I discovered that when putting 8 to prefix, the route is saved. Previosly I used 0 as prefix.
Consider this to be my stupidity, somehow did not get the idea that prefix means 149/8 notion. But there still should be some kind of example on that specific screen or warning that you have something wrong with your route. ** Changed in: network-manager (Ubuntu) Status: Incomplete => Invalid -- Network Manager, Add IPv4 routes fails https://bugs.launchpad.net/bugs/268534 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs