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I am using netcfg to configure two interfaces in my archlinux VM. In VirtualBox I have set two active interfaces. The first (eth0) is the NAT interface to provide the VM with Internet access. The second (eth1) is a host-only network so I can access the VM directly from the host.

I have tried to configure eth0 with dhcp since it doesnt matter what IP-address it gets from the NAT. And I have tried to configure eth1 with a static IP in the host-only network.

Everything seems to work fine, but here is the thing. If I activate the eth1 interface (host-only) I am able to ping it from the host (as expected), but if I then enable the eth0 interface (nat) I am not able to access the Internet (tried to ping 8.8.8.8). But, if I then disable eth1, eth0 suddenly works fine. Long story short: The NAT interface wont work simultaneously with the host-only interface. The host-only interface seem to always work.

It is because of this I thought the problem existed in the configuration of eth1, since it obviously hindered eth0 to work properly. The configurations are very simplistic, but I have been unsuccessfull to identify the error.

Configuration of eth0 (nat)

INTERFACE="eth0"
CONNECTION="ethernet"
DESCRIPTION="DHCP (NAT for Internet access"
IP="dhcp"

Configuration of eth1 (host-only)

INTERFACE="eth1"
CONNECTION="ethernet"
DESCRIPTION="Static IP (development)"
IP="static"
ADDR="192.168.56.100"
GATEWAY="192.168.56.1"
NETMASK="255.255.255.0"

1 Answer 1

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I was unable to identify the source of the problem, and therefore moved to try Vagrant.

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