From 00d0d536eb40324cffd3857fc603bb6e1e15eb27 Mon Sep 17 00:00:00 2001 From: Denys Fedoryshchenko Date: Wed, 28 Oct 2026 20:16:22 +0200 Subject: docs: describe per-session IPv6 DNS RADIUS attributes Signed-off-by: Denys Fedoryshchenko --- docs/pppoe_radius.md | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'docs') diff --git a/docs/pppoe_radius.md b/docs/pppoe_radius.md index 4c4f4cb9..edacdb7d 100644 --- a/docs/pppoe_radius.md +++ b/docs/pppoe_radius.md @@ -39,6 +39,12 @@ These attributes control the IPv6 configuration negotiated via IPv6CP and DHCPv6 * Adds a route to the client session for the specified IPv6 prefix. * Format: `2001:db8::/32 gateway metric` +* **DNS-Server-IPv6-Address** (169, RFC 6911) + * Assigns an IPv6 DNS server to this session. Repeat the attribute for multiple servers. + * Assigned servers replace the `[ipv6-dns]` defaults for the session. Sessions without assigned servers use those defaults. + * Enable `ipv6_nd` to advertise the servers through RDNSS, `ipv6_dhcp` to return them through DHCPv6 DNS_SERVERS, or both as needed. + * The list is not limited to three servers; each reply includes as many as fit in its packet buffer and logs a warning if servers are omitted. + ## Routing * **Framed-Route** (22) -- cgit v1.2.3