$ airdecap-ng -l -b 48:5B:39:89:8C:10 -w 37:00:9C:49:21:61:1E:4A:1A:44:6E:2F:20 outputnetsec-01.cap 
Total number of packets read        543544
Total number of WEP data packets    200052
Total number of WPA data packets         0
Number of plaintext data packets         0
Number of decrypted WEP  packets    200052
Number of corrupted WEP  packets         0
Number of decrypted WPA  packets         0

Now we use the decrypted capture, so Wireshark is able to distinguish other protocols than 802.11.