disregard my previous message - wrong email list - was answering Kea list with the original DHCP configurations :)
----- Original Message ----- > From: "perl-list" <[email protected]> > To: "kea-users" <[email protected]> > Sent: Wednesday, January 26, 2022 8:22:25 AM > Subject: Re: [Kea-users] Globally cut circuit id option > You can use substring to do that. Here is an example of it in use: > match if substring (option dhcp-client-identifier, 1, 3) = "RAS"; > see also `man dhcp-eval` > substring (data-expr, offset, length) > The substring operator evaluates the data expression and returns the substring > of the result of that evaluation that starts offset bytes from > the beginning, continuing for length bytes. Offset and length are both numeric > expressions. If data-expr, offset or length evaluate to > null, then the result is also null. If offset is greater than or equal to the > length of the evaluated data, then a zero-length data string > is returned. If length is greater then the remaining length of the evaluated > data after offset, then a data string containing all data from > offset to the end of the evaluated data is returned. > ----- Original Message ----- > > From: "egor grijuc" <[email protected]> > > To: "kea-users" <[email protected]> > > Sent: Wednesday, January 26, 2022 4:40:26 AM > > Subject: [Kea-users] Globally cut circuit id option > > Hello. > > We faced a problem with some old equipment. > > We use host database for host reservation > > We make reservation via API. > > In table “host” we use dhcp_identifier_type =2 to match circuit id. > > It works but we have some old equipment that adds some kind of prefix to > > circuit > > id option. > > For example, on switch circuit id was configured to “CHN540579” but on > > packet > > capture we see that switch adds some “prefix” > > Part from capture: > > Agent-Information Option 82, length 23: > > Circuit-ID SubOption 1, length 11: ^A^ICHN540579 > > Question: is it possible to globally cut circuit id optin from end to 9 > > characters? > > _________________________________________________________________________________________________________________________ > > Ce message et ses pieces jointes peuvent contenir des informations > > confidentielles ou privilegiees et ne doivent donc > > pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu > > ce > > message par erreur, veuillez le signaler > > a l'expediteur et le detruire ainsi que les pieces jointes. Les messages > > electroniques etant susceptibles d'alteration, > > Orange decline toute responsabilite si ce message a ete altere, deforme ou > > falsifie. Merci. > > This message and its attachments may contain confidential or privileged > > information that may be protected by law; > > they should not be distributed, used or copied without authorisation. > > If you have received this email in error, please notify the sender and > > delete > > this message and its attachments. > > As emails may be altered, Orange is not liable for messages that have been > > modified, changed or falsified. > > Thank you. > > _______________________________________________ > > ISC funds the development of this software with paid support subscriptions. > > Contact us at https://www.isc.org/contact/ for more information. > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > > Kea-users mailing list > > [email protected] > > https://lists.isc.org/mailman/listinfo/kea-users > _______________________________________________ > ISC funds the development of this software with paid support subscriptions. > Contact us at https://www.isc.org/contact/ for more information. > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > Kea-users mailing list > [email protected] > https://lists.isc.org/mailman/listinfo/kea-users _______________________________________________ ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-users
