On 7/23/2024 13:23, Roy Marples wrote:
Hi---- On Tue, 23 Jul 2024 18:11:18 +0100cross+free...@distal.com wrote ----tl;dr; anyone have a good IPv6 network setup based on an IA_PD from their provider? Any details or advice to share? The current router is x86_64 FreeBSD 11.x, but I’m building the FreeBSD 14.1 system to replace it now. What to install on it for this is a pending question. Hello all. I have been running a FreeBSD router for years and years. I have this year been trying to figure out how to use an IPv6 allocation from my provider (Verizon FiOS). They are using the PD feature of DHCPv6 to give a delegation, and not given an address (NA) when asked. There are, unfortunately, _many_ programs that can help me with this, and google yielded no clear best-path. I have not been able to get ISC dhclient to work for me so far, and I did get dhcpcd working, but only with command-line options rather than config file, and that application doesn’t have the smarts to configure things based on the PD, so I’d have to code all of that myself.I'm upstream for dhcpcd. All options related to PD are configurable in the dhcpcd.conf(5) configuration file. There are also some examples. What are you struggling with specifically? Roy
Hi Roy;I'd like to replicate this that is currently being sent up via dhcp6c, which is not quite-clear to me from the docs on how to do that.
# # This configuration will attempt to get /56 or a /60 from the # ISP and assign a /64 internally. # Note that if you have a /60 you can have four /64s defined; if you have a # /56 then obviously you can have 16 internal networks. For most "house" # size networks four separate delineations is enough, for most "moderate" # sized corporate environments 16 is enough. BE AWARE THAT THE SLA-LEN MUST # MATCH THE DIFFERENCE BETWEEN THE LOCAL PREFIX AND THE REMOTE ONE! If # you ask for a /56 then sla-len is 8, if you ask for a /60 then the sla-len# is 4 (difference between the requested prefix length and 64, respectively.)
#
interface igb0 {
send ia-pd 1;
send ia-na 1;
send rapid-commit;
script "/usr/local/etc/dhcp6c.script";
};
id-assoc na 1 {
};
id-assoc pd 1 {
prefix ::/56 1800;
prefix-interface igb1 {
sla-id 0;
sla-len 8;
};
};
igb1 is the "normal" internal network; igb0 is the external one.
The ISP hands out /56s (although at one time I could choose either a /56
or /60); I have routines in the script file that then generate dynamic
updates for DNS so the gateway has its pointers updated if/when the
address changes (I run my own zones)
Its not entirely-clear how to replicate that in the config file for dhcpcd; I can figure out the script I'm sure, but the base config is not clear to me.
-- Karl Denninger k...@denninger.net /The Market Ticker/ /[S/MIME encrypted email preferred]/
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