Solved

multihome computer, can't ping one side.

Posted on 2014-09-24
8
427 Views
Last Modified: 2014-09-24
I'm having difficulty pinging a multihome computer form one of network sides. I can ping IPv6, but can't ping IPv4.

I have a hyper-v lab setup follwoing Microsoft Test Lab Guide- Base Configuration. one computer has two network cards as following;

EDGE1:

Windows 2012

NIC-A 10.0.0.2 255.255.255.0, Network Profile (name: corpnet, domain network)

NIC-B 137.107.0.2 (2nd IP 137.107.0.3)  255.255.255.0, Network profile (name:unidentified network, public network)
----------------------------------------------------------------------------

When I try ping both cards locally, I get successful returns.

Now, I tried to ping other hosts on both networks from EDGE1, I get error on NIC-B side as following, note the error reply is from 137.107.0.2, itself, not from the remote host;

C:\> PING 137.107.0.100
Reply from 137.107.0.2: Destination  Host Unreachable

Then, I tried to ping using the remote host name, I get successfuly reply of IPv6.

Then, I tried to ping using the remote host name with -$ (IPv4), I get following error;
Ping request could not find the host.

Then, I went further to see what's happening in IPV4 and IPV6, used following commands;

netsh int ipv4 show neigh
netsh int ipv6 show neigh

It shows that ipv6 has listings of ipv6-mac pairs for remote hosts, but ipv4-mac pairs are empty for remote hosts.

I also tried to disable windows firewalls on both Edge1 and remote hosts, it doesn't help.

I also tried to disable IPv6 on NIC-B, it doesn't help.
0
Comment
Question by:crcsupport
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
8 Comments
 
LVL 58

Accepted Solution

by:
Cliff Galiher earned 167 total points
ID: 40342441
What is the rest of the topology? Where do the other machines exist that you are attempting to ping? Did you attempt to make changes at the hyper-v host or virtual switch level?
0
 
LVL 25

Assisted Solution

by:Ken Boone
Ken Boone earned 167 total points
ID: 40342476
So on the multi homed computer is there one default gateway configured or did you configure a default gateway on each interface.  Only 1 gateway will be used.  If the path back has to go out the NIC that does not have the gateway configured you would need to add persistent static routes on the multi homed machine.
0
 
LVL 1

Author Comment

by:crcsupport
ID: 40342486
This is the lab setup.
Yes, I did try to remove and add, nothing helps. I also tested pinging between Client 1 and INET1, no problem. Only EDGE1 can't communicate with the rest of 137.107.0.0. network in IPv4.
 
lan
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 120

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 166 total points
ID: 40342489
Is the PC on the Edge1 Network have an IP Address of 10.0.0.x ?

where does traceroute show the packet going to which network?
0
 
LVL 1

Author Comment

by:crcsupport
ID: 40342490
Currently I'm not using any gateway.
On EDGE1, Client1, NET1, gateway IP address is empty.
NET1 is DNS server, but I think this is not the matter because I'm testing with only IP addresses.
All 3 computers have static IP addresses as above.
0
 
LVL 1

Author Comment

by:crcsupport
ID: 40342493
Yes, EDGE1 has two network cards,

NIC-A 10.0.0.2 255.255.255.0, Network Profile (name: corpnet, domain network)

NIC-B 137.107.0.2 (2nd IP 137.107.0.3)  255.255.255.0, Network profile (name:unidentified network, public network)
0
 
LVL 1

Author Comment

by:crcsupport
ID: 40342561
I put wrong IP address on EDGE1, 137.107.0.2 instead of 131.107.0.2
I spent a day, and kept inserting wrong ip addresses probably 3 times and the result kept showing the wrong ip on response, but unconsciously I believed it's 131.
This will be my record history being stupid for this much long.

Sorry guys.
0
 
LVL 25

Expert Comment

by:Ken Boone
ID: 40342568
ahah.. thats funny... we have all done that.. and pulled our hair out until we asked for help!
0

Featured Post

Free eBook: Backup on AWS

Everything you need to know about backup and disaster recovery with AWS, for FREE!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

It Is not possible to enable LLDP in vSwitch(at least is not supported by VMware), so in this article we will enable this, and also go trough how to enabled CDP and how to get this information in vSwitches and also in vDS.
Is your company's data protection keeping pace with virtualization? Here are 7 dynamic ways to adapt to rapid breakthroughs in technology.
How to install and configure Citrix XenApp 6.5 - Part 1. In this video tutorial we have explained step by step installation of Citrix XenApp 6.5 Server on Windows Server 2008 R2 is explained in this video. We have explained the difference between…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

742 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question