DHCP/IP helper not working over cellular radio

Hi,
Anyone come across the following issue before?
I have a CISCO1921/K9 router that is connected to our corporate WAN via cellular radio. The cellular connection is via HWIC - 4G WWAN EHWIC.
The cellular network is up and I ping across the WAN form the LAN interface on the router to external resources. I can also access the cellular interface to manage the router via SSH. However, hosts on the LAN network are unable to get an IP address.
Routing seems to be working as I can ping the DHCP server from the LAN interface. Also, if I give the clients on the LAN interface a static IP address, I am able to contact the DHCP server - tested by pinging and RDP.
Please see attached config and debug output. I have also checked the log files on the DHCP server in the data centre and I am unable to see any entries from this network.
I had issues connecting previously and the ISP was able to identify an issue on their end. That was fixed and on the whole it seems to be working except for the DHCP issue.
Thank you for your time in advance and for any suggestions or advice.

Hi Gary,
I don't know of any specific issues but since it occurs in Win2008 but not in Win2003 it sounds like there must be something different in the implementation of handling DHCP requests when using IP helper.
For sure if the switch software is relatively old it's worth upgrading to rule out any possible known bugs at this point.
If investigation is needed we can run some dhcp based debugs during the issue, we can run those same debugs using the Win2003 device (when it's working) to compare the outputs.
Specifically we could look to run:
#deb ip dhcp server packet
#deb ip dhcp server events
Collect those when trying to get an IP address from the server. Maybe it will give us a clue as to why it's not working.
To summarise, upgrading the IOS makes sense, and maybe get those debugs. We might also look at getting some SPAN captures as well.
finally, can you ensure 'service dhcp' is enabled globally?
Thanks,
/gary

Similar Messages

Iphone itunes match not working over cellular network. songs are grey but not playing. help

Need help with itunes match on iphone. seems to not play songs over cellular network. songs are grey but no access

Hi rulffers,
From your post I understand that you're unable to play songs from iTunes Match on your iPhone. To troubleshoot this issue please follow the steps in the article below.
How to troubleshoot iTunes Match - Apple Support
Have a great weekend,
Alex H.

Icloud mail does not work over cellular network after upgrade to IOS 8.1.3

Hi,
Since I did the update to IOS 8.1.3 on my iPhone 6 Plus yesterday, my icloud mails cannot be received/sent with my phone over the cellular network.
In order to make mails workin' I need to be connected to a Wifi network.
All setting are correct on the phone.
How can I fix this **** issue.
Deleted the icloud account already and added it again but that does not help.
Also when I try to connect to iCloud from the iCloud settings it says: Authentication Failed - A server error occurred.
The password is correct.
Please help me.
Jerry

I Fixed it by trying to sign in with a different ID and canceling when it asked For a password and then signed in with my ID and it works! No more error message. I got this idea from another discussion. Thank you for replying though.

HT4623 my voice call services is not working with cellular network...only works fine with wifi..please help?

my voice call services is not working with cellular network...only works fine with wifi..please help?

Since you have already done some sort of reset on your Airport Express, you might as well make sure it was a "hard reset" - follow the instructions for a hard reset found at:
http://docs.info.apple.com/article.html?artnum=108044
Since your Mac is running Leopard, you need to configure the Airport Express using the Airport Utility found in the Applictions->Utilities folder. You cannot install the old software that was supplied on the CD you got with the Airport Express.
In future - if you do something bad with network settings on your Mac, do NOT try to fix it with the Airport Utility. The Airport Utility is only used to configure the Airport Express - and since the problem you have created is on the Mac and not the Airport Express, there is no need to be using the Airport Utility and especially there is no need to be resetting the Airport Express.

Internet is not working on cellular data after updating 8.0.2 in iphone 5s , wifi connectivity is fine , but no internet connection error message is start blinking even after cellular data is on , please help .

I am using iPhone 5s , internet is not working on cellular data even after it is on , wifi is working properly . Please help apple team.

Hello Mario:
I'm actually surprised that Apple continues to push out 8.02 without addressing these issues. The problem will only anger more users and certainly finger-poking at Airplane Mode isn't the answer. This is an iOS8 code problem and no amount of 'resetting' is providing a reliable fix/solution that sticks.
These issues with loss of cell connectivity, apps that have lost functionality, etc., which are all directly associated to the arrival of iOS8, are so widespread in the user community and pervasive within individual iPads that it's clear there are significant fundamental problems with this release. Given the problems are so blatant, it's fair to ask the question of how they got by the Apple validation team.
What is the status at Apple on rolling out a fully V&V'd version to resolve this? Respectfully, when it comes to some of my more useful apps, my personal iPad has become a paperweight. The user forums are full of these iOS8 complaints for several weeks and there doesn't seem to be a competent answer from Apple. Even a "We're aware and we're working on it" would be well received.
Any hope that you can provide will be appreciated. (I'll be monitoring the thread on my Dell laptop because, well, my iPad is i-Inop!).
Thanks!

