Updating a fresh Ubuntu 22.04 image - BananaPi R3 router

Banana Pi BPI-R4/BPI-R3 Mini/BPI-R3/BPI-R64/BPI-R2 Linux
1

Hi, I just logged in for the first time on an Ubuntu 22.04 image found here and provided by the user @frank-w.

I want to update the system and install some linux utilities. I would like to plug an ethernet cable into the bpi-r3 and connect the board to my home router and use my internet connection to update the system.

I first tried plugging the ethernet cable into the LAN0 socket and checked the network configuration and the routing table.

root@bpi-r3:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1504
        ether 9a:13:4a:5a:ea:d1  txqueuelen 1000  (Ethernet)
        RX packets 5576  bytes 477486 (477.4 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6109  bytes 668677 (668.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 121  

he-ipv6: flags=209<UP,POINTOPOINT,RUNNING,NOARP>  mtu 1480
        sit  txqueuelen 1000  (IPv6-in-IPv4)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 9a:13:4a:5a:ea:d1  txqueuelen 1000  (Ethernet)
        RX packets 306  bytes 36831 (36.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1171  bytes 51374 (51.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 9a:13:4a:5a:ea:d1  txqueuelen 1000  (Ethernet)
        RX packets 2194  bytes 176917 (176.9 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2163  bytes 143399 (143.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 9a:13:4a:5a:ea:d1  txqueuelen 1000  (Ethernet)
        RX packets 3071  bytes 162556 (162.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2690  bytes 366042 (366.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 9a:13:4a:5a:ea:d1  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lanbr0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.19  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::f437:88ff:fe50:d8bd  prefixlen 64  scopeid 0x20<link>
        ether f6:37:88:50:d8:bd  txqueuelen 1000  (Ethernet)
        RX packets 5471  bytes 356050 (356.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3525  bytes 451121 (451.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 3065  bytes 247267 (247.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3065  bytes 247267 (247.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vlan500: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.50.19  netmask 255.255.255.0  broadcast 192.168.50.255
        inet6 fe80::f437:88ff:fe50:d8bd  prefixlen 64  scopeid 0x20<link>
        ether f6:37:88:50:d8:bd  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 16  bytes 1376 (1.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vlan600: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.60.19  netmask 255.255.255.0  broadcast 192.168.60.255
        inet6 fe80::f437:88ff:fe50:d8bd  prefixlen 64  scopeid 0x20<link>
        ether f6:37:88:50:d8:bd  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 16  bytes 1376 (1.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wan: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.19  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::9813:4aff:fe5a:ead1  prefixlen 64  scopeid 0x20<link>
        ether 9a:13:4a:5a:ea:d1  txqueuelen 1000  (Ethernet)
        RX packets 5  bytes 814 (814.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 53  bytes 3974 (3.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wan.110: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.110.1  netmask 255.255.255.0  broadcast 192.168.110.255
        inet6 fe80::11:2ff:fe03:110  prefixlen 64  scopeid 0x20<link>
        ether 02:11:02:03:01:10  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 11  bytes 1026 (1.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wan.140: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.140.1  netmask 255.255.255.0  broadcast 192.168.140.255
        inet6 fe80::11:2ff:fe03:140  prefixlen 64  scopeid 0x20<link>
        ether 02:11:02:03:01:40  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 11  bytes 1026 (1.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

And the routing table:

root@bpi-r3:~# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.0.10    0.0.0.0         UG    0      0        0 lanbr0
0.0.0.0         192.168.0.10    0.0.0.0         UG    0      0        0 wan
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 lanbr0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 wan
192.168.50.0    0.0.0.0         255.255.255.0   U     0      0        0 vlan500
192.168.60.0    0.0.0.0         255.255.255.0   U     0      0        0 vlan600
192.168.110.0   0.0.0.0         255.255.255.0   U     0      0        0 wan.110
192.168.140.0   0.0.0.0         255.255.255.0   U     0      0        0 wan.140

Do you have any advice on how to configure the network in order to connect to the internet and update the system? Thank you

2

it looks your lan-segment for existing router (wan) is same as lan from r3, it needs to be different…and i see i have not disabled my gateway :stuck_out_tongue:

so basicly:

