Hello!
If you know the file you want to use, or the command you need to run, will be
quicker if you tell Vagrant to create the interface, but not configure.
config.vm.network "private_network", ip: "192.168.50.4",
auto_config: false
Then, you can use a shell provisioner to copy a file from /vagrant/ to the
location you require and start the interface manually.
Or you can use a shell provisioner to run the command you need:
ifconfig …. etc
If you got this way, you can tell Vagrant to always run that script. (By
default a provisioning script will run on first time)
config.vm.provision "shell", inline: "echo hello",
run: "always"
Thanks
Alvaro
> On 21/11/2015, at 4:22 AM, [email protected] wrote:
>
> Hello,
>
> how can I change MTU of a network interface with a Vagrantfile option ?
> What I have is:
>
> [root@dev-local ~]# ip a
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
> 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: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether 08:00:27:a9:2d:51 brd ff:ff:ff:ff:ff:ff
> inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3
> valid_lft 85575sec preferred_lft 85575sec
> inet6 fe80::a00:27ff:fea9:2d51/64 scope link
> valid_lft forever preferred_lft forever
> 3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UP qlen 1000
> link/ether 08:00:27:8b:7e:e7 brd ff:ff:ff:ff:ff:ff
> inet 192.168.1.10/24 brd 192.168.1.255 scope global enp0s8
> valid_lft forever preferred_lft forever
> inet6 fe80::a00:27ff:fe8b:7ee7/64 scope link
> valid_lft forever preferred_lft forever
> [root@dev-local ~]#
>
> I would like to change MTU of enp0s3 to 1300.
> The Vagrantfile is this:
>
> Vagrant.configure(2) do |config|
> config.vm.provider "virtualbox" do |v|
> v.memory = 512
> v.cpus = 1
> v.customize ["modifyvm", :id, "--cpuexecutioncap", "50"]
> end
> config.vm.hostname = "dev-local"
> config.ssh.username = 'root'
> config.ssh.password = 'root'
> config.ssh.insert_key = 'true'
> config.ssh.pty = false
> config.vm.boot_timeout = 600
> config.vm.network "private_network", ip: "192.168.10.10"
> if ENV['ROOT_TFS_MAPPINGS']
> config.vm.synced_folder ENV['ROOT_TFS_MAPPINGS'], "/src"
> end
> if Vagrant.has_plugin?("vagrant-vbguest")
> config.vbguest.auto_update = true
> config.vbguest.no_remote = true
> end
> end
>
> If I change manually /etc/sysconfig/network-scripts/ifcfg-enp0s3, the
> interface has no ip address mounted after a "vagrant reload". It seems that
> vagrant is in some way aware that the file was manually changed and this
> causes a failure...
>
> Thanks
>
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