General Pre-Information about this Answer
I assume my Answers in Generally on my Knowledge based on Debian Systems, however in this part I skip the Network-Manager Part due I am not using it anyway and in my personal mind makes it only complicated.
You Asked, and in the Comments it seems to be nearly clear, that you want to route the 10.0.0.0/16 to another network card.
You Provided "Wired connection 1" +ipv4.routes "10.0.0.0/16"
-- which device name should the right one, can be found out via ip address
or ifconfig
-- Usually you unsure to it, unplug the cards cable and look to dmesg
or /var/log/syslog
So in My Example, assume the Following:
- "Wired connection 1" = eth0
- "10.0.0.0/16" or 10.0.0.0/255.255.0.0 (or 10.0.0.0-10.0.255.255) should be routed to eth0
The Short way for testing or pre-set, not Persistent:
ip route add 10.0.0.0/16 dev eth0
The Tricky Part for now is, getting it Persistent.
On RHEL/CentOS/Fedora/Scientific based Systems,
- edit /etc/sysconfig/network-scripts/route-eth0
Adding here
10.0.0.0/16 via 10.0.0.1
Where the First is the Network you want to match, second the IP of the Router. In My example, 10.0.0.1
Using the Debian Way. (Debian Bases Systems, Like Ubuntu)
on some Systems, /etc/network/interfaces may seem to be empty. In that case, you have to look into vi /etc/network/interfaces.d, but we assume the basic /etc/network/interfaces file to be used.
- edit /etc/network/interfaces
Look for your Interface eth0
iface eth0 inet static
address 10.0.0.2
netmask 255.0.0.0
Modify, that it looks like
iface eth0 inet static
address 10.0.0.2
netmask 255.0.0.0
###EITHER with Gateway
#post-up route add -net 10.0.0.0 netmask 255.255.0.0 gw 10.0.0.1 dev eth0
#post-down route del -net 10.0.0.0 netmask 255.255.0.0 gw 10.0.0.1 dev eth0
###or without Gateway
#post-up route add -net 10.0.0.0 netmask 255.255.0.0 dev eth0
#post-down route del -net 10.0.0.0 netmask 255.255.0.0 dev eth0
The Generic, Static Way (Might be outdated on Systemd enabled systems)
Edit /etc/rc.d/rc.local or /etc/rc.local
add
ip route add 10.0.0.0/16 dev eth0
This answer is meaned to solve it in generally.