[Kea-users] Parsing Option 82

Christian Kratzer ck at cksoft.de
Tue Jul 4 14:13:15 UTC 2017


Hi,

On Tue, 4 Jul 2017, Gokulakrishnan Gopalakrishnan wrote:
> I'm trying to print and parse Option 82 but I couldn't understand the
> format in which it is received. My 'option->toText()' print this
> type=082, len=024:,
> options:
>  type=001, len=014: 01:0c:45:74:68:65:72:6e:65:74:31:2f:32:39
>  type=002, len=006: 04:62:73:56:13:bc
>
> Can someone help me to understand this value?

Option82 has suboptions as defined in: https://tools.ietf.org/rfc/rfc3046.txt

Suboption 1 is circuit-id.

Suboption 2 is remote-id.

So you seem to have a circuit-id of: 01:0c:45:74:68:65:72:6e:65:74:31:2f:32:39 and a remote-id of: 04:62:73:56:13:bc.

Also they seem to be binary.

They could also be in ascii.

Depends on the relay agent inserting the options.

Greetings
Christian

-- 
Christian Kratzer                   CK Software GmbH
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