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I'm running VBox under Mac OS with multiple Linux guests (Redhat). Everything works fine except I want to test dual NICs in one of my guests. I'm using host-only adapters and would like to simulate multiple NICs in the guests. I added the second NIC but it doesn't show up in the OS.

Nothing under /etc/sysconfig/network-scripts/ besides ifcfg-eth0

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migrated from serverfault.com Feb 29 '12 at 22:18

This question came from our site for system and network administrators.

Describe exactly your VB network configuration. What steps did you take to set up the adapter under Linux? What does ifconfig -a show? – Gilles Feb 29 '12 at 23:41
Adding another interface won't magically create a configuration in /etc/sysconfig/network-scripts. You have to do that yourself. Gilles has already pointed out the correct tool for listing available interfaces. You could also use ip link show, or look in /sys/class/net. – larsks Mar 1 '12 at 2:45
I got it working, I needed another NIC in my host (laptop). I ended up enabling my wifi, that gave me a second NIC inside my guest. – luckytaxi Mar 1 '12 at 18:07

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