DHCP Option 125 ASCII string is too long

[Anonymous]

I am trying to use the DHCP server on the router.  We have Mitel phones here and the Option 125 ASCII string is too long to enter in the GUI or CLI.  How do I get this option string loaded?

[Anonymous]

:

Thank you for asking this question in the support community.  How long is the ASCII string and what trouble are you having with it via the CLI?

Please, do not hesitate to reply to this post with any additional information or questions.  I will be happy to help in any way I can.

Levi

[Anonymous]

Hi Levi,

It is 521 characters long.  It is formatted like this:

"0x00;0x00;0x04;0x03;0x63;0x69;0x64;0x3A;0x69;0x70;0x70;0x68…..”  It contains all the DHCP options for our Mitel 3300 router.

I am using putty to try and enter the string.  When I paste the string in, it adds the string up to a certain number of characters and then I think it overflows the buffer, clears it, then continues.

When I try it via the GUI it just hangs and I have to restart IE.

Chuck Fischer

Director of IT

Advantage Dental

Message was edited by: levi (Removed Contact Information)

[Anonymous · Accepted solution]

Chuck:

Currently, the option <number> ascii <string> command supports simple text (ASCII) with a string of up to 256 characters.  Is there any way you can reduce the number of characters in the ASCII string?

Levi

[Anonymous]

I’ll have to see.  The string came directly from Mitel.

Chuck Fischer

Director of IT

Advantage Dental

Message was edited by: levi (Removed Contact Information)

[jayh]

chuckf wrote:

It is 521 characters long.  It is formatted like this:

"0x00;0x00;0x04;0x03;0x63;0x69;0x64;0x3A;0x69;0x70;0x70;0x68…..”  It contains all the DHCP options for our Mitel 3300 router.

That sure looks like a hex string.  What happens if you store it as hex with the "0x" and semicolons stripped, like:

option 125 hex 000004036369643A69707068...

Try it, see if the Mitel system is happy that way.

[Anonymous]

I tried that first and it wouldn’t pass the 125 option to the phone endpoint properly.  The router took the string but the phones didn’t like it.

Chuck Fischer

Director of IT

Advantage Dental

Message was edited by: levi (Removed Contact Info)

[Anonymous]

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I went ahead and flagged the "Correct Answer" on this post to make it more visible and help other members of the community find solutions more easily. If you don't feel like the answer I marked was correct, feel free to come back to this post to unmark it and select another in its place with the applicable buttons.  If you have any additional information on this that others may benefit from, please come back to this post to provide an update.  If you still need assistance, we would be more than happy to continue working with you on this - just let us know in a reply.

Thanks,

Noor