The Ethertype column is always left empty when running this command:

$ openstack security group rule list --long
+------ ------- ------- ------- ------- ----+-- ------- ----+-- ------- -+----- ------- +------ -----+- ------- ---+--- ------- ------- ------- ------- ------- +------ ------- ------- ------- ------- ----+
| ID | IP Protocol | IP Range | Port Range | Direction | Ethertype | Remote Security Group | Security Group |
+------ ------- ------- ------- ------- ----+-- ------- ----+-- ------- -+----- ------- +------ -----+- ------- ---+--- ------- ------- ------- ------- ------- +------ ------- ------- ------- ------- ----+
| 1f498887- 20dc-4cb0- b5da-1a5caf415b 09 | None | None | | egress | | None | 764783f5- 0446-487d- 89a1-8a26352bb4 3f |
| 506c8610- efaf-4b9a- 9938-fe8735572d 2f | None | None | | egress | | None | 38e52f6f- 4bb5-47d1- 807f-1010c07a69 6e |
| 69fafbee- 00b4-4361- 97fb-7c2e6641d9 f5 | None | None | | ingress | | 66da3a85- c08c-4a79- 815a-b2eb9dcd3c 7b | 66da3a85- c08c-4a79- 815a-b2eb9dcd3c 7b |
| 6ccdaf40- 76cb-4d6c- 8190-f97b142fbc 53 | None | None | | ingress | | 38e52f6f- 4bb5-47d1- 807f-1010c07a69 6e | 38e52f6f- 4bb5-47d1- 807f-1010c07a69 6e |
| 7a50b5b2- 14d7-4281- a142-7ffa6bd0aa b7 | None | None | | egress | | None | 66da3a85- c08c-4a79- 815a-b2eb9dcd3c 7b |
| 806b53ee- 17d8-4b02- b87b-eb82be776e 49 | None | None | | ingress | | 38e52f6f- 4bb5-47d1- 807f-1010c07a69 6e | 38e52f6f- 4bb5-47d1- 807f-1010c07a69 6e |
| 8f58e2d1- 8639-4e72- ad80-1377ff49c4 f7 | None | None | | egress | | None | 764783f5- 0446-487d- 89a1-8a26352bb4 3f |
| 9420f9bc- 4089-4c6c- 9e79-4121995baa 66 | None | None | | egress | | None | 38e52f6f- 4bb5-47d1- 807f-1010c07a69 6e |
| b0617ca6- 3c68-422d- 91e6-2dac6e513c 9f | None | None | | ingress | | 764783f5- 0446-487d- 89a1-8a26352bb4 3f | 764783f5- 0446-487d- 89a1-8a26352bb4 3f |
| b6e4b310- 197e-4e21- 86f3-75b17f6e01 25 | None | None | | egress | | None | 47265f0c- 2bf0-4e9c- 8fc5-65409501e8 c4 |
| c952e37f- fcb8-46e7- 8527-21d34c69b0 de | None | None | | egress | | None | 66da3a85- c08c-4a79- 815a-b2eb9dcd3c 7b |
| ce69a10e- 7936-4397- 818d-a55df50dd6 58 | None | None | | ingress | | 47265f0c- 2bf0-4e9c- 8fc5-65409501e8 c4 | 47265f0c- 2bf0-4e9c- 8fc5-65409501e8 c4 |
| e169a2d8- 3ce1-4b76- 87f1-8c62fade34 ba | None | None | | ingress | | 764783f5- 0446-487d- 89a1-8a26352bb4 3f | 764783f5- 0446-487d- 89a1-8a26352bb4 3f |
| fa3e8c78- 8ddd-4d07- 89e6-074889abde 29 | None | None | | ingress | | 66da3a85- c08c-4a79- 815a-b2eb9dcd3c 7b | 66da3a85- c08c-4a79- 815a-b2eb9dcd3c 7b |
| fc631256- d1c8-463f- a42a-a5e1d2c351 8d | None | None | | ingress | | 47265f0c- 2bf0-4e9c- 8fc5-65409501e8 c4 | 47265f0c- 2bf0-4e9c- 8fc5-65409501e8 c4 |
| ff75418b- 9444-407a- 962d-e4508eeffb ad | None | None | | egress | | None | 47265f0c- 2bf0-4e9c- 8fc5-65409501e8 c4 |
+------ ------- ------- ------- ------- ----+-- ------- ----+-- ------- -+----- ------- +------ -----+- ------- ---+--- ------- ------- ------- ------- ------- +------ ------- ------- ------- ------- ----+