[c-nsp] DHCP per user features

[Maile Halatuituia]

Hi Mike
I hope someone would able to provide the clue as I am looking for the same thing as well.
At least my issue is how can I authenticate a DHCP client before ip address is being assigned, as in PPPoE ... I understand DHCP lack that but I hope someone would have some working clue.

-----Original Message-----
From: cisco-nsp <cisco-nsp-bounces at puck.nether.net> On Behalf Of Mike
Sent: Thursday, 7 March 2019 10:08 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] DHCP per user features

Hello,


    I have ASR1000 and am terminating subscriber access PPPoE sessions on it. I am making a move twords supporting DHCP for subscriber access and I am trying to envision how to support the same subscriber features I am using under PPPoE.


    For PPPoE, the magic happens in radius. The three primary features I support are:

    Per-user firewall - a configurable packet filter choice (in practice, three choices - no, medium, or high filtering)

    Per-user rate limits - Policing to enforce upload/download speed limits

    Per-user ip assignment - assigning fixed ip address / subnets


    For a DHCP access model, I know I can do magic-foo with my dhcp server using option 82 or circuit-id arguments to select the right values. But these other two features (firewall and ratelimiting) I have no clue how to get this programmed in for the subscriber session. I have tried reading up on 'isg subscriber sessions' which seems to indicate it can do something with dhcp subscribers, but the documentation is really difficult and I find no real examples for same. It also states per-user firewall is not supported nor is policing.


    Any clues would be most appreciated....

Mike-





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