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DHCP lease expired error

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Matt85

Matt85

IS-IT--Management
Jul 19, 2005
253
US
2005-DEC-20 06:15:52 DHCP Lease expired: IP/MAC = 192.168.1.100 / 0002
3fcf025b

2005-DEC-20 03:35:53 DHCP Lease expired: IP/MAC = 192.168.1.111 / 0010
6084a470

2005-DEC-19 23:05:52 DHCP Lease expired: IP/MAC = 192.168.1.27 / 00e01
84060d1

2005-DEC-19 21:45:51 DHCP Lease expired: IP/MAC = 192.168.1.101 / 0011
1128bfef

After I upgrade to release three i began getting a lot of these errors. are these bad? I mean they just mean the lease expired but why didn't it renew them? is it because they already got a new lease after the upgrade and it had the old database?

sx200icp v3

Matthew McGowan
Reynolds Park
 
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Are any of your sets not working?

I would think that you are correct, the sets have new IP addresses. I have not seen this, mainly because I didn't think to check the error log after any upgrade (each system seems to have been working great.)

 
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One 5220 had a very long delay when i pressed a button and then finally lite up but never connected to the other user. After reboot it was fine. Another phone was completely disconnected and didn't even have a dial tone. Do you think its the phones or the computers. I didn't even think it about it being the phones till you mentioned it.

Matthew McGowan
Reynolds Park
 
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Actually, once I look at your original posting, I realize that I missed something. All of the MAC addresses listed are non-Mitel IP set MACs. That means that the computers, or nic cards, were not on the network at the time of the upgrade. Possibly laptops that went home. I suspect that the IP set issues you had did not have anything to do with the DHCP errors you experienced. That is of course unless the nic cards were connected to the IP sets that did not boot properly (highly unlikely).

I have had to re-boot the odd IP set after upgrade, no real big deal as it is an easy fix.

 
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READ NEWEST 20
2005-DEC-21 07:25:52 DHCP Lease expired: IP/MAC = 192.168.1.26 / 08004
6493e19

2005-DEC-21 06:20:53 DHCP Lease expired: IP/MAC = 192.168.1.100 / 0002
3fcf025b

2005-DEC-21 05:20:53 DHCP Lease expired: IP/MAC = 192.168.1.28 / 000bd
b9715ae

2005-DEC-21 03:55:53 DHCP Lease expired: IP/MAC = 192.168.1.111 / 0010
6084a470

2005-DEC-21 01:10:54 DHCP Lease expired: IP/MAC = 192.168.1.23 / 00080
d62aeca

2005-DEC-20 22:05:53 DHCP Lease expired: IP/MAC = 192.168.1.101 / 0011
1128bfef

2005-DEC-20 22:00:52 DHCP Lease expired: IP/MAC = 192.168.1.27 / 00e01
84060d1

2005-DEC-20 21:25:52 DHCP Lease expired: IP/MAC = 192.168.1.108 / 000c
41e8d25e
New errors and people complaining to me about their internet not working! How do you know all of these are computers? Do all mitel phones MAC start with 08? I need Tech support! AHHHHHHHHHH

Matthew McGowan
Reynolds Park
 
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All Mitel IP sets will start with 00 08 0F. This is the unique range that Mitel was given by the governing body, not sure who that is, so that there are no conflicts with other vendors. You can check the bottom of each set to confirm that if you want.

I am assuming that you are using the 200ICP as a DHCP server for your IP sets AND Data devices seeing as you have MACs that are not Mitel devices. No problem with that, as long as you are providing the proper options for the router and a DNS server (sometimes the same IP as the router).

If this is not how you have your network setup, then you may have a DHCP server conflict in where your Data devices are requesting a DHCP address and there are two DHCP servers trying to provide one. Sometimes the 200ICP will be first, sometimes the other DHCP server will be first. I have had this problem before. It manifested itself a bit different than your problem though. Make sure that the both DHCP servers only have access to the VLAN that they are supposed to support. I sure hope you are employing VLANing if you have integrated networks. I have found that this problem is because of the layer 2 switch port setups for the devices that the DHCP servers are connected to.

I would go into CDE programming form 47 and subform 2 for DHCP. There I would go to the lease viewer and delete all the entries in there that belong to devices that are not Mitel IP sets. This will delete the MAC address of those devices from the the records in the 200ICP. Then I would have the IT dept or yourself do an IPCONFIG /RELEASE then an IPCONFIG /RENEW command to renew all IP addresses for your non Mitel IP set devices. This will fill the DHCP lease form with devices that have recently requested a DHCP address from the 200ICP.




 
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No I have it all set up properly because it was working correctly before. I have the ICP as the DHCP and have it set up the same way as in version 2.2. There is no other DHCP on our network. Our Server is turned off and we do not have our router DHCP on either. Is there anyway I can do a downgrade since this is becoming a major problem? Now its assigning the same IP and i'm getting conflicting IP addresses to computers on the network. My dealer hung up on me AGAIN giving me the "I will call you back in a minute" but never does!!!!!!!!!! I called him 3 days in a row and he has said the same thing every time.

