Debian Unable to add a static route: SIOADDRT: Network is unreachable

linux-networkingnetworkingroute

I've been trying to solve this out by myself but is nearly impossible…the thing is that I have to PCs on the same network, one is running Windows (192.168.61.100) and the other one is running Debian (192.168.61.200). I added a static route to the one running W (route add -p 192.168.0.0 mask 255.255.255.0 192.168.60.254) and I perfectly can ping a PC with IP address 192.168.0.170 and viceversa from 192.168.61.100. The problem comes when I try to add the same static route to the one running Debian, when I try to do it I get:
root@satv:/home/satv# route add -net 192.168.0.0 netmask 255.255.255.0 gw 192.168.60.254
SIOCADDRT: Network is unreachable Here are some useful things:

ifconfig

eth0      Link encap:Ethernet  HWaddr 1c:1b:0d:c0:a8:89  
          inet addr:192.168.61.200  Bcast:192.168.61.255  Mask:255.255.255.0
          inet6 addr: fe80::1e1b:dff:fec0:a889/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2965 errors:0 dropped:165 overruns:0 frame:0
          TX packets:1389 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:234251 (228.7 KiB)  TX bytes:131929 (128.8 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:172 (172.0 B)  TX bytes:172 (172.0 B)

route -n

Kernel IP routing table Destination     Gateway         Genmask        Flags Metric Ref    Use Iface
0.0.0.0         192.168.61.254  0.0.0.0         UG    0      0        0 eth0
192.168.61.0    0.0.0.0         255.255.255.0   U     0      0        0 eth0

ip route list

default via 192.168.61.254 dev eth0 
192.168.61.0/24 dev eth0  proto kernel  scope link  src 192.168.61.200

netstat -anr

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.61.254  0.0.0.0         UG        0 0          0 eth0
192.168.61.0    0.0.0.0         255.255.255.0   U         0 0          0 eth0

Obviously I need to ping 192.168.0.170 from 192.168.61.200 and viceversa. Can anybody please helpme??? I've been working on this for days and I'm very desperate…Thanks a lot in advance.

Best Answer

The next hop you are trying to add in the route is not in the same subnet as the computer you are trying to configure the route in.

That is, 192.168.61.200 netmask 255.255.255.0 covers only addresses from 192.168.61.1 to 192.168.61.254, and you have to use an address in that network for your next hop.

Maybe your Windows computer has a different netmask which also covers the 192.168.16.0/24 network.

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