[Expired for cloud-init because there has been no activity for 60 days.] ** Changed in: cloud-init Status: Incomplete => Expired
-- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/1663049 Title: Local routes are not configured correctly in /etc/network/interfaces Status in cloud-init: Expired Bug description: For Debian-based platforms, additional, local routes are not added correctly in /etc/network/interfaces. For example, I may have interface `eth0` with address 192.168.0.10/24 but I need to add a *local* route to 192.168.1.0/24 where this subnet is available on the same physical network - NOT via a gateway. In this case, my route would look like: { "network": "192.168.1.0", "netmask": "255.255.255.0", "gateway": "0.0.0.0" } The gateway of "0.0.0.0" signifies that this is a local route and a gateway is not required. I would expect that /etc/network/interfaces configuration for this route looks like one of the below: --- post-up route add -net 192.168.1.0 netmask 255.255.255.0 dev eth0 post-up ip route add 192.168.1.0/24 dev eth0 --- However, the configuration looks like: --- post-up route add -net 192.168.1.0 netmask 255.255.255.0 gw 0.0.0.0 --- The `dev eth0` is especially important here as the route table needs to know which physical interface the subnet is available on. Whilst this may seem like a very unlikely scenario, this sort of routing is much more common when the IP addresses are on public subnets and it's preferable to have them communicate locally rather than via the gateway. Additionally, it seems that using OpenStack's DHCP to configure the networking instead does achieve the desired behaviour. This is working correctly on RHEL-based platforms but I've not tested any other distros. For reference, the relevant code is in `cloudinit.net.eni.Renderer._render_route` To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1663049/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp