It appears the issue is that the client is bound back to wlan0 on receiving RADIUS message from the server after 4addr mode has been activated previously upon association:
….
Enable 4-address WDS mode for STA 00:06:3d:0a:a8:0a (aid 1)
nl80211: Set WDS STA addr=00:06:3d:0a:a8:0a aid=1 val=1 name=wlan0.sta1
nl80211: Create interface iftype 4 (AP_VLAN)
nl80211: Ignored event (cmd=7) for foreign interface (ifindex 23 wdev 0x0)
nl80211: New interface wlan0.sta1 created: ifindex=23
nl80211: Add own interface ifindex 23 (ifidx_reason -1)
nl80211: if_indices[16]: 11(19) 19(-1) 23(-1)
nl80211: wlan0[19]: set_sta_vlan(00:06:3d:0a:a8:0a, ifname=wlan0.sta1[23], vlan_id=0)
RTM_NEWLINK: ifi_index=23 ifname=wlan0.sta1 operstate=2 linkmode=0 ifi_family=0 ifi_flags=0x1002 ()
….
….
wlan0: RADIUS Received RADIUS message
wlan0: STA 00:06:3d:0a:a8:0a RADIUS: Received RADIUS packet matched with a pending request, round trip time 0.00 sec
RADIUS packet matching with station 00:06:3d:0a:a8:0a
wlan0: STA 00:06:3d:0a:a8:0a IEEE 802.11: binding station to interface 'wlan0'
nl80211: wlan0[19]: set_sta_vlan(00:06:3d:0a:a8:0a, ifname=wlan0[19], vlan_id=0)
MS-MPPE-Send-Key - hexdump(len=32): [REMOVED]
MS-MPPE-Recv-Key - hexdump(len=32): [REMOVED]
…
Following seems to fix the issue:
diff --git a/src/ap/sta_info.c b/src/ap/sta_info.c
index b1fde3c..56e1bf8 100644
--- a/src/ap/sta_info.c
+++ b/src/ap/sta_info.c
@@ -986,6 +986,9 @@ done:
int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
{
+ if (sta->flags & WLAN_STA_WDS)
+ return 0;
+
#ifndef CONFIG_NO_VLAN
const char *iface;
struct hostapd_vlan *vlan = NULL;
Please advise if above is the correct fix or if there is a better alternative.
Thanks
Ajay
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