Arch Linux

SmallAndSimple

Member

Registered: 2015-11-25

Posts: 50

Connecting Beagle Board trough USB

I have a Beagle Board and I want to SSH to it. So I connect it via USB, and it shows up in ip addr show:

Arch :: ~ » ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: enp0s25: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 14:58:d0:c6:3c:27 brd ff:ff:ff:ff:ff:ff
4: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether f8:16:54:68:4b:0b brd ff:ff:ff:ff:ff:ff
    inet 145.94.158.208/22 brd 145.94.159.255 scope global dynamic wlo1
       valid_lft 630sec preferred_lft 630sec
    inet6 fe80::fa16:54ff:fe68:4b0b/64 scope link 
       valid_lft forever preferred_lft forever
6: enp0s20u10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/ether 16:0f:15:5a:e1:21 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::140f:15ff:fe5a:e121/64 scope link tentative 
       valid_lft forever preferred_lft forever

So I want to assign an IP address to it:

Arch :: ~ » sudo ip addr add 192.168.0.201 dev enp0s20u10
Arch :: ~ » sudo ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: enp0s25: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether 14:58:d0:c6:3c:27 brd ff:ff:ff:ff:ff:ff
4: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether f8:16:54:68:4b:0b brd ff:ff:ff:ff:ff:ff
    inet 145.94.158.208/22 brd 145.94.159.255 scope global dynamic wlo1
       valid_lft 751sec preferred_lft 751sec
    inet6 fe80::fa16:54ff:fe68:4b0b/64 scope link 
       valid_lft forever preferred_lft forever
6: enp0s20u10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/ether 16:0f:15:5a:e1:21 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.201/32 scope global enp0s20u10
       valid_lft forever preferred_lft forever
    inet6 fe80::140f:15ff:fe5a:e121/64 scope link 
       valid_lft forever preferred_lft forever

Yay, I thought. Here is the weird part: my Arch computer behaves now like the address 192.168.0.201 is his own address: when I ssh, I ssh to my own laptop.

Where did I go wrong?

SmallAndSimple

Member

Registered: 2015-11-25

Posts: 50

Re: Connecting Beagle Board trough USB

Welp, I Fixed it with a different set of commands:

sudo ip link set up dev wlo1
sudo ip link set up dev enp0s20u10
sudo ip addr add 192.168.0.201/24 dev enp0s20u10
sudo sysctl net/ipv4/ip_forward=1
sudo ip addr add 192.168.0.200/24 dev wlo1
sudo ip route add default via 192.168.0.201 dev wlo1
ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 root@192.168.0.202

Now there is a new, more subtle issue: I cannot be connected to the internet and the board at the same time. Does anyone have some toughts on this?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,774

Re: Connecting Beagle Board trough USB

What is the output of ip route   ?
I bet you are using the Beagleboard as your default gateway.

You may need a routers clause in your dhcpcd.conf file to tell it to not update the default gateway for the 192.x.x.x network

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