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Calculating Cisco Meraki BSSID MAC Addresses

Each SSID on a Cisco Meraki access point is represented as a unique MAC address known as a BSSID. While several APs in an ESS (extended service set) may advertise the same SSID, the BSSID serves as a unique identifier for clients to know which AP they are associated with.  The BSSID will be seen in wireless packet captures and as the MAC address a client is associated to.

 

The sections below identify how these MAC addresses are calculated. When referencing the tables below, assume the wired MAC address of the AP begins with the MAC OUI specified, followed by 00:00:00. You can download a list of wired MAC addresses for your network using the Dashboard under Wireless > Access points or using the Dashboard API.

 

There are 15 possible BSSID combinations for each radio, starting with SSID 1 and ending with SSID 15. These SSID #'s correspond to the order of the SSIDs from left to right as seen on Wireless > Configure > SSID page on Dashboard and selecting "Show all my SSIDs".

MR12, MR16, MR18, MR24, MR62, MR66

Any given access point's MAC address may start with one of the following OUIs. Please reference the appropriate section below to find BSSID calculations for your specific access point. 

MAC OUI of 00:18:0A

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: No change
5 GHz: +0x02 to 1st octet for SSID 1 only, +0x10 to 3rd octet 

 

SSID #

BSSID Calculation

1

No change

2

+ 0x06 to 1st octet

3-15

+ 0x04 to 1st octet

 

2.4 GHz Radio

5 GHz Radio

SSID 1

00:18:0A:00:00:00

02:18:1A:00:00:00

SSID 2

06:18:0A:00:00:00

06:18:1A:00:00:00

SSID 3

0A:18:0A:00:00:00

0A:18:1A:00:00:00

SSID 4

0E:18:0A:00:00:00

0E:18:1A:00:00:00

SSID 5

12:18:0A:00:00:00

12:18:1A:00:00:00

SSID 6

16:18:0A:00:00:00

16:18:1A:00:00:00

SSID 7

1A:18:0A:00:00:00

1A:18:1A:00:00:00

SSID 8

1E:18:0A:00:00:00

1E:18:1A:00:00:00

SSID 9

22:18:0A:00:00:00

22:18:1A:00:00:00

SSID 10

26:18:0A:00:00:00

26:18:1A:00:00:00

SSID 11

2A:18:0A:00:00:00

2A:18:1A:00:00:00

SSID 12

2E:18:0A:00:00:00

2E:18:1A:00:00:00

SSID 13

32:18:0A:00:00:00

32:18:1A:00:00:00

SSID 14

36:18:0A:00:00:00

36:18:1A:00:00:00

SSID 15

3A:18:0A:00:00:00

3A:18:1A:00:00:00

MAC OUI of 88:15:44

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: No change
5 GHz: +0x02 to 1st octet for SSID 1 only, +0x10 to 3rd octet 

 

SSID #

BSSID Calculation

1

No change

2

+ 0x06

3

- 0x0C

4

+ 0x04

5 + 0x14
6 + 0x04

7

- 0x0C

8

+ 0x04

9 + 0x14
10 + 0x04

11

- 0x0C

12

+ 0x04

13 + 0x14
14 + 0x04

15

- 0x0C

 

 

2.4 GHz Radio

5 GHz Radio

SSID 1

88:15:44:00:00:00

8A:15:54:00:00:00

SSID 2

8E:15:44:00:00:00

8E:15:54:00:00:00

SSID 3

82:15:44:00:00:00

82:15:54:00:00:00

SSID 4

86:15:44:00:00:00

86:15:54:00:00:00

SSID 5

9A:15:44:00:00:00

9A:15:54:00:00:00

SSID 6

9E:15:44:00:00:00

9E:15:54:00:00:00

SSID 7

92:15:44:00:00:00

92:15:54:00:00:00

SSID 8

96:15:44:00:00:00

96:15:54:00:00:00

SSID 9

AA:15:44:00:00:00

AA:15:54:00:00:00

SSID 10

AE:15:44:00:00:00

AE:15:54:00:00:00

SSID 11

A2:15:44:00:00:00

A2:15:54:00:00:00

SSID 12

A6:15:44:00:00:00

A6:15:54:00:00:00

SSID 13

BA:15:44:00:00:00

BA:15:54:00:00:00

SSID 14

BE:15:44:00:00:00

BE:15:54:00:00:00

SSID 15

B2:15:44:00:00:00

B2:15:54:00:00:00

MR26, MR32, MR34, MR72

Any given access point's MAC address may start with one of the following OUIs. Please reference the appropriate section below to find BSSID calculations for your specific access point. 

MAC OUI of 00:18:0A

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments

2.4 GHz: +0x02 to 1st octet; +0x40 to 3rd octet
5 GHz: +0x02 to 1st octet; +0x50 to 3rd octet

 

SSID # BSSID Calculation
1 No change
2-15 + 0x01 to 6th octet
  2.4 GHz Radio 5 GHz Radio
SSID 1 02:18:4A:00:00:00 02:18:5A:00:00:00
SSID 2 02:18:4A:00:00:01 02:18:5A:00:00:01
SSID 3 02:18:4A:00:00:02 02:18:5A:00:00:02
SSID 4 02:18:4A:00:00:03 02:18:5A:00:00:03
SSID 5 02:18:4A:00:00:04 02:18:5A:00:00:04
SSID 6 02:18:4A:00:00:05 02:18:5A:00:00:05
SSID 7 02:18:4A:00:00:06 02:18:5A:00:00:06
SSID 8 02:18:4A:00:00:07 02:18:5A:00:00:07
SSID 9 02:18:4A:00:00:08 02:18:5A:00:00:08
SSID 10 02:18:4A:00:00:09 02:18:5A:00:00:09
SSID 11 02:18:4A:00:00:0A 02:18:5A:00:00:0A
SSID 12 02:18:4A:00:00:0B 02:18:5A:00:00:0B
SSID 13 02:18:4A:00:00:0C 02:18:5A:00:00:0C
SSID 14 02:18:4A:00:00:0D 02:18:5A:00:00:0D
SSID 15 02:18:4A:00:00:0E 02:18:5A:00:00:0E

MAC OUI of 88:15:14

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: +0x02 to 1st octet; -0x40 to 3rd octet
5 GHz: +0x02 to 1st octet; -0x30 to 3rd octet

 

SSID # BSSID Calculation
1 No change
1-15 + 0x01 to 6th octet

 

  2.4 GHz Radio 5 GHz Radio
SSID 1 8A:15:04:00:00:00 8A:15:14:00:00:00
SSID 2 8A:15:04:00:00:01 8A:15:14:00:00:01
SSID 3 8A:15:04:00:00:02 8A:15:14:00:00:02
SSID 4 8A:15:04:00:00:03 8A:15:14:00:00:03
SSID 5 8A:15:04:00:00:04 8A:15:14:00:00:04
SSID 6 8A:15:04:00:00:05 8A:15:14:00:00:05
SSID 7 8A:15:04:00:00:06 8A:15:14:00:00:06
SSID 8 8A:15:04:00:00:07 8A:15:14:00:00:07
SSID 9 8A:15:04:00:00:08 8A:15:14:00:00:08
SSID 10 8A:15:04:00:00:09 8A:15:14:00:00:09
SSID 11 8A:15:04:00:00:0A 8A:15:14:00:00:0