03-18-2010 02:56 PM - edited 03-21-2019 02:19 AM
ok ... this is a very weird problem. to me at least.
i have two DHCP groups on an UC520. one for the clients (VLAN 1), one for the phones (VLAN 100).
every SPA 525G gets an IP from the correct DHCP group, NO MATTER WHICH PORT. every 7975 gets an IP from the wrong DHCP group (the client group, the one missing the group 150 option for the TFTP server and stuff...), again, no matter which port. i'm pretty positive the ports are trunked to their respective VLANs (or else the 525Gs wouldn't work at all).
any ideas?
thanks,
Tom
Solved! Go to Solution.
03-21-2010 03:09 PM
Hi Tom,
Firstly: I am not sure if you got any of my Offline MSN messages, they all seemed to keep bouncing back at me :(
Secondly: I decided against writing up a new config for you on the basis that there was just too much missing out of the config currently on that system, due to it having no BVI or any proper Vlan configuration, i thought i would be too dangerous to guess what these should be. Since i dont know the network and your half way across the other side of the universe ;) i thought about what would be the best process for you to get things working as they should be.
Steps to follow:
This whole thing should take about 3-5 hours to do, for me to re-write your config for you and then have you upload it to the system would actually probably take me much longer as i would need to work it up on man lab system and debug the daylight out of it, and even then once it is on that box it still might not run right.
Simply put i am surprised that system is running the way it is, to me it is missing way to much crucial stuff, how the current phones are registering without giving you grief amazes me, but with all the stuff missing out of their such as your BVI interfaces and Vlan mapping, explains to me why the 7975 phones are not registering, the 525's work differently so i can kind of expect them to register in that environment.
I would have loved to be able to do this for you, to help you out, if only you were not so far away :)
Either way i hope you get it resolved and do you take my suggestion on board to scrap the current config and rebuild from scratch, your headaches now and also into the future will be much less if any at all ;)
Cheers,
David.
03-21-2010 03:09 PM
Hi Tom,
Firstly: I am not sure if you got any of my Offline MSN messages, they all seemed to keep bouncing back at me :(
Secondly: I decided against writing up a new config for you on the basis that there was just too much missing out of the config currently on that system, due to it having no BVI or any proper Vlan configuration, i thought i would be too dangerous to guess what these should be. Since i dont know the network and your half way across the other side of the universe ;) i thought about what would be the best process for you to get things working as they should be.
Steps to follow:
This whole thing should take about 3-5 hours to do, for me to re-write your config for you and then have you upload it to the system would actually probably take me much longer as i would need to work it up on man lab system and debug the daylight out of it, and even then once it is on that box it still might not run right.
Simply put i am surprised that system is running the way it is, to me it is missing way to much crucial stuff, how the current phones are registering without giving you grief amazes me, but with all the stuff missing out of their such as your BVI interfaces and Vlan mapping, explains to me why the 7975 phones are not registering, the 525's work differently so i can kind of expect them to register in that environment.
I would have loved to be able to do this for you, to help you out, if only you were not so far away :)
Either way i hope you get it resolved and do you take my suggestion on board to scrap the current config and rebuild from scratch, your headaches now and also into the future will be much less if any at all ;)
Cheers,
David.
03-21-2010 11:34 PM
David, once again thanks for your ongoing support.
right now, as a temporary solution, i removed all but the voice VLANs from those ports where the 7975s are connected. this works so far. i'm not planning on connecting workstations to the phones anyway, as they are connected to a separate switch.
also, even though i could swear my tftp loads definition was correct i obviously fatfingered something, and your definition was the one that really worked. having the correct tftp loads also recovered the bricked 7975, thank you very much for that.
once i have the time to i will start over from scratch, but i definitely won't use the CCA or any other stupid GUI that messes up everything ;)
thanks,
Tom
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