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| -rw-r--r-- | docs/appendix/troubleshooting.rst | 42 |
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diff --git a/docs/appendix/troubleshooting.rst b/docs/appendix/troubleshooting.rst index 1da5c30e..b1ae27ae 100644 --- a/docs/appendix/troubleshooting.rst +++ b/docs/appendix/troubleshooting.rst @@ -85,6 +85,48 @@ Several options are available for changing the display output. Press `h` to invoke the built in help system. To quit, just press `q` and you'll be returned to the VyOS command prompt. + + +Interface names +--------------- + +If you find the names of your interfaces have changed, this could be +because your MAC addresses have changed. + +* For example, you have a VyOS VM with 4 Ethernet interfaces named + eth0, eth1, eth2 and eth3. Then, you migrate your VyOS VM to a different host and find your interfaces now are eth4, eth5, eth6 and eth7. + + One way to fix this issue **taking control of the MAC addresses** is: + + Log into VyOS and run this command to display your interface settings. + + .. code-block:: none + + show interfaces detail + + Take note of MAC addresses. + + Now, in order to update a MAC address in the configuration, run this + command specifying the interface name and MAC address you want. + + .. code-block:: none + + set interfaces eth0 hw-id 00:0c:29:da:a4:fe + + If it is a VM, go into the settings of the host and set the MAC + address to the settings found in the config.boot file. You can also + set the MAC to static if the host allows so. + + +* Another example could be when cloning VyOS VMs in GNS3 and you get + into the same issue: interface names have changed. + + And **a more generic way to fix it** is just deleting every MAC + address at the configuration file of the cloned machine. They will be + correctly regenerated automatically. + + + Monitoring ---------- |