Hello there,
If your SMB (Server Message Block) traffic is moving to the wrong Network Interface Card (NIC), it could be due to several reasons. Here are some steps you can take to troubleshoot and resolve the issue:
Network Configuration: Check your network configuration settings to ensure that the correct NIC is configured for SMB traffic. This includes checking IP addresses, subnet masks, gateway settings, and DNS configurations.
NIC Priority: Most operating systems allow you to set the priority of network interfaces. Make sure that the NIC you want to use for SMB has a higher priority than the other NICs.
Binding Order: Check the binding order of your network interfaces. The binding order determines the order in which network interfaces are used for communication. Make sure the desired NIC is at the top of the list.
Route Table: Check the routing table of your system to ensure that the correct NIC is being used for the destination IP addresses relevant to SMB traffic.
Firewall and Network Profiles: Windows, for example, has different network profiles (public, private, domain). Make sure the correct profile is assigned to the NIC that you want to use for SMB. Firewalls can also affect traffic flow, so adjust firewall rules accordingly.
Network Card Settings: Check the settings of the NIC itself, including speed, duplex settings, and any advanced settings that might affect how traffic is routed.
Network Metrics: Some systems use network metrics to determine the best route for traffic. Make sure the desired NIC has a lower metric value for SMB traffic.
Network Teaming/Bonding: If you're using network teaming or bonding, ensure that the settings are correctly configured, and the load-balancing or failover settings are appropriate for your SMB traffic.
Driver Updates: Ensure that you have the latest drivers installed for all your NICs. Outdated drivers might cause unexpected behavior.
I used AI provided by ChatGPT to formulate part of this response. I have verified that the information is accurate before sharing it with you.
Hope this resolves your Query !!
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