"RTNETLINK answers: Invalid argument" when trying to create a static network route to a network on Red Hat Enterprise Linux 5
Issue
- Add route showing errors:
# ip route add 192.168.102.0/22 via 192.168.1.1 dev eth0 RTNETLINK answers: Invalid argument
Environment
- Red Hat Enterprise Linux 5
- Creating a static route to an external network.
- Commonly using a netmask other than 255.255.255.0 (or /24 for short).
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