Linux Routing configuration file

Divided into system routing, network card routing (redhat8 above), static routing
System routing can be set in/etc/sysconfig/network
Network card routing can be set in/ETC/SYSCONFIG/NEWORK-SCRIPT/IFCFG-ETHX
Static routing in/etc/sysconfig/networking/device/can be set in Ethx.route, static route as the name implies, is fixed, set up the general will not easily change the route


Reproduced:
http://tieba.baidu.com/f?kz=636594999


Static routing configuration files in Linux


Static routing: Many people like to add a/etc/rc.d/rc.local to a large number of routes that are not part of this segment.


Route add-net 192.168.1.0 netmask 255.255.255.0 GW 10.224.0.251


Route add-host 192.168.100.1 GW 10.224.0.251


Such a statement, in fact, the system also provides the location where it is correctly placed, but this file does not exist by default, you need to see/etc/init.d/network this script to know, it will not only bring the network card, but also to check whether there are/etc/sysconfig/ static-routes files, if any, add the static routes recorded in these files, the format is simple, such as the above two statements replaced by the static-routes requirements of the format is:


Any-net 192.168.1.0 netmask 255.255.255.0 GW 10.224.0.254


Any-host 192.168.100.1 GW 10.244.0.254




I use the Redhat 8.0, single card.
My/etc/sysconfig/network is:
Networking=yes
Hostname=qflinux
gateway=192.168.0.1


My/etc/sysconfig/static-routes is:
eth0 net 192.168.1.0 netmask 255.255.255.0 GW 192.168.0.254
eth0 net 192.168.2.0 netmask 255.255.255.0 GW 192.168.0.254
eth0 net 192.168.3.0 netmask 255.255.255.0 GW 192.168.0.254


And also


Code:
[Root@qflinux sysconfig]# Ifconfig
Eth0 Link encap:ethernet hwaddr 00:05:5d:26:ae:69
inet addr:192.168.0.254 bcast:192.168.0.255 mask:255.255.255.0
Up broadcast RUNNING multicast mtu:1500 metric:1
RX packets:8084 errors:0 dropped:0 overruns:0 frame:0
TX packets:269 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:653535 (638.2 KB) TX bytes:31880 (31.1 KB)
Interrupt:5 Base address:0x9000


Lo Link encap:local Loopback
inet addr:127.0.0.1 mask:255.0.0.0
Up loopback RUNNING mtu:16436 metric:1
RX packets:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:700 (700.0 b) TX bytes:700 (700.0 b)
But:


Code:
[Root@qflinux root]# Route
Kernel IP Routing Table
Destination Gateway genmask Flags Metric Ref use Iface
192.168.0.0 192.168.0.254 255.255.255.0 UG 0 0 0 eth0
192.168.0.0 * 255.255.255.0 U 0 0 0 eth0
127.0.0.0 * 255.0.0.0 U 0 0 0 Lo
Default 192.168.0.1 0.0.0.0 UG 0 0 0 eth0