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not able to ping two Linux systems installed on VM

Hi,

In my office I have two systems and I installed VM on both the systems and then installed Linux 5.0 on them. I'm doing ifconfig to obtain IP address of both the Linux machines installed on VM, but when I try to ping each one of them they are not responding. How do I fix this?

Thanks

Quote:

Originally Posted by pvn_80 (Post 3801673)

Based on what you say, we've no idea.

You say "Linux 5.0"...WHAT linux? RedHat? SUSE? Debian? What kind of network configuration?

Post the output of both of the ifconfig statements for ONLY the interfaces you're talking about, and the routing table (output of the "route" command). You may have interfaces down, no default route, different networks, etc.

Are the linux boxes on two different VM hosts, or on the same one? Running what kind of VM software?

What type of network interface did you setup? NAT? Bridged? etc. What are the IP addresses of the machines?

not able to ping two Linux systems installed on VM Reply to Thread

TB0ne,

This is what I have setup.System1 and System2 are two separate desktops on the same network

System1: Windows XP
IP:172.21.45.77
VM 6.5.1
On this VM I have installed RHEL 5.0 and named it station1. Below is the output of ifconfig and route:

[root@station1 ~]#ifconfig

eth0 Link encap:Ethernet HWaddr 00:0C:29:D2:B5:B0
inet addr:192.168.223.129 Bcast:192.168.223.255 Mask:255.255.255.0
inet6 addr:fe80::20c:29ff:fed2:b5b0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packtes:169 errors:0 dropped:0 overruns:0 frame:0
TX packets:148 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:20358 (19.8 KiB) TX bytes:26999 (18.6 KiB)
Interrupt:67 Base address:0x2000

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 NTU:16436 Metric:1
RX packets:3888 errors:0 dropped:0 overruns:0 frame:0
TX packets:3888 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8070948 (7.6 MiB) TX bytes:8070948 (7.6 MiB)

[root@station1 ~]#route
kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.223.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
default 192.168.223.2 0.0.0.0 UG 0 0 0 eth0

System2: Windows XP
IP:172.21.45.15
VM 6.5.1
On this VM I have installed RHEL 5.0 and named it Server1. Below is the output of ifconfig and route:

[root@Server1 ~]#ifconfig

eth0 Link encap:Ethernet HWaddr 00:0C:29:D2:B5:B0
inet addr:192.168.107.128 Bcast:192.168.107.255 Mask:255.255.255.0
inet6 addr:fe80::20c:29ff:fed2:b5b0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packtes:267 errors:0 dropped:0 overruns:0 frame:0
TX packets:259 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:27892 (27.2 KiB) TX bytes:26999 (26.3 KiB)
Interrupt:67 Base address:0x2000

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 NTU:16436 Metric:1
RX packets:12795 errors:0 dropped:0 overruns:0 frame:0
TX packets:12795 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5442880 (5.1 MiB) TX bytes:26999 (5.1 MiB)

[root@Server1 ~]#route
kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.107.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
default 192.168.107.2 0.0.0.0 UG 0 0 0 eth0

Sounds like a routing issue. Assuming your guests are on a NAT-ed network, not host only, the hosts act as routers. You need to tell each host how to get to the VM networks on the other host. On System 1, try "route add 192.168.107.0 mask 255.255.255.0 172.21.45.15". And on System 2 try "route add 192.168.223.0 mask 255.255.255.0 172.21.45.77"

That or change your VM from NAT to Bridged and let them pull and IP from your router and be on the same network.

Also in VMware when you set up a NAT network connection, your Virtual Machine will get a 192.x.x.x network address. The host also gets a virtual address of 192.x.x.x. This allows the VM to communicate to the Host and other VM's on that host but I do not think it can communicate with other host or VMs on other host unless you set specific routes. I prefer to do Bridged connections to avoid having to do routes and such.

NAT networking shares the host IP. Ping doesn't work in this case.