  • if your existing lan uses 192.168.0.0/24, change lanbr0 config to another subnet (e.g. 192.168.1.0/24). you have config-files in /etc/systemd/network and you need to pick the lanbr network file (e.g. using 192.168.1.1 as static ip for the bridge and use your route ip as gateway+dns)
  • then if your r3 get ip on wan, you should be able to ping your router and the internet from R3 itself
  • to get your client on lan-port (which should get an ip from newly subnet 192.168.1.0/24) an internet connection you can either configure masqerading (NAT so all lan-clients are “hidden” behind r3s wan ip) on wan-port or adding a static route to your main-router (it has to know where to send packets for your r3 lan subnet)
3

Thanks for your reply @frank-w

This is my current lanbr network file

root@bpi-r3:~# cat  /etc/systemd/network/25-lanbr.network 
[Match]
Name=lanbr0

#[Link]
# Override MAC address (spoof MAC address)
#MACAddress=08:22:33:44:55:66

[Network]
BindCarrier=eth0
#ConfigureWithoutCarrier=true

#DHCP=ipv4

#static setup
Address=192.168.0.19/24
Gateway=192.168.0.10
DNS=192.168.0.10

VLAN=vlan500
VLAN=vlan600

IPForward=yes
#needs iptables to be installed
#IPMasquerade=yes

Tunnel=he-ipv6

DHCPServer=yes
#IPv6SendRA=yes
#DHCPv6PrefixDelegation=yes

[DHCPServer]
PoolOffset=100
PoolSize=150

#[IPv6SendRA]
#Managed=true

#[IPv6Prefix]
#Prefix=fd00:A::/64

#[Route]
#Gateway=192.168.0.10
#Destination=10.0.3.0/24
#GatewayOnLink=yes

Just to fully understand what I am doing, I used another laptop, connected it to my home router using an ethernet cable and checked the details of the wired network.

This is the laptop network configuration:

userk@dopamine:~$ ifconfig
enp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.5  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::ef3f:13c8:2912:166a  prefixlen 64  scopeid 0x20<link>
        ether 52:be:f7:61:e7:85  txqueuelen 1000  (Ethernet)
        RX packets 182  bytes 51246 (51.2 KB)
        RX errors 0  dropped 15  overruns 0  frame 0
        TX packets 648  bytes 78633 (78.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 19

and routing table:

userk@dopamine:~$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 enp4s0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 enp4s0
192.168.1.0     0.0.0.0         255.255.255.0   U     100    0        0 enp4s0

So my existing lan uses 192.168.1.0/24, and the IP address of my home router if 192.168.1.1.

if your existing lan uses 192.168.0.0/24, change lanbr0 config to another subnet (e.g. 192.168.1.0/24). you have config-files in /etc/systemd/network and you need to pick the lanbr network file (e.g. using 192.168.1.1 as static ip for the bridge and use your route ip as gateway+dns)

Back the rpi-r3, I changed the following lines in the lanbr network config file and rebooted. Not sure if I got it right…

Address=192.168.0.1/24
Gateway=192.168.1.1
DNS=192.168.1.1

Here is the network configuration after a reboot:

root@bpi-r3:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1504
        ether 66:10:23:c5:d3:6f  txqueuelen 1000  (Ethernet)
        RX packets 1219  bytes 113717 (113.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 809  bytes 83964 (83.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 121  

he-ipv6: flags=209<UP,POINTOPOINT,RUNNING,NOARP>  mtu 1480
        sit  txqueuelen 1000  (IPv6-in-IPv4)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 66:10:23:c5:d3:6f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 66:10:23:c5:d3:6f  txqueuelen 1000  (Ethernet)
        RX packets 197  bytes 30544 (30.5 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 275  bytes 20095 (20.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 66:10:23:c5:d3:6f  txqueuelen 1000  (Ethernet)
        RX packets 1002  bytes 58213 (58.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 381  bytes 43553 (43.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lan3: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 66:10:23:c5:d3:6f  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lanbr0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.1  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::f437:88ff:fe50:d8bd  prefixlen 64  scopeid 0x20<link>
        ether f6:37:88:50:d8:bd  txqueuelen 1000  (Ethernet)
        RX packets 1196  bytes 88601 (88.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 478  bytes 53816 (53.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 368  bytes 29866 (29.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 368  bytes 29866 (29.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vlan500: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.50.19  netmask 255.255.255.0  broadcast 192.168.50.255
        inet6 fe80::f437:88ff:fe50:d8bd  prefixlen 64  scopeid 0x20<link>
        ether f6:37:88:50:d8:bd  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13  bytes 1166 (1.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vlan600: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.60.19  netmask 255.255.255.0  broadcast 192.168.60.255
        inet6 fe80::f437:88ff:fe50:d8bd  prefixlen 64  scopeid 0x20<link>
        ether f6:37:88:50:d8:bd  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13  bytes 1166 (1.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wan: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.19  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::6410:23ff:fec5:d36f  prefixlen 64  scopeid 0x20<link>
        ether 66:10:23:c5:d3:6f  txqueuelen 1000  (Ethernet)
        RX packets 20  bytes 3018 (3.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 151  bytes 8218 (8.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wan.110: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.110.1  netmask 255.255.255.0  broadcast 192.168.110.255
        inet6 fe80::11:2ff:fe03:110  prefixlen 64  scopeid 0x20<link>
        ether 02:11:02:03:01:10  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13  bytes 1166 (1.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wan.140: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.140.1  netmask 255.255.255.0  broadcast 192.168.140.255
        inet6 fe80::11:2ff:fe03:140  prefixlen 64  scopeid 0x20<link>
        ether 02:11:02:03:01:40  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13  bytes 1166 (1.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

