From 3253864641e797809a99401174688507a01c1255 Mon Sep 17 00:00:00 2001 From: Yuxiang Zhu Date: Thu, 21 Jul 2022 07:31:28 +0000 Subject: T4550: router-advert: Add deprecate-prefix & decrement-lifetimes options DeprecatePrefix and DecrementLifetimes options in radvd is useful in a DHCPv6-PD environment to accommodate prefix changes from ISP's delegating router. Though there is currently no integration between the DHCP PD client (wide-dhcpv6-client) and radvd, it could be a good start point to have the 2 options configurable by the user. https://phabricator.vyos.net/T4550 - deprecate-prefix: Upon shutdown, deprecate the prefix. This is useful in a DHCPv6 PD environment: When ISP re-assigns a new prefix, deprecate the old prefix that was advertised. - decrement-lifetimes: Decrement the values of the preferred and valid lifetimes for the prefix over time. This is also useful in a DHCPv6 PD environment to keep the advertised prefix's lifetimes in sync with the prefix from delegating router. --- data/templates/router-advert/radvd.conf.j2 | 2 ++ 1 file changed, 2 insertions(+) (limited to 'data') diff --git a/data/templates/router-advert/radvd.conf.j2 b/data/templates/router-advert/radvd.conf.j2 index ed15b32f0..a464795ad 100644 --- a/data/templates/router-advert/radvd.conf.j2 +++ b/data/templates/router-advert/radvd.conf.j2 @@ -50,6 +50,8 @@ interface {{ iface }} { AdvValidLifetime {{ prefix_options.valid_lifetime }}; AdvOnLink {{ 'off' if prefix_options.no_on_link_flag is vyos_defined else 'on' }}; AdvPreferredLifetime {{ prefix_options.preferred_lifetime }}; + DeprecatePrefix {{ 'on' if prefix_options.deprecate_prefix is vyos_defined else 'off' }}; + DecrementLifetimes {{ 'on' if prefix_options.decrement_lifetime is vyos_defined else 'off' }}; }; {% endfor %} {% endif %} -- cgit v1.2.3