GT-AC5300组AiMesh，开启UPnP后WAN口偶尔断网，有日志信息
前段时间用3个GT-AC5300组AiMesh，SSID是分开设置的，关闭了漫游助手。偶尔发现有断网现象，经过多次排查，最终确定开启外网设置（WAN）中的UPnP后（路由器默认UPnP是开启的），WAN偶尔会断网。当关闭UPnP后，WAN口就再也没出现过断网。曾经怀疑是硬件问题，换过一次货，但换回来的新路由器也出现同样的情况。虽说关闭UPnP没有太大影响，但毕竟有些少数P2P的程序还是会用到，而且换其他品牌路由器测试的时候，同样是开启UPnP则不会出现断网情况，还是请教一下专业人士问题出在哪，应该如何解决，下面是两次断网日志：192.168.50.11是我的台式机电脑，第一次断网台式机为开启状态，另外一次断网台式机为关机状态
第一次断网：
Nov 16 23:43:35 rc_service: ip-up 23262:notify_rc start_firewall
Nov 16 23:43:35 miniupnpd: add_filter_rule() : chain FUPNP not found
Nov 16 23:43:35 miniupnpd: Failed to redirect 4466 -> 192.168.50.11:4466 protocol TCP
Nov 16 23:43:35 miniupnpd: add_filter_rule() : chain FUPNP not found
Nov 16 23:43:35 miniupnpd: Failed to redirect 4466 -> 192.168.50.11:4466 protocol UDP
Nov 16 23:43:35 miniupnpd: add_filter_rule() : chain FUPNP not found
Nov 16 23:43:35 miniupnpd: Failed to redirect 4466 -> 192.168.50.11:4466 protocol TCP
Nov 16 23:43:35 miniupnpd: add_filter_rule() : chain FUPNP not found
Nov 16 23:43:35 miniupnpd: Failed to redirect 4466 -> 192.168.50.11:4466 protocol UDP
Nov 16 23:43:35 miniupnpd: add_filter_rule() : chain FUPNP not found
Nov 16 23:43:35 miniupnpd: Failed to redirect 4466 -> 192.168.50.11:4466 protocol TCP
Nov 16 23:43:35 miniupnpd: add_filter_rule() : chain FUPNP not found
Nov 16 23:43:35 miniupnpd: Failed to redirect 4466 -> 192.168.50.11:4466 protocol UDP
Nov 16 23:43:35 miniupnpd: shutting down MiniUPnPd
Nov 16 23:43:35 wan: finish adding multi routes
Nov 16 23:43:35 nat: apply nat rules (/tmp/nat_rules_ppp0_eth0)
Nov 16 23:43:35 rc_service: ip-up 23262:notify_rc stop_upnp
Nov 16 23:43:35 rc_service: waitting "start_firewall" via ip-up ...
Nov 16 15:43:36 ntp: start NTP update
Nov 16 23:43:36 miniupnpd: version 1.9 started
Nov 16 23:43:36 miniupnpd: HTTP listening on port 35724
Nov 16 23:43:36 miniupnpd: Listening for NAT-PMP/PCP traffic on port 5351
Nov 16 23:43:37 rc_service: ip-up 23262:notify_rc start_upnp
Nov 16 23:43:37 rc_service: waitting "stop_upnp" via ip-up ...
Nov 16 23:43:37 miniupnpd: shutting down MiniUPnPd
Nov 16 23:43:38 miniupnpd: version 1.9 started
Nov 16 23:43:38 start_ddns: update WWW.ASUS.COM dyndns, wan_unit 0
Nov 16 23:43:38 miniupnpd: HTTP listening on port 50816
Nov 16 23:43:38 miniupnpd: Listening for NAT-PMP/PCP traffic on port 5351
Nov 16 23:43:38 ddns update: ez-ipupdate: starting...
Nov 16 23:43:38 ddns update: asus_private() interface =ppp0
Nov 16 23:43:38 ddns update: g_asus_ddns_mode == 2
Nov 16 23:43:38 ddns update: connected to nwsrv-ns1.asus.com (103.10.4.108) on port 80.
Nov 16 23:43:38 ddns update: Asus update entry:: return: HTTP/1.1 200 OK^M Date: Fri, 16 Nov 2018 15:43:37 GMT^M Server: Apache^M X-Powered-By: PHP/5.6.30^M Content-Length: 0^M Connection: close^M Content-Type: text/html; charset=UTF-8^M ^M
Nov 16 23:43:38 ddns update: retval= 0, ddns_return_code (,200)
Nov 16 23:43:38 ddns update: asusddns_update: 0
Nov 16 23:43:38 ddns: ddns update ok
Nov 16 23:43:38 ddns update: exit_main
Nov 16 15:43:38 WAN Connection: WAN was restored.
另外一次断网：
Dec 18 00:00:42 disk_monitor: Got SIGALRM...
