Hi,

Deco X75 is sitting behind pfsense. Pfsense fixed Deco X75 main unit MAC address to 10.0.0.41. Deco X75 is in AP mode. Smart DHCP is turned off. Below is the log from Deco X75. Corresponding pfsense DHCP logs are below Deco X75 logs.

Observations

1. Deco X75 receives 7200 secs lease for 10.0.0.41. 

2. Deco X75 sends DHCP requests up to 11 times per hour. That is way too high for a 2-hour lease.

3. pfsense sends DHCPACK to complete the DHCP request.

4. Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] Notify the lan ip changed.

Why would LAN IP be considered changed when it has not?

Suspicion

1. Did Deco X75 receive teh DHCPACK from pfsense?

Mon Aug 14 17:02:57 2023 daemon.err nrd[17890]: bcm_get_fdb_dst failed
Mon Aug 14 17:03:09 2023 daemon.err bandwidth_contr: wl0 get bwchannel:48 bandwidth: 2800
Mon Aug 14 17:03:09 2023 daemon.err bandwidth_contr: wl1 get bwchannel:149 bandwidth: 2000
Mon Aug 14 17:03:17 2023 daemon.err nrd[17890]: bcm_get_fdb_dst failed
Mon Aug 14 17:03:37 2023 daemon.err nrd[17890]: bcm_get_fdb_dst failed
Mon Aug 14 17:03:39 2023 daemon.err bandwidth_contr: wl0 get bwchannel:48 bandwidth: 2800
Mon Aug 14 17:03:39 2023 daemon.err bandwidth_contr: wl1 get bwchannel:149 bandwidth: 2000
Mon Aug 14 17:03:39 2023 daemon.notice nrd[17890]: ar_apinfo_collect[line 1079]: AP sync timer expires!
Mon Aug 14 17:03:58 2023 daemon.err nrd[17890]: bcm_get_fdb_dst failed
Mon Aug 14 17:04:09 2023 daemon.err bandwidth_contr: wl0 get bwchannel:48 bandwidth: 2800
Mon Aug 14 17:04:09 2023 daemon.err bandwidth_contr: wl1 get bwchannel:149 bandwidth: 2000
Mon Aug 14 17:04:18 2023 daemon.err nrd[17890]: bcm_get_fdb_dst failed
Mon Aug 14 17:04:22 2023 daemon.info conn-indicator: Notify inet.up
Mon Aug 14 17:04:23 2023 daemon.info conn-indicator: Notify inet.up
Mon Aug 14 17:04:24 2023 daemon.info conn-indicator: <32330300> Invoke led: conn[1]
Mon Aug 14 17:04:24 2023 daemon.info leds: Event: conn.offline
Mon Aug 14 17:04:24 2023 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)
Mon Aug 14 17:04:24 2023 daemon.info conn-indicator: Notify inet.down
Mon Aug 14 17:04:24 2023 user.notice smartip: [lan]  AP mode AP online status changed(ONLINE --> OFFLINE).
Mon Aug 14 17:04:24 2023 user.notice smartip: [lan] stop domain_login
Mon Aug 14 17:04:24 2023 user.err smartip: [lan] !!ip addr del!! ip addr del 10.0.0.41 dev br-lan
Mon Aug 14 17:04:24 2023 user.notice smartip: [lan] route del default dev br-lan
Mon Aug 14 17:04:24 2023 user.notice smartip: [lan] smartipd restart udhcpc
Mon Aug 14 17:04:24 2023 user.info smartip: [lan] pid is 22485
Mon Aug 14 17:04:24 2023 user.notice smartip: [lan] kill process udhcpc
Mon Aug 14 17:04:24 2023 daemon.err udhcpc[22485]: Received SIGTERM
Mon Aug 14 17:04:25 2023 user.err lua: Error: ssh_connect: Failed to connect: Network is unreachable
Mon Aug 14 17:04:25 2023 user.err lua: Error: connect
Mon Aug 14 17:04:25 2023 user.err lua: Error: ssh_connect: Failed to connect: Network is unreachable
Mon Aug 14 17:04:25 2023 user.err lua: Error: connect
Mon Aug 14 17:04:25 2023 user.err lua: Error: ssh_connect: Failed to connect: Network is unreachable
Mon Aug 14 17:04:25 2023 user.err lua: Error: connect
Mon Aug 14 17:04:25 2023 user.err lua: Error: ssh_connect: Failed to connect: Network is unreachable
Mon Aug 14 17:04:25 2023 user.err lua: Error: connect
Mon Aug 14 17:04:25 2023 daemon.err conn-indicator: [send_query] Failed to send DNS query: Network is unreachable
Mon Aug 14 17:04:25 2023 daemon.info conn-indicator: Notify inet.down
Mon Aug 14 17:04:25 2023 daemon.err udhcpc[28506]: udhcpc (v1.22.1) started
Mon Aug 14 17:04:25 2023 user.notice smartip: [lan] start udhcpc
Mon Aug 14 17:04:25 2023 user.info smartip: [lan] cmd /sbin/udhcpc -i br-lan -p /tmp/udhcpc_br-lan.pid -s dynamic -h deco-X75 -t 6 -m normal -S &
Mon Aug 14 17:04:25 2023 daemon.err udhcpc[28506]: Sending discover...
Mon Aug 14 17:04:25 2023 daemon.err udhcpc[28506]: Sending select for 10.0.0.41...
Mon Aug 14 17:04:25 2023 daemon.info udhcpc[28506]: Lease of 10.0.0.41 obtained, lease time 7200
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] detect sucess to update lanIp and write dns file

Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] Notify the lan ip changed.
Mon Aug 14 17:04:26 2023 user.info smartip: [lan] ubus call client_mgmt update_lan '{ "ipv4_addr": "10.0.0.41", "ipv4_mask": 24 }'
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] config IP:  ifconfig br-lan 10.0.0.41 netmask 255.255.255.0
Mon Aug 14 17:04:26 2023 user.info smartip: [lan] echo 10.0.0.41 > /tmp/runtime_ip_lan
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] route del default dev br-lan
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] route add default gw 10.0.0.1
Mon Aug 14 17:04:26 2023 user.info root: guest-eth reload gw 
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] /etc/init.d/guest_eth reload gw 10.0.0.1
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] restart miniupnpd
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] Send Message -- TYPE:lan, EVENT:UPDATE
Mon Aug 14 17:04:26 2023 daemon.info conn-indicator: Notify inet.down
Mon Aug 14 17:04:26 2023 user.emerg logx: tp217,505[28554]:
Mon Aug 14 17:04:26 2023 user.info smartip: [lan] wait pid
Mon Aug 14 17:04:26 2023 user.notice smartip: [lan] restart domain_login
Mon Aug 14 17:04:26 2023 user.info smartip: [lan] echo 10.0.0.41 > /tmp/runtime_ip_lan
Mon Aug 14 17:04:33 2023 daemon.err bandwidth_contr: wl1 get bwchannel:149 bandwidth: 2000
Mon Aug 14 17:04:33 2023 daemon.err bandwidth_contr: Sending TIPC data. Total 20 bytes.
Mon Aug 14 17:04:36 2023 daemon.info conn-indicator: <32330301> Invoke led: conn[0]
Mon Aug 14 17:04:36 2023 daemon.info leds: Event: conn.online
Mon Aug 14 17:04:36 2023 daemon.notice conn-indicator: Connectivity changed: OFFLINE(0x1) -> ONLINE(0x0)
Mon Aug 14 17:04:36 2023 daemon.info conn-indicator: Notify inet.up
Mon Aug 14 17:04:37 2023 daemon.info conn-indicator: Notify inet.up
Mon Aug 14 17:04:38 2023 daemon.info conn-indicator: Notify inet.up

pfsense DHCP log