server for my host and after deleting this reservation my host is able to acquire an IP (dynamic) address. The reserved static address could never be acquired.
Conclusion: dhclient and dhcpcd is not sending the host name as before, causing the DHCP server to get stuck (while waiting for the host name) whenever a NIC with a reserved IP address is requesting an IP address.
Downgrading the dhcp clients has not yet worked, so there might be some underlying component that is causing the problem. ath5k? systemd?

HT204053 for some reason i have more than one apple id, not sure how, must have set one up ages ago and forgot about it. can i delete one, or merge them? how do i know im not going to lose info if i delete one account?

for some reason i have more than one apple id, not sure how, must have set one up ages ago and forgot about it. can i delete one, or merge them? how do i know im not going to lose info if i delete one account?

You can neither merge or delete them. Pick one and stop using the other. If they both have purchases associated with them you will have to keep using both.

Linksys E2500 does not show any devices in DHCP client table

Equipment:
Old Westell DSL modem, still runs like a champ
Linksys E2500
home built desktop running Linux 12.10
We're having intermittent WiFi. This morning I finally sat down to do some troubleshooting. SOP for me is to reset both the modem and the router. Modem bounce went fine.
Before bouncing the router I did some nosing around and noticed there were no devices listed when I nosed throught the DHCP client table, not even the wired connection for my desktop. There should be 2 MacBooks, an Apple TV device and a Galaxy S4 showing up.
The other oddity - on a lark I switched the MacBooks over to the guest connection and there have been no problems with wifi since.
What gives...?
Any and all help will be greatly appreciated!

You make sure that the router's firmware is up to date. Reset it again since that's recommended after the upgrade and reconfigure the settings again. All devices in your network connected/ utilizing the router's DHCP server should be listed under the Clients Table.
For the intermittent wireless issue, try changing the wireless settings; ssid, wireless channel, and the security. For the channel, play around with channels 1, 6, 9, and 11.

Oracle 11g or higher client is not installed or not set to Primary Oracle..

Hi all,
I have installed oracle 11g client on my machine. It connecting fine with the server throuhg sqlplus but when i connect my application that is developed in power builder, it prompts an errror message stated 'Oracle 11g or higher client is not installed or not set to Primary Oracle Home'. I have tried different solutions from different posts over the internet but colud not get fruitfull results.
Please help me out in this regard to continue...
Thanks & Regards,
Adil Mukhtar

As already said, this looks like a powerbuilder issue, related to how it "finds" Oracle client/oci libraries.
Assuming this is on Windows, you could use Process Monitor from Sysinternals to watch what your app does (e.g. where it looks for dll's). It's a great troubleshooting tool: http://technet.microsoft.com/en-us/sysinternals/bb896645
Google provides some results with similar issues. Maybe you have tried most of it already, but at least as a reference for others: http://lmgtfy.com/?q=powerbuilder+%22oracle11g+or+higher+client+is+not+installed%22

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