IMessage is not working over wifi. I need HELP D:

My iMessage is not working over wifi. But it's only at my house. Actually it worked a while ago but then it stopped working.
The browser, email, app store, youtube and any other apps are working just fine over the wifi. It's only my iMessage. It won't send any message. It say message not delivered. Does anybody what is going on and what can I do to fix it? Thanks, before. (:

I recently moved my library on my time capsule
You mean you moved your music files to the external. The library is more than the music files.
Just copy the \Music\iTunes\ folder from internal to the Time Capsule.
Add the Time Capsule to your Login items in System prefs -> Accounts.
Hold Option and launch iTunes and select *Choose library*.
Select the iTunes library file int ehiTunes folder on the Time Capsule.
It is hte samae library you have previously. All artwork playlists, ratings, songs, movies, etc. will be there.
Genius is already there so nothing needs to be done.

Facebook App not working over 3G, but works over Wi-Fi.

I have a BlackBerry® Curve™ 3G 9330 Social Messaging Ready smartphone. My current software version is 6.0 Bundle 2333. My Facebook application worked perfectly fine when I got the phone a few months ago over the Verizon 3G network and Wi-Fi, but when I recently updated Facebook to version 2.0.0.58, it does not work over 3G anymore. But everytime I try to connect via 3G it says "We cannot reach the Facebook server at this time. Please try again later. (100)" It does however still work over Wi-Fi.
I have tried various attempts to fix it: uninstalling the App and re-installing it and also removing the battery and putting it back in (hard reset), but nothing has worked.
Is anyone else have this same issue? Is there a way to restore my Blackberry to its factory settings so that I can just use the older version of the Facebook App [that was previously installed]?
Thank you.

Hey metalhourse90,
I can see from your PIN that you currently don't have browsing services included in your data plan. I would advise contacting your wireless provider to have this enabled.
Thanks,
-FS
Come follow your BlackBerry Technical Team on Twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.
Click Solution? for posts that have solved your issue(s)!

BBM not working over mobile network

BBM on Q10 not working over mobile network.
Working only via wifi.
Carrier: KSA STC
OS: Official 10.2.1.2102
Please help.
Its very disappointing that bbm is not working on bb.

Can you try sending a BBM friend a PIN message, not in BBM, but in your Compose Message > PIN.
You will need that contact's BBM PIN number...
Do you see the message sent, and does it hae a D beside or R afterwards?
1. If any post helps you please click the below the post(s) that helped you.
2. Please resolve your thread by marking the post "Solution?" which solved it for you!
3. Install free BlackBerry Protect today for backups of contacts and data.
4. Guide to Unlocking your BlackBerry & Unlock Codes
Join our BBM Channels (Beta)
BlackBerry Support Forums Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

Adobe creative cloud product online help not working. Any idea what is the reason ??

Adobe creative cloud product online help not working. Any idea what is the reason ??
I have to manually copy pdf file to open help for all suite....

Please try another browser, if still it is not working, check the internet connectivity http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
In case the issue is still not resolved, do contact Adobe Support.
Regards
Rajshree

Not working proper cellular network work only wifi

I Have iPhone 5 my phone not working proper cellular network work only wifi connection we are try will everything but not solve my problem

maheshpl80 wrote:
we are try will everything but not solve my problem
What all of "Everything" have you tried????

Home button in HTML Help Not Working

My Home button in HTML Help Not Working.
Also the Home option from the Options menu does not work. I receive the "This program cannot display the webpage" error.
I have the correct file name (titlepg.htm) in the Advanced Windows Ptoperties "Default" field and the "Home" field. However, I still receive the "This program cannot display the webpage" error.
How can I correct this situation? Thanks, your help is appreciated!

