Linksys E8450 - odd networking

[Rafał Miłecki]

On 01.06.2021 09:21, Embedded Devel wrote:
> something is odd with Linksys E8450 on master as of last night....
> 
> eth0 has no ip address, wan has a dhcp address as the gateway, no client behind it connected to the lan can ping 8.8.8.8, the router itself can ping 8.8.8.8 , it worked fine before the "double" luci update the configs prompts..... i need ideas. could it be just a firewall forwarding rule ?

eth0 should NOT have IP address, it's Ethernet interface connected to the swtich (and so - indirectly - all its ports).

wan has 192.168.10.123 assigned (using DCHP I believe) - is that really your gateway IP? Isn't your gateway 192.168.10.1 by any chance? What's your "ip route" output?

Is your "br-lan" assigned to the firewall zone?


> root at E8-9F-80-62-6F-F0:~# ifconfig
> br-lan    Link encap:Ethernet  HWaddr E8:9F:80:62:6F:F0
>            inet addr:192.168.1.1  Bcast:192.168.1.255 Mask:255.255.255.0
>            inet6 addr: fe80::ea9f:80ff:fe62:6ff0/64 Scope:Link
>            inet6 addr: fda6:309:a895::1/60 Scope:Global
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:13267 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:88876 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:1294113 (1.2 MiB)  TX bytes:4856343 (4.6 MiB)
> 
> eth0      Link encap:Ethernet  HWaddr E8:9F:80:62:6F:F0
>            inet6 addr: fe80::ea9f:80ff:fe62:6ff0/64 Scope:Link
>            UP BROADCAST RUNNING MULTICAST  MTU:1504  Metric:1
>            RX packets:91700 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:236577 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:26829752 (25.5 MiB)  TX bytes:31170503 (29.7 MiB)
>            Interrupt:36
> 
> lan1      Link encap:Ethernet  HWaddr E8:9F:80:62:6F:F0
>            UP BROADCAST MULTICAST  MTU:1500  Metric:1
>            RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> 
> lan2      Link encap:Ethernet  HWaddr E8:9F:80:62:6F:F0
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:13274 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:88872 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:1294477 (1.2 MiB)  TX bytes:4856151 (4.6 MiB)
> 
> lan3      Link encap:Ethernet  HWaddr E8:9F:80:62:6F:F0
>            UP BROADCAST MULTICAST  MTU:1500  Metric:1
>            RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> 
> lan4      Link encap:Ethernet  HWaddr E8:9F:80:62:6F:F0
>            UP BROADCAST MULTICAST  MTU:1500  Metric:1
>            RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
> 
> lo        Link encap:Local Loopback
>            inet addr:127.0.0.1  Mask:255.0.0.0
>            inet6 addr: ::1/128 Scope:Host
>            UP LOOPBACK RUNNING  MTU:65536  Metric:1
>            RX packets:93856 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:93856 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:16987663 (16.2 MiB)  TX bytes:16987663 (16.2 MiB)
> 
> wan       Link encap:Ethernet  HWaddr E8:9F:80:62:6F:EF
>            inet addr:192.168.10.123  Bcast:192.168.10.255 Mask:255.255.255.0
>            inet6 addr: fe80::ea9f:80ff:fe62:6fef/64 Scope:Link
>            UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>            RX packets:78426 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:147404 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:23884675 (22.7 MiB)  TX bytes:23116828 (22.0 MiB)
> 
> ztppix7qfq Link encap:Ethernet  HWaddr AE:69:2B:78:B5:F6
>            inet addr:172.25.182.185  Bcast:172.25.255.255 Mask:255.255.0.0
>            inet6 addr: fcf9:c824:3237:2e64:2b8c::1/40 Scope:Global
>            inet6 addr: fde5:cd7a:9e1c:55e:ac99:9337:2e64:2b8c/88 Scope:Global
>            inet6 addr: fe80::4403:5dff:fe1b:c35e/64 Scope:Link
>            UP BROADCAST RUNNING MULTICAST  MTU:2800  Metric:1
>            RX packets:5994 errors:0 dropped:0 overruns:0 frame:0
>            TX packets:6350 errors:0 dropped:0 overruns:0 carrier:0
>            collisions:0 txqueuelen:1000
>            RX bytes:545025 (532.2 KiB)  TX bytes:2516950 (2.3 MiB)
> 
> config interface 'loopback'
>      option proto 'static'
>      option ipaddr '127.0.0.1'
>      option netmask '255.0.0.0'
>      option device 'lo'
> 
> config globals 'globals'
>      option ula_prefix 'fda6:0309:a895::/48'
> 
> config interface 'lan'
>      option proto 'static'
>      option ipaddr '192.168.1.1'
>      option netmask '255.255.255.0'
>      option ip6assign '60'
>      option device 'br-lan'
> 
> config interface 'wan'
>      option proto 'dhcp'
>      option device 'wan'
> 
> config interface 'wan6'
>      option proto 'dhcpv6'
>      option device 'wan'
> 
> config device 'device1'
>      option name 'br-lan'
>      list ports 'lan1'
>      list ports 'lan2'
>      list ports 'lan3'
>      list ports 'lan4'
>      option type 'bridge'