Support for DHCPV6 and CCC options for PacketCable 1.x Devices

Brzozowski, John John_Brzozowski at Cable.Comcast.com
Tue Apr 22 15:56:36 UTC 2008


I will try and get back to you

Thanks,

John
609-377-6594

----- Original Message -----
From: dhcp-users-bounce at isc.org <dhcp-users-bounce at isc.org>
To: dhcp-users at isc.org <dhcp-users at isc.org>
Sent: Tue Apr 22 11:15:47 2008
Subject: Re: Support for DHCPV6 and CCC options for PacketCable 1.x Devices

On Tue, Apr 22, 2008 at 04:17:50PM +0200, Marcus Goller wrote:
> option space docsis code width 2 length width 2;

bleah, i still don't like how this reads, but i'm not sure how to
do this syntax otherwise.

> option vsio.docsis code 4491 = encapsulate docsis;
> option docsis.ccc code 2170 = {integer 16, integer 16, ip-address, integer
> 16, integer 16, ip-address};
> option docsis.ccc 1 4 1.1.1.1 2 4 2.2.2.2;
> 
> There are probably better ways, but that might get you started.

you should be able to treat the ccc option as yet another layer of
encapsulation;

	option space ccc code width 2 length width 2;
	option ccc.first code 1 = ip-address;
	option ccc.second code 2 = ip-address;

	option docsis.ccc code 2170 = encapsulate ccc;

	option ccc.first 1.1.1.1;
	option ccc.second 2.2.2.2;

vsio->docsis is only one layer of indirection, it's possible there is
a bug when there are more than one layer.  it's supposed to work, but
we've found quite a few corner cases already testing configs like
these...

-- 
David W. Hankins	"If you don't do it right the first time,
Software Engineer		you'll just have to do it again."
Internet Systems Consortium, Inc.	-- Jack T. Hankins



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