Can you post a couple of screen captures please?
One where you show the Project Explorer with the desired topic in view. Another where you show the dialog where you specify the Home page destination.
Another thing you may wish to try is to define a totally new window, assign the values there and ensure you point to the window in the Single Source Layout recipe.
Oh, and one other thing. Are you using RoboHelp HTML or RoboHelp for Word?
Cheers... Rick
Helpful and Handy Links
RoboHelp Wish Form/Bug Reporting Form
Begin learning RoboHelp HTML 7, 8 or 9 within the day!
Adobe Certified RoboHelp HTML Training
SorcerStone Blog
RoboHelp eBooks

Safari 8 hover does not work over google map location pins

OS X 10.10.1, Safari 8, Java 8-25
I have always had little odd things not work when using safari on a large % of websites I visit, the latest issues are
no response when hovering over google map location pins, travel site calendars not opening or responding to mouse, drag and drop
show the item being dragged several inches away from the actual pointer, some links don't respond, missing items
or odd layout with print or pop ups going off the screen on some website pages, zooming in and out does not help. I have none
of these issues when using Firefox or Chrome. Been using Safari for 4 years now.

Have you tried a PRAM and an SMC reset? They're longshots, but don't take long to try.
PRAM: http://support.apple.com/kb/HT1379
SMC: http://support.apple.com/kb/HT3964
Have you run Apple Diagnostics from the disc(s) that shipped with the computer?
Since the problem occurs in all browsers, it still sounds like a video hardware or video RAM or maybe a software issue having to do with layers and rendering.
The map layers aren't getting rendered, or if rendered, aren't getting displayed.
Do you have any browser add-ins? Pop-up blockers?
Since you have two video chipsets, it's possible that might be related to the issue.
This non-Apple website talks about switching between chipsets on the various MacBook models so equipped, and points to a free 'donationware' program for the menubar that lets you easily switch between chipsets:
http://www.everymac.com/systems/apple/macbook_pro/macbook-pro-unibody-faq/macboo k-pro-unibody-switching-between-graphics-processors.html
Trying to think of other software that might help pinpoint the problem, does the iPhoto Slideshow 'Shatter' template work? Working properly, it 'shatters' images into several color layers and rotates them in and out to build and deconstruct photos.

Search function in Help not working in any application

The Search function is not working in any application's Help. Upon entering the terms I need help for I get a hang at "Searching..." but never any result. This problem started sometime in the last year or so. Prior to that the search function in Help worked fine. My network connectivity is excellent.
I recently reinstalled OS X 10.5 but I'm sure the problem existed before that and persisted after the reinstall.
The reinstall was due to upgrading to 10.7 and only then finding that I had lost needed functionality, but I don't think this has anything to do with the current problem. All other aspects of Help seem to be working fine
I don't find any reference to this problem anywhere so I'm hoping someone can help with my Help(!) problem. Thanks in advance.

Try running your Leopard install disk again, as well as the 10.5.8 combo updater. This might reinstall any 'missing bits'.
You can do this without deleting the hard drive, just install straight over your existing system, but close all applications and external devices first.
Or you could also do this via an Archive and Instal:
How to Archive & Install:
http://support.apple.com/kb/HT1710
and this also:
http://support.apple.com/kb/HT2196?viewlocale=en_US
This document explains how to correctly reinstall a prior version of Mac OS X in the event that other troubleshooting does not resolve an issue:
http://docs.info.apple.com/article.html?artnum=25404
BUT: Don't install older versions of Mac OS than what came with your computer:
http://support.apple.com/kb/HT2186?viewlocale=en_US

I-pod still not working over year after malfunction.

I would like to either know how to fix my ipod, how i can trade mine in for a new one, or get my money back for my ipod nano because i hav been on the support section of the apple website, posted questions and even tried everything they have suggested to fix my ipod and none of it worked. I'm just sick and tired of my ipod not working and tired of spending countless hours wasting my time trying everything people have offered. My ipod first gen. black 2GB nano has not worked in over a year now and turns on shows menu and even goes into the files. I hook it up to my computer( after syncing my ipod and being told the music is corrupted deleted all the music off it, then installed itunes 7), and the computer doesn't read it is even there, either does itunes (I've done this to a relatives computer as well and same results). Im not blaming Apple for anything but it is mysteriously funny how a few days(literally, not weeks or months) after my warranty/support runs out, my ipod stops working. I would just like to figure this out and get back to listening to my favorite music on my favorite listening device. Please, some-one help with this and let me know of anyone i can contact about this, no more suggestions, i'm sure ive tried them all.
Message was edited by: Ipod-nano-man

*My ipod first gen. black 2GB nano has not worked in over a year*
It's been broken over a year and you are just now getting around to doing something?
*it is mysteriously funny how a few days(literally, not weeks or months) after my warranty/support runs out, my ipod stops working.*
So it's been broken over a year and the one year warranty ran out before it broke. That's two years. This would mean you purchased it before the 1st gen Nano was even released (12 October 2005).
You don't want suggestions so you can get out of warranty service thru Apple for $79 here -> http://depot.info.apple.com/ipod/
So you have successfully Restored it?
You noted you have tried it on different computers but have you tried a different cable?

