EOS- Artemis RPI4 -why 2 ethernet ports?

jfabernathy · June 27, 2022, 10:26am

I installed the new EOS ARM Artemis using the new ARM install options and build an LXDE system on my RPI4 4GB. While identifying my IP address so I could ssh into the PI, I found I had 2 IP addresses. I can ssh into either one of them. Why is this? ip -c a output below:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    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
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether dc:a6:32:7d:ee:9a brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.133/24 brd 192.168.0.255 scope global dynamic noprefixroute eth0
       valid_lft 5957sec preferred_lft 5957sec
    inet 192.168.0.135/24 metric 1024 brd 192.168.0.255 scope global secondary dynamic eth0
       valid_lft 5776sec preferred_lft 5776sec
    inet6 fe80::8879:d325:d36d:370/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether dc:a6:32:7d:ee:9b brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.131/24 brd 192.168.0.255 scope global noprefixroute wlan0
       valid_lft forever preferred_lft forever
    inet6 fe80::bd9e:551:8fb9:de14/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

sradjoker · June 27, 2022, 10:30am

First is the ip for Ethernet and the second is for wifi. Hence the terms eth0 and wlan0.
We are enabling wifi out of the box. Actually it is enabled out of the box, we just added a network configuration for DHCP.
If you want to disable it go ahead

jfabernathy · June 27, 2022, 10:31am

Check the eth0. there are 2 IP addresses there

sradjoker · June 27, 2022, 10:35am

Oh my bad. I can’t reproduce your issue as I don’t use eth0 and just use wifi.

But we don’t do anything special for the internet side as far as I know.
Do you want to take a look at our scripts to figure out what we’re doing wrong?

Here is the script that creates the image:

github.com

endeavouros-arm/calamares-image/blob/main/switch-kernel.sh

#!/bin/bash

_check_if_root() {
    if [ $(id -u) -ne 0 ]
    then
      printf "\n\n${RED}PLEASE RUN THIS SCRIPT AS ROOT OR WITH SUDO${NC}\n\n"
      exit
    fi
}   # end of function _check_if_root

_check_internet_connection() {
    printf "\n${CYAN}Checking Internet Connection...${NC}\n\n"
    ping -c 3 endeavouros.com -W 5
    if [ "$?" != "0" ]
    then
       printf "\n\n${RED}No Internet Connection was detected\nFix your Internet Connectin and try again${NC}\n\n"
       exit
    fi
}   # end of function _check_internet_connection

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Pudge · June 27, 2022, 3:40pm

I have never seen this before, except when the MoBo physically has two ethernet ports.
Curiosity is kicking in. Now I have to fire up my RPi 4 and check this out.
Thanks for reporting.

Pudge

ricklinux · June 27, 2022, 3:50pm

This is my output on the pi 400

Screenshot_2022-06-27_11-47-05

pycrk · June 27, 2022, 4:04pm

by @jfabernathy the state eth0 and wlan0 are both up, maybe it has to do with that.

ricklinux · June 27, 2022, 4:08pm

I think you are right as i just connected wifi and ethernet and that is what it looks like to me.