Cannot remove static route from NetworkManager

Solution Verified - Updated -

Issue

  • Cannot remove static route from NetworkManager
  • This route will not go away:
$ ip route show table all | grep 192.168.0.0
192.168.0.0/16 via 172.16.0.254 dev myeth0 proto static metric 102 

$ nmcli connection modify myeth0 -ipv4.routes "192.168.0.0/16 172.16.0.254"
$ ip route del 192.168.0.0/16 via 172.16.0.254 dev myeth0 proto static metric 102
$ nmcli connection up myeth0

$ ip route show table all | grep 192.168.0.0
192.168.0.0/16 via 172.16.0.254 dev myeth0 proto static metric 102

Environment

  • Red Hat Enterprise Linux 8.2
  • NetworkManager-1.22.8-4.el8
  • Static route managed by NM as the ipv4.routes connection property

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