Use a ping command to verify that communication is allowed over a Proxy ARP path linking a subnet tag (PKEY) and an Ethernet VLAN.

In the following example, a ping is issued from the SLES 11 partition connected to the IPoIB port with subnet tag (PKEY) 0x8fa0 to a non-partitionable enterprise partition (NEPP) connected to the Ethernet VLAN 4000 port of the InfiniBand-Ethernet gateway switch:

sles11sp3-vm1:~ # ping -c 4 172.40.0.31
PING 172.40.0.31 (172.40.0.31) 56(84) bytes of data.
64 bytes from 172.40.0.31: icmp_seq=1 ttl=127 time=1004 ms
64 bytes from 172.40.0.31: icmp_seq=2 ttl=127 time=0.066 ms
64 bytes from 172.40.0.31: icmp_seq=3 ttl=127 time=0.093 ms
64 bytes from 172.40.0.31: icmp_seq=4 ttl=127 time=0.135 ms
--- 172.40.0.31 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.066/251.211/1004.550/434.940 ms