Re: iproute2 query

On 22 February 2016 at 07:05, Stephen Hemminger
[off-list ref] wrote:

On Fri, 19 Feb 2016 20:12:04 +1100
Marcus Furlong [off-list ref] wrote:

quoted

Hi,

Just wondering if the following command should work:

# ip route add 192.168.27.27/24 dev eth0 scope link src 192.168.27.27
RTNETLINK answers: Invalid argument

However, this command works:

# ip route add 192.168.27.0/24 dev eth0 scope link src 192.168.27.27

192.168.27.0/24 and 192.168.27.27/24 describe the same subnet?

It is the kernel complaining, not ip command.
The kernel will not accept 192.168.27.27/24 as route since it is a full
network address, not an network prefix.

Would it be a bad idea for the ip command to validate the data, and
only submit the network bits to the kernel?

Regards,
Marcus.

-- 
Marcus Furlong