Which two commands should the administrator run from the XenServer console to find out if any ports are blocked?

Scenario: An administrator is able to connect on some ports of a XenServer and NOT connect on others. The XenServer responds by indicating that some of the ports are blocked. The interface in question is the first Ethernet NIC. Which two commands should the administrator run from the XenServer console to find out if any ports are blocked? (Choose two.)
A. ip addr -r
B. ethtool -Al
C. netreport -r
D. iptables -nL
E. tcpdump -i eth0

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