And the routing table:

root@bpi-r3:~# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.0.10    0.0.0.0         UG    0      0        0 wan
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 lanbr0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 wan
192.168.50.0    0.0.0.0         255.255.255.0   U     0      0        0 vlan500
192.168.60.0    0.0.0.0         255.255.255.0   U     0      0        0 vlan600
192.168.110.0   0.0.0.0         255.255.255.0   U     0      0        0 wan.110
192.168.140.0   0.0.0.0         255.255.255.0   U     0      0        0 wan.140

Looks like the route is still not correct. Tried adding a static route as you suggested using:

root@bpi-r3:~# route add -net 192.168.0.0/24 gw 192.168.1.1 wan
SIOCADDRT: Network is unreachable
root@bpi-r3:~# ip route add 192.168.0.0/24 via 192.168.1.1 dev wan
Error: Nexthop has invalid gateway.

But I get these errors. Any advice?

4

Your wan has same ip as lanbr…i thought wan has dhcp and should get an ip from your main-router…so please look into the wan.network file to disable static setup and activate dhcp

Edit: Looked into my image description: 192.168.0.19 on wan-port, 192.168.1.1 on lan-ports,so it seems you have changed lanbr to 192.168.0.19/24 and have not changed wan…

When changing wan it is better to have static ip…e.g. 192.168.1.19 because static route needs a fixed ip.

Your laptop should get an 192.168.0.0/24 ip from r3 lan-port

5

Thank you very much for your support.

I set DHCP=yes in the wan network file and it worked.

I appreciate your help in this matter.

6

You ended up in a setup with WAN connected to your router. Is this what you want, or do you want to have a setup where you connect a LAN port to your router? It needs a different network setup, but it is possible also. I use one BPI-router as router and another BPI-router connected LAN-LAN to the real actual router. This setup allows for fast wifi roaming.

7

Hi Eric!

You ended up in a setup with WAN connected to your router. Is this what you want, […] I just wanted to update the system and install some utilities on my brand new bpi r3.

“I use one BPI-router as router and another BPI-router connected LAN-LAN to the real actual router. This setup allows for fast wifi roaming.” Sorry too many routers, so how many normal routers do you have in your network?

8

My setup is like this:


          wan
      ROUTER-R64                            ACCESSPOINT-R64
   lan1 lan2 lan3 lan4                  lan1 lan2 lan3 lan4 lan
                   |                     |
                   -----------------------
                  tagged traffic vid 2 & 3

Or in more detail:

ROUTER

                wan  -------------------------------------
                 |                                       |
              IPforward                               IPforward
                 |                                       |
          192.168.1.1                               192.168.2.1
            BRLAN vid 2                               BRGUEST                                         
lan1 lan2 lan3  lan4  wlan0 veth3a                veth3b  wlan0guest
  2    2    2  vid2&3    2   vid 3                  |
                   |          |                     |
                   |          -----------------------
                   |             untagged traffic
                   |
                 To AP

ACCESSPOINT

          192.168.1.2                               192.168.2.2
            BRLAN vid 2                               BRGUEST                                         
 lan1  lan2 lan3 lan4 wlan0 veth3a                veth3b  wlan0guest
vid2&3   2    2    2    2    vid 3                   |
     |                         |                     |
     |                         -----------------------
     |                                 untagged traffic
     |
   To Router

So my BPI-R64 router is my main router, no other router.