Dec 18 00:25:43 WLCEVENTD: eth8: Disassoc B4:9C:DF:E6:5A:D3
Dec 18 00:25:43 WLCEVENTD: eth8: Disassoc B4:9C:DF:E6:5A:D3
Dec 18 06:31:32 WLCEVENTD: eth7: ReAssoc 20:A2:E4:44:42:1B
Dec 18 06:34:47 WLCEVENTD: eth8: ReAssoc B4:9C:DF:E6:5A:D3
Dec 18 06:34:47 WLCEVENTD: eth8: ReAssoc E4:9A:DC:82:7C:D5
Dec 18 06:36:25 WLCEVENTD: eth8: Disassoc B4:9C:DF:E6:5A:D3
Dec 18 06:36:32 WLCEVENTD: eth8: Disassoc E4:9A:DC:82:7C:D5
Dec 18 06:37:29 WLCEVENTD: eth7: Disassoc 20:A2:E4:44:42:1B
Dec 18 06:46:05 ntp: start NTP update
Dec 18 18:46:06 ntp: start NTP update
Dec 18 18:46:57 WAN Connection: Fail to connect with some issues.
Dec 18 18:46:57 DualWAN: skip single wan wan_led_control - WANRED off
Dec 18 18:46:57 nat: apply redirect rules
Dec 18 18:46:59 pppd: Connection terminated.
Dec 18 18:46:59 pppd: Modem hangup
Dec 18 18:47:09 pppd: Connected to 48:46:fb:f5:9e:57 via interface eth0
Dec 18 18:47:09 pppd: Connect: ppp0 <--> eth0
Dec 18 18:47:09 pppd: PAP authentication succeeded
Dec 18 18:47:09 pppd: peer from calling number 48:46:FB:F5:9E:57 authorized
Dec 18 18:47:09 pppd: localIP address 175.161.62.13
Dec 18 18:47:09 pppd: remote IP address 175.161.32.1
Dec 18 18:47:09 pppd: primary DNS address 202.96.64.68
Dec 18 18:47:09 pppd: secondary DNS address 202.96.69.38
Dec 18 18:47:09 rc_service: ip-up 31741:notify_rc start_firewall
Dec 18 18:47:09 miniupnpd: delete_filter_rule() : iptc_commit(): Resource temporarily unavailable
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 21878 -> 192.168.50.11:54322 protocol TCP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 21878 -> 192.168.50.11:12346 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 20020 -> 192.168.50.20:20020 protocol TCP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 20020 -> 192.168.50.20:20020 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 23524 -> 192.168.50.166:23524 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 14444 -> 192.168.50.166:23524 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 12563 -> 192.168.50.166:12563 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 21878 -> 192.168.50.11:54322 protocol TCP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 21878 -> 192.168.50.11:12346 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 20020 -> 192.168.50.20:20020 protocol TCP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 20020 -> 192.168.50.20:20020 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 23524 -> 192.168.50.166:23524 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 14444 -> 192.168.50.166:23524 protocol UDP
Dec 18 18:47:09 miniupnpd: add_filter_rule() : chain FUPNP not found
Dec 18 18:47:09 miniupnpd: Failed to redirect 12563 -> 192.168.50.166:12563 protocol UDP
Dec 18 18:47:09 miniupnpd: shutting down MiniUPnPd
Dec 18 18:47:09 wan: finish adding multi routes
Dec 18 18:47:09 nat: apply nat rules (/tmp/nat_rules_ppp0_eth0)
Dec 18 18:47:09 rc_service: ip-up 31741:notify_rc stop_upnp
Dec 18 18:47:09 rc_service: waitting "start_firewall" via ip-up ...
Dec 18 18:47:09 ntp: start NTP update
Dec 18 18:47:09 miniupnpd: version 1.9 started
Dec 18 18:47:09 miniupnpd: HTTP listening on port 39437
Dec 18 18:47:09 miniupnpd: Listening for NAT-PMP/PCP traffic on port 5351
Dec 18 18:47:10 rc_service: ip-up 31741:notify_rc start_upnp
Dec 18 18:47:10 rc_service: waitting "stop_upnp" via ip-up ...
Dec 18 18:47:10 miniupnpd: shutting down MiniUPnPd
Dec 18 18:47:11 miniupnpd: version 1.9 started
Dec 18 18:47:11 miniupnpd: HTTP listening on port 53780
Dec 18 18:47:11 miniupnpd: Listening for NAT-PMP/PCP traffic on port 5351
Dec 18 18:47:12 WAN Connection: WAN was restored.
Dec 18 18:48:11 WLCEVENTD: eth8: Assoc E4:9A:DC:82:7C:D5
Dec 18 18:48:17 WLCEVENTD: eth8: Assoc B4:9C:DF:E6:5A:D3
Dec 18 18:51:51 WLCEVENTD: eth7: Assoc 20:A2:E4:44:42:1B
RT-AC86U也是如此，已关闭 有没有完整的系统日志，打包传上来 iptables -t nat -nL
iptables -t filter -n
另外开启UPnP出现断网可以在telnet里面输入上面两个命令分别贴出结果吗 UPnP 可能是内部服务非法请求过多，导致防火墙中断连接。建议关闭，这个功能并不安全。
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