Matthew McGowan
Reynolds Park
 
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Wow, you have some serious issues. I really don't know if you can go backwards with the software, I have never tried it. Anyone have any idea?

It seems that the DHCP part of your network is the problem, so focus on the DHCP forms in the 200ICP. These are the steps I would take to try and solve the problem.

1) Hopefully you don't have a 24 hr operation. Wait until everyone (or atleast most everyone) has left for the night. Disconnect the 200ICP from your network. You would be best served at this point to directly connect a PC/Laptop to the 200ICP LAN port with a crossover cable and statically assign an IP address for your NIC card.

2) Login to the Mitel and delete ALL the enties in the DHCP lease form, including the IP sets.

3) Perform an FTP backup to your PC.

4) Remove power from the Mitel and reboot after a few moments. Do not connect the Mitel back to the network (yet).

5) Remove power from your network switches/Routers and reconnect the Mitel 200ICP to the network while the network is down. When the Mitel has finished rebooting, apply power back to the network Routers, then the switches. Due to the network being down, your office PCs and other devices will have lost network connection. When the network comes back up, your PCs and IP sets will start requesting new DHCP addresses. The Mitel will then provide the DHCP to those devices. Because you have deleted all the entries in the DHCP lease form, the Mitel should not be handing out any duplicate address because the Mitel will provide the addresses on a first come - first served basis from the range that is programmed.

I would check the lease time in the DHCP Range Options. If most of your devices do not move or get disconnected, then I would go for a longer lease time like 1-2 WEEKS. I do believe the default is 8 hours. Make sure that the range of IP addresses do not conflict with the IP addresses of devices that are statically assigned. The FTP backup is a just in case step. You don't really need it, but... it is nice to have a backup that does not have DHCP leases in it.


If at this point you are still getting IP address conflicts, then you will most likely have to get your vendor to engage Mitel 2nd level support.

GOOD LUCK! I am going on holidays for a while, so I don't think I will get a chance to help further until I get back.




 
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One other thing you could try is that once you have the FTP backup after deleting all the DHCP entries in the lease form, re-install the Rel 3 software. Only this time do the install not as an LOCAL upgrade but as a new system. Then restore the FTP backup. IF there was any corruption, this may help. Try the first posting first though.

 
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I tried what you said in the first step before about powering everything down and deleting all the leases already but i will do it 1 more time. I think your second suggestion is a good idea. I just need to get a card reader/writer. My dealer is the one that has that. I really appreciate you help. What if I did a v2.2 intial install and then restored? or would the restore not work since the saved database was from v3.

Matthew McGowan
Reynolds Park
 
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I have not tried to down grade a 200 ICP yet, so I do not know if the v3 database will be compatible with the v2.2 software. I personally would not try it with a machine that is currently in use without knowing the outcome or having Mitel Tech Support specifically telling me to do it. Unfortunately for you, you probably don't have access to another one, such as a lab system. I will not be able to try it until late next week as I am engaged out of the office. Perhaps your Dealer (?) may have access. Ya, I know, they don't seem to be very helpful right now. Maybe things will get better once the holidays are finished!


 
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If you had performed a ver 2.2 database backup (as recommended before upgrading) then I would think the process of down-revving should be as simple as performing an Initial Install with 2.2 software and then performing a database restore.

and if you didn't perform a backup before upgrading, well then shame on you.
 
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I did but its old and users might have changed settings, call logs, voicemails etc.

Matthew McGowan
Reynolds Park
 
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what is the most recent release 3 version. I have 3.0.2.8 is this the most recent? or is there a new one with fixes.

Matthew McGowan
Reynolds Park
 
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also i don't have the release note in tech notes and forgot what initial install do i do? I think its default but not sure. choices are premier, default, blank, custom.

Matthew McGowan
Reynolds Park
 
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matt did you get this sorted out I was in Ireland when
you tried to reach me!!
 
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no i did NOT. so far i haven't any complaints about computers i guess they reboot to fix the issue? i'm not sure but the phones seem to be working ok. i don't work on site anymore so i haven't had any first hand experience i just do work for the company remotely until i go back once a month. but next time i get back i need someone to call tech support and see if this is a normal error or not because the alarm doesn't show up on the console it just shows up in the logs for some reason and it didn't show up in version 2.2 so i dunno why it would it 3.0.2.8

Matthew McGowan
Reynolds Park
 
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can't believe that you did not do a full backup
before atempting an upgrade !!
 
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what are you talking about!? i said i did do a full backup i always do a full backup before i do anything and i do a full backup on a monthly basis anyway. i said i didn't want to switch back to 2.2 unless it was necessary because of the system changes that have been make since then like call logs, voicemails, COS opts i might have changed or other programming, etc.

Matthew McGowan
Reynolds Park
 
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I did but its old and users might have changed settings, call logs, voicemails etc.
 
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