WebDAV not working over SSL on CSS11503

SOME HISTORY
As you may recall we had an issue with interoperability between our WebCT Vista application and the Cisco CSS11503 Load Balancer. In a nutshell the Load Balancer would inject custom HTTP headers into HTTP packets, but only into the first HTTP packet of a TCP session. With your help we've learned that Cisco will change this in the August release of the CSS software.
OUR NEW PROBLEM
We are now having a related problem. In short, we cannot get WebDav to work over SSL. That is, when connect from Client to Load Balancer via SSL, and then Load Balancer to Web Server via plaintext, our application fails. Conversely, when we maintain a clear text connection straight through from Client to Web sever WebDav works.
After doing some network traces of WebDav connections both with and without SSL I think we've discovered the cause of the problem: the Load Balancer fails to add our custom HTTP header "WL-Proxy-SSL: true" to HTTP "PROPFIND" requests, even though it correctly adds them to the HTTP "OPTIONS" requests.
HOW WE CONFIGURED THE LOAD BALANCER
We configured our Load Balancer with the Global configuration of
http-method parse RFC2518-methods
and with the command
ssl-server 20 http-header static "WL-Proxy-SSL: true"
so that the header "WL-Proxy-SSL: true" will be passed with the HTTP headers used for WebDav was well as with the 'standard' HTTP headers "GET, POST, HEAD", etc.
Below is the relevant passage from the "CSS Command Reference" at
http://www.cisco.com/univercd/cc/td/doc/product/webscale/css/css_750/cmdrefgd/cmdgloba.htm#wp1432749
======================================================================
"By default, a Layer 5 content rule supports the HTTP CONNECT, GET, HEAD, POST, and PUT methods. Unless configured, the CSS recognizes and forwards the following HTTP methods directly to the destination server in a transparent caching environment, but does not load balance them:
OPTIONS, TRACE, PROPFIND, PROPPATCH, MKCOL, MOVE, LOCK, UNLOCK, COPY, and DELETE.
When you enable the CSS to support all RFC-2518 methods, the CSS parses the Request-URI field in an attempt to match a Layer 5 rule. If the contents of the Request-URI field are not in a compliant format of an absolute URI or an absolute path, the CSS tries to match the field to the next best wildcard ("/*") rule. If the match fails, the CSS attempts to match the Layer 4 rule, and then the Layer 3 rule."
========================================================================
I interpret this to mean that when we configure "http-method parse RFC2518-methods" that the load balancer will treat all the HTTP headers in the group "OPTIONS, TRACE, PROPFIND, ...", etc the same as the "standard" HTTP headers "GET, POST, HEAD", etc.
As I said earlier our network traces show that the "WL-Proxy-SSL: true"
header present in the HTTP header OPTIONS but *not* in the header "PROPFIND".
A BUG IN THE CSS COMMAND PROCESSOR?
By my reckoning, this behaviour must be a bug in the CSS Command processor, because whatever the CSS does for the "OPTIONS" header it should also do for the "PROFIND" header.
ATTACHMENTS
I've included three attachments.
trace.txt
- text output from Ethereal of the network trace
on the web server, with comments.
webdav.ssl.snoop
- the original network trace in Sun's 'snoop' format.
css.2.cfg
- the running configuration on the CSS11503
Thanks in advance for your help.

Hi
I finally discovered what is the issue here. In appears that in case of unsigned applets, the code is unable to access SunJCE provider which contains most of the ciphers used by SSL protocol. This means that a session with SSL server is broken and effectively applet is not initialised.
This problem is related to configuration of JRE under linux due to export control restrictions. Unfortunately I don't know how to make JRE to use SunJCE by default.
As a workaround I have set up the following policies using Policy Manager:
grant {
permission java.security.SecurityPermission "putProviderProperty.SunJCE";
grant {
permission java.lang.RuntimePermission "getProtectionDomain";
grant {
permission java.lang.RuntimePermission "accessClassInPackage.sun.security.*";
I don't know how insecure my actions are, but this definitely fixed problems with applets under SSL / HTTPS.
Feel free to send me your ideas how to fix this issue in more elegant way.
Best,
Marcin

DHCP/IP helper not working over cellular radio

Similar Messages

Maybe you are looking for