network: NDisc does not require MAC address

This effectively revert ba4c7184b320bb8698d470530d46a6c94641cc6e.

Fixes #23546.

diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index f66745a4ff063274b1c26f14d037bd6f16c9dea3..8ace451f7fde861455ee82d0fa958736f685e8fe 100644 (file)
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -38,12 +38,6 @@ bool link_ipv6_accept_ra_enabled(Link *link) {
         if (link->iftype == ARPHRD_CAN)
                 return false;
 
-        if (link->hw_addr.length != ETH_ALEN && !streq_ptr(link->kind, "wwan"))
-                /* Currently, only interfaces whose MAC address length is ETH_ALEN are supported.
-                 * Note, wwan interfaces may be assigned MAC address slightly later.
-                 * Hence, let's wait for a while.*/
-                return false;
-
         if (!link->network)
                 return false;
 
@@ -1106,10 +1100,6 @@ static int ndisc_process_request(Request *req, Link *link, void *userdata) {
         if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED))
                 return 0;
 
-        if (link->hw_addr.length != ETH_ALEN || hw_addr_is_null(&link->hw_addr))
-                /* No MAC address is assigned to the hardware, or non-supported MAC address length. */
-                return 0;
-
         r = ndisc_configure(link);
         if (r < 0)
                 return log_link_warning_errno(link, r, "Failed to configure IPv6 Router Discovery: %m");