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Multiple NIC's - Ping responds with IPv6
Hi Experts,
I have a faew servers all hosted at a local datacenter. Each server has 3 NIC's installed. Each server has a NIC for the backup network at the datacenter, a NIC for accessing the public internet and the third NIC is for a private network. On the Microsoft SQL server, we do not have the NIC with public internet access enabled, so it access the other servers via the private network, 10.0.0.X
When I ping from server1 to the SQL server, it responds with a IPv6 address. Ultimately, I am trying to resolve this issues so they respond via IPv4. On the SQL server, it seems if all traffic is being routed out the backup network NIC and not the private network NIC as it should be. If I disable the backup network NIC and only have the private NIC enabled, I can no longer RDP between servers and they don't respond to any ping request. I've even added the private addresses to the host file and no luck. I've also disabled IPv6 in the private NIC on all servers.
Is there a way to say which NIC the server should use first?
Thanks!
I have a faew servers all hosted at a local datacenter. Each server has 3 NIC's installed. Each server has a NIC for the backup network at the datacenter, a NIC for accessing the public internet and the third NIC is for a private network. On the Microsoft SQL server, we do not have the NIC with public internet access enabled, so it access the other servers via the private network, 10.0.0.X
When I ping from server1 to the SQL server, it responds with a IPv6 address. Ultimately, I am trying to resolve this issues so they respond via IPv4. On the SQL server, it seems if all traffic is being routed out the backup network NIC and not the private network NIC as it should be. If I disable the backup network NIC and only have the private NIC enabled, I can no longer RDP between servers and they don't respond to any ping request. I've even added the private addresses to the host file and no luck. I've also disabled IPv6 in the private NIC on all servers.
Is there a way to say which NIC the server should use first?
Thanks!
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ASKER
the server will respond with the ping -4 but when I do a tracert it is routing out the public internet NIC, which would explain why it can't connect to the server. Is there a way to change which NIC it can route of?
I did read up on the ROUTE ADD command however we don't have a gateway for the private NIC so I was unable to add a manual route.
I did read up on the ROUTE ADD command however we don't have a gateway for the private NIC so I was unable to add a manual route.
Can you please provide the IP address of the SQL server, and the results of ROUTE PRINT from one of the servers you are trying to ping from?
ASKER
I was able to resolve the issue with the Route Add command.
ASKER
In case anyone else needs it for future reference. It routes all private requests out the private NIC gateway.
route add 10.0.0.0 mask 255.255.255.0 10.0.0.4
route add 10.0.0.0 mask 255.255.255.0 10.0.0.4
ASKER
The backup NIC subnet is255.255.255.0
The internet access NIC subnet is 255.255.255.0
I believe the backup network is on a separate VLAN but will have to double check with my data center.