[SOLVED] unable to ping or ssh any machine on network

deep27ak · 11-09-2011, 04:32 AM

Hello all,

I have come across some strange issue which I am not able to overcome

I have 2 RHEL 5.2 installed on vmware workstation 6

Code:

IP of RHEL 1 -----> 192.168.0.233
IP of RHEL 2 -----> 192.168.0.106
IP of Windows 7 -----> 192.168.0.81

the vmware is installed on windows 7
Till yesterday everything was working fine. But since today morning when I started the VM, my windows machine is not able to ping the VMs

Strange thing is that I ran IPscan to check for those IP(233 and 106), it says that both are in network but still unable to ping?

I have checked every possible thing as per my knowledge, (i am very poor in networking )

Code:

/etc/hosts
/etc/resolv.conf
/etc/sysconfig/ntwork-scripts/ifcfg-eth0

the vmware network adapter is set to bridged networking

Code:

#ethtool eth0
link yes

Issues:

1.The VM's are able to ping each other but not my windows machine
2.I am unable to ping my gateway or DNS
3.telnet localhost returns with error

Code:

#telnet localhost
telnet: connect to address 127.0.0.1: connection refused 
telnet: unable to connect to remote host: connection refused

Code:

#vi /etc/hosts
::1 localhost6.localdomain6   localhost6
127.0.0.1 locahost.localdomain    localhost
192.168.0.233   server.deepsoft.com     server

Code:

#vi /etc/resolv.conf
search deepsoft
nameserver x.x.x.x

Can anyone guide me, how can I fix this?
I want to use my linux on putty but due to this issue I am unable to do so

Every time I try to ping, I get host unreachable error

SecretCode · 11-09-2011, 05:35 AM

It sounds like an issue with the network adapter component of vmware. But I'm not entirely clear on what can ping what - you haven't always said which machine you are pinging from.

Is this right:
On RHEL 1 you can ping RHEL 2 successfully, but not ping the windows host or your gateway?
Same on RHEL2?
On the windows host you can't ping the RHEL guests (but you could before)?

What does ifconfig -a report on each guest? What does ipconfig /all report on the host?

deep27ak · 11-09-2011, 06:02 AM

Quote:

Originally Posted by SecretCode

It sounds like an issue with the network adapter component of vmware. But I'm not entirely clear on what can ping what - you haven't always said which machine you are pinging from.

Is this right:
On RHEL 1 you can ping RHEL 2 successfully, but not ping the windows host or your gateway?
Same on RHEL2?
On the windows host you can't ping the RHEL guests (but you could before)?

What does ifconfig -a report on each guest? What does ipconfig /all report on the host?

ok let me explain again

windows 7 is not able to ping either linux machine on VM
and both the machines on VM can ping each other

I have attached few files, please check them :

Issue is with linux VM through which I am not able to ping windows machine and vice versa

16pide · 11-09-2011, 06:07 AM

could you also post the output on the linux VMs of those commands:

Code:

route
ifconfig
nmap -sP 192.168.0.0/24

and the equivalent under windows

also I suggest you make all your ping tests using IP addresses, this way, we know dns is not involved.

deep27ak · 11-09-2011, 06:15 AM

Quote:

Originally Posted by 16pide

could you also post the output on the linux VMs of those commands:

Code:

route
ifconfig
nmap -sP 192.168.0.0/24

and the equivalent under windows

also I suggest you make all your ping tests using IP addresses, this way, we know dns is not involved.

you can check attach fles

I am pinging through IP address from windows as well as linux machine

SecretCode · 11-09-2011, 06:57 AM

ifconfig says you have an IPv4 address, nmap says you don't. That's odd.

Please post the output of ipconfig /all from the host.

deep27ak · 11-09-2011, 07:03 AM

Quote:

Originally Posted by SecretCode

ifconfig says you have an IPv4 address, nmap says you don't. That's odd.

Please post the output of ipconfig /all from the host.

you can check the attachment

SecretCode · 11-09-2011, 07:46 AM

Are you not able to copy & paste as text? Using code tags? Much easier for us to work with.

deep27ak · 11-09-2011, 07:50 AM

Quote:

Originally Posted by SecretCode

Are you not able to copy & paste as text? Using code tags? Much easier for us to work with.

Since I am not able to connect through putty that is why i am using these attachment because its not possible to copy and paste from VM to windows

sorry for that but please can you tell me what could be the issue

I deleted that network adapter and created a new one in the VM but still same problem.

deep27ak · 11-09-2011, 08:24 AM

well thnx friends for your interest but it seems I have solved the problem

I will leave the solution for other users who face this issue

It is actually nothing to do with LINUX or WINDOWS

Quote:

It is something with vmware so I apologize for posting this post

When I had installed vmware workstation, I didn't noticed by default a vmware network adapter also got installed which was handling all the network adapter stuff.

I am still surprised to see that the default network adapter option in there was changed to something else and that is the reason my VMs were unable to connect to their network adapter

Well its pretty VM stuff so I won't elaborate further

Thanks again SecretCode and 16pide

SecretCode · 11-09-2011, 09:48 AM

Quote:

Originally Posted by SecretCode

It sounds like an issue with the network adapter component of vmware.

I was right!

Glad you've found the fix.

tieulytamhoan · 09-05-2012, 02:02 AM

Quote:

Originally Posted by deep27ak

well thnx friends for your interest but it seems I have solved the problem

I will leave the solution for other users who face this issue

It is actually nothing to do with LINUX or WINDOWS

When I had installed vmware workstation, I didn't noticed by default a vmware network adapter also got installed which was handling all the network adapter stuff.

I am still surprised to see that the default network adapter option in there was changed to something else and that is the reason my VMs were unable to connect to their network adapter

Well its pretty VM stuff so I won't elaborate further

Thanks again SecretCode and 16pide

Hi deep27ak,

I have the same problem as you had when doing my project. It takes me several weeks digging webpages as well as forums but I could not figure out how to solve it.

Please be kind enough to help me solve this painful trouble. Looking forward to you. Highly appreciated.

deep27ak · 09-05-2012, 02:33 AM

Quote:

Originally Posted by tieulytamhoan

Hi deep27ak,

I have the same problem as you had when doing my project. It takes me several weeks digging webpages as well as forums but I could not figure out how to solve it.

Please be kind enough to help me solve this painful trouble. Looking forward to you. Highly appreciated.

The problem I faced was that

The network adapter I selected in my virtual box was selected to NAT which I changed to "Bridged" and selected my ethernet adapter

Check the network settings of your VMware

tieulytamhoan · 09-05-2012, 07:46 PM

Quote:

Originally Posted by deep27ak

The problem I faced was that

The network adapter I selected in my virtual box was selected to NAT which I changed to "Bridged" and selected my ethernet adapter

Check the network settings of your VMware

Thanks for your enthusiasm, deep2k7. Problem was found.

It was something didn't go well with the network card configured inside my virtual CentOS Linux running VMWare.

Solution shared for who has to cope with this painful issue:
1. Remove the network card in "Network Configuration".
2. Restart both virtual machine and physical machine.
3. Make a new network card.
4. Testing ping.
[5. If trouble still exist -> write emails for VMWare & Linux ^_^]

Cheers, guys!

oamohammedshiraz · 12-16-2012, 11:40 PM

Thanks a ton for the tip... it worked for me