1. Prerequisites[edit | edit source]
This article necessarily needs and assumes that the X-LINUX-TSNSWCH expansion package is installed on top of OpenSTLinux distribution.
2. Purpose[edit | edit source]
This article describes how to create a bridge between ETH1/ETH2/ETH3.
The HW Ethernet switch make a link between ETH1 and ETH3. Their Ethernet network is completely different from the network of ETH2. To link both network to form only one, a software bridge is needed.
Here are the steps to configure this setup.
Configuration of MP25 board: bring up the end1/sw0ep interface/IP Forward enabled:
ifconfig end0 169.254.1.1 up ifconfig sw0p2 192.168.0.20 up echo 1 > /proc/sys/net/ipv4/ip_forward
IP forwarding in Linux refers to setting the Linux system to accept incoming network packets and forwarding them to another network.
Configuration of Device1 (board or PC): bring up the 'end0' ethernet interface:
ifconfig end0 169.254.1.2 up ip route add default via 169.254.1.1
Configuration of Device2 (board or PC): bring up the 'end0' ethernet interface:
ifconfig end0 192.168.0.11 up ip route add default via 192.168.0.10
Device1 and Device2 are now visible to each other:
From Device1:
ping 192.168.0.11 PING 192.168.0.11 (192.168.0.11) 56(84) bytes of data. 64 bytes from 192.168.0.11: icmp_seq=1 ttl=63 time=1.31 ms 64 bytes from 192.168.0.11: icmp_seq=2 ttl=63 time=1.34 ms 64 bytes from 192.168.0.11: icmp_seq=3 ttl=63 time=1.38 ms 64 bytes from 192.168.0.11: icmp_seq=4 ttl=63 time=1.32 ms
From Device2:
ping 169.254.1.2 PING 169.254.1.2 (169.254.1.2) 56(84) bytes of data. 64 bytes from 169.254.1.2: icmp_seq=1 ttl=63 time=1.34 ms 64 bytes from 169.254.1.2: icmp_seq=2 ttl=63 time=1.26 ms 64 bytes from 169.254.1.2: icmp_seq=3 ttl=63 time=1.28 ms 64 bytes from 169.254.1.2: icmp_seq=4 ttl=63 time=1.25 ms
3. References[edit | edit source]