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LPI

202-400 · Question #35

A server with 2 network interfaces, eth0 and eth1, should act as a router. eth0 has the IP address 192.168.0.1 in the subnet 192.168.0.1/24 and eth1 has the IP address 10.0.0.1 in the subnet…

The correct answer is A. Enable IP forwarding with echo "1" > /proc/sys/net/ipv4/ip_forward C. Reconfigure the firewall rules to allow traffic to traverse the networks. See the full explanation below for the reasoning.

Question

A server with 2 network interfaces, eth0 and eth1, should act as a router. eth0 has the IP address 192.168.0.1 in the subnet 192.168.0.1/24 and eth1 has the IP address 10.0.0.1 in the subnet 10.0.0.0/16. The routing table looks fine, but no data is traversing the networks. Which TWO of the following need to be done?

Options

  • AEnable IP forwarding with echo "1" > /proc/sys/net/ipv4/ip_forward
  • BAdd new firewall chains to handle inbound & outbound traffic on both interfaces.
  • CReconfigure the firewall rules to allow traffic to traverse the networks.
  • DThe routing table needs to be restarted, for the changes to take effect.
  • EThe server needs to be restarted, for the changes to take effect.

How the community answered

(31 responses)
  • A
    81% (25)
  • B
    6% (2)
  • D
    10% (3)
  • E
    3% (1)

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