Hi,
I use linux.
I have below error , no route to host
[root@TSTgcota sbin]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.75.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.155.24.0 0.0.0.0 255.255.252.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 10.155.24.1 0.0.0.0 UG 0 0 0 eth0
[root@TSTgcota sbin]# telnet 192.168.75.1
Trying 192.168.75.1...
telnet: connect to address 192.168.75.1: No route to host
telnet: Unable to connect to remote host: No route to host
[root@TSTgcota sbin]# ssh 192.168.75.1
ssh: connect to host 192.168.75.1 port 22: No route to host
[root@TSTgcota sbin]#


Why ?? the linux server have ip address 10.155.25.22=TSTgcota.

Hi

Do You have eth0 up ?
Show the output of this commands
ip a s
ip r s

Regards

Also check the cable at the interface and on the switch. Make sure that the target is up as well. Do you have the 10.168.70.0 and 192.168.75.1 networks on the same network segment, or is eth0 for both a mistake?

Hi,
eth0 is up

What is the IP address of eth0. You have routes to different networks without gateways. Does it have virtual IP addresses?
Please post the output of "ifconfig".

does 192.168.75.1 ping?
is telnet or ssh installed (and not blocking you) at 192.168.75.1??