After booting with systemd networks with static ip does not work immediately. I found a template for a /etc/systemd/system/network.service with a simple eth0 interface in the web, which I could modify for my needs. I also found an example for a bridged interface at http://www.oops.co.at/en/publications/kvm-setting-up-network-bridging-with-systemd-on-gentoo or https://groups.google.com/forum/#!topic/linux.gentoo.user/FBTk08Qe4pk. But both examples are using /usr/bin/tunctl which is not available on my system. Searching in the web for "gentoo tunctl" points to http://gpo.zugaina.org/net-misc/tunctl/Bugs. But even adding the zugaina overlay does not help to install tunctl. Before installing systemd I could configure bridged network interface without additional packages. Do I really need with systemd the tunctl package? And if yes, where can I find it? It would be really nice, if there would be some example network.service scripts contained in the gentoo systemd package.
OK, I found that a tunctl is contained in usermode-utilities-20070815-r3. Is this the right tunctl, I should use?
systemd does not provide any built-in method for configuring networking. The idea is that a separate package should provide network setup. Personally I use net-misc/netctl. Once installed, there is a simple example for bridging in /etc/netctl/examples/bridge.
You have some alternatives listed in: http://wiki.gentoo.org/wiki/Systemd#Native_services
(In reply to Mike Gilbert from comment #2) > systemd does not provide any built-in method for configuring networking. The > idea is that a separate package should provide network setup. > > Personally I use net-misc/netctl. Once installed, there is a simple example > for bridging in /etc/netctl/examples/bridge. I will give netctl a chance. But maybe there is also a solution for my current way. I use the following /etc/systemd/system/network.service: root@lynx:/root(3)# cat /etc/systemd/system/network.service [Unit] Description=network bridge for virtualbox After=network.target [Service] Type=oneshot RemainAfterExit=yes EnvironmentFile=/etc/conf.d/network_systemd ExecStart=/sbin/brctl addbr ${bridge_name} ExecStart=/bin/echo "user=$user tap_name=$tap_name" ExecStart=/usr/bin/tunctl -b -u ${user} -t ${tap_name} ExecStart=/bin/ifconfig ${bridge_name} ${address} netmask ${netmask} up ExecStart=/bin/ifconfig ${interface} up ExecStart=/bin/ifconfig ${tap_name} up 0.0.0.0 promisc ExecStart=/sbin/brctl addif ${bridge_name} ${tap_name} ${interface} ExecStart=/sbin/sysctl net.ipv4.conf.${bridge_name}.forwarding=1 ExecStart=/sbin/iptables -t nat -A POSTROUTING -o ${interface} -j MASQUERADE ExecStart=/bin/ip route add default via ${gateway} ExecStop=/bin/ip route del default via ${gateway} ExecStop=/sbin/sysctl net.ipv4.conf.${bridge_name}.forwarding=0 ExecStop=/bin/ifconfig ${tap_name} down ExecStop=/sbin/brctl delif ${bridge_name} ${tap_name} ExecStop=/usr/bin/tunctl -d ${tap_name} ExecStop=/bin/ifconfig ${bridge_name} down ExecStop=/bin/ifconfig ${interface} down ExecStop=/sbin/brctl delbr ${bridge_name} ExecStop=/sbin/iptables -t nat -D POSTROUTING -o ${interface} -j MASQUERADE [Install] WantedBy=multi-user.target "systemctl restart network" fails with: root@lynx:/root(4)# systemctl restart network Job for network.service failed. See 'systemctl status network.service' and 'journalctl -xn' for details. root@lynx:/root(5)# systemctl status network network.service - network bridge for virtualbox Loaded: loaded (/etc/systemd/system/network.service; enabled) Active: failed (Result: exit-code) since Thu 2013-09-12 15:49:12 CEST; 48s ago Process: 2174 ExecStart=/sbin/iptables -t nat -A POSTROUTING -o ${interface} -j MASQUERADE (code=exited, status=3) Process: 2172 ExecStart=/sbin/sysctl net.ipv4.conf.${bridge_name}.forwarding=1 (code=exited, status=0/SUCCESS) Process: 2170 ExecStart=/sbin/brctl addif ${bridge_name} ${tap_name} ${interface} (code=exited, status=0/SUCCESS) Process: 2168 ExecStart=/bin/ifconfig ${tap_name} up 0.0.0.0 promisc (code=exited, status=0/SUCCESS) Process: 2150 ExecStart=/bin/ifconfig ${interface} up (code=exited, status=0/SUCCESS) Process: 2140 ExecStart=/bin/ifconfig ${bridge_name} ${address} netmask ${netmask} up (code=exited, status=0/SUCCESS) Process: 2133 ExecStart=/usr/bin/tunctl -b -u ${user} -t ${tap_name} (code=exited, status=0/SUCCESS) Process: 2123 ExecStart=/bin/echo user=$user tap_name=$tap_name (code=exited, status=0/SUCCESS) Process: 3799 ExecStart=/sbin/brctl addbr ${bridge_name} (code=exited, status=1/FAILURE) Main PID: 3799 (code=exited, status=1/FAILURE) Sep 12 15:49:12 lynx systemd[1]: network.service: main process exited, code=exited, status=1/FAILURE Sep 12 15:49:12 lynx systemd[1]: Failed to start network bridge for virtualbox. Sep 12 15:49:12 lynx systemd[1]: Unit network.service entered failed state.
Sorry, we're not going to use bugzilla as a support forum. If you read the output, it looks like the iptables command is failing. I would start there.
(In reply to Mike Gilbert from comment #5) > Sorry, we're not going to use bugzilla as a support forum. > > If you read the output, it looks like the iptables command is failing. I > would start there. Sorry for asking to much here. I want still only post the solution. After activating CONFIG_NF_NAT_IPV4=m and CONFIG_NF_NAT_IPV6=m bridged networking seems to work.
