Fail to define a default route via NetworkManager

Solution Verified - Updated -

Issue

  • Adding default route as a static route via NetworkManager fails.
  • The Error message shows like below, which means prefix 0 is invalid.
# nmcli con m eth0 +ipv4.routes "0.0.0.0/0 10.0.0.1"
Error: failed to modify ipv4.routes: invalid prefix '0'; <1-32> allowed.

# nmcli con m eth0 +ipv6.routes "::0/0 XXXX:XXXX:XXXX:XXXX::1"
Error: failed to remove a value from ipv6.routes: invalid prefix '0'; <1-128> allowed.

Environment

  • Red Hat Enterprise Linux 8
  • NetworkManager-1.20.0-5.el8_1 or earlier

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content