How to set gateway for eth0?
by Creatorczyk from LinuxQuestions.org on (#5GFKQ)
Hi,
In my file /etc/network/interfaces I declared "eth0" interface like below:
Code:auto eth0
iface eth0 inet static
address 172.16.25.126
netmask 255.255.255.224
gateway 172.16.25.63and later i added line "eth0=eth0" to file "/run/ifstate" and I make execute commands
Code:/sbin/ifdown eth0
/sbin/ifup eth0unfortunately after run "/sbin/ifup eth0" I received error in terminal:
Code:RTNETLINK answers: Network is unreachableError occurs when I have a gateway added to the "/etc/network/interfaces" file (after it has been closed, it disappears)
Code:# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 38:D2:69:7F:87:8C
inet addr:172.16.25.126 Bcast:0.0.0.0 Mask:255.255.255.224
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:175Code:# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
172.16.25.96 0.0.0.0 255.255.255.224 U 0 0 0 eth0
192.168.100.0 0.0.0.0 255.255.255.252 U 0 0 0 usb0I noticed that the IP for eth0 is wrong
I also tried to set the gateway with a commands:
Code:ip route add default via 172.16.25.63But I again get error:
Code:RTNETLINK answers: Network is unreachableI also try:
Code:route add -net 172.16.25.126 netmask 255.255.255.224 gw 172.16.25.63 eth0but I get:
Code:route: netmask and route address conflictWhat could I do to set gateway for my IP adress.
In my file /etc/network/interfaces I declared "eth0" interface like below:
Code:auto eth0
iface eth0 inet static
address 172.16.25.126
netmask 255.255.255.224
gateway 172.16.25.63and later i added line "eth0=eth0" to file "/run/ifstate" and I make execute commands
Code:/sbin/ifdown eth0
/sbin/ifup eth0unfortunately after run "/sbin/ifup eth0" I received error in terminal:
Code:RTNETLINK answers: Network is unreachableError occurs when I have a gateway added to the "/etc/network/interfaces" file (after it has been closed, it disappears)
Code:# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 38:D2:69:7F:87:8C
inet addr:172.16.25.126 Bcast:0.0.0.0 Mask:255.255.255.224
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:175Code:# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
172.16.25.96 0.0.0.0 255.255.255.224 U 0 0 0 eth0
192.168.100.0 0.0.0.0 255.255.255.252 U 0 0 0 usb0I noticed that the IP for eth0 is wrong
I also tried to set the gateway with a commands:
Code:ip route add default via 172.16.25.63But I again get error:
Code:RTNETLINK answers: Network is unreachableI also try:
Code:route add -net 172.16.25.126 netmask 255.255.255.224 gw 172.16.25.63 eth0but I get:
Code:route: netmask and route address conflictWhat could I do to set gateway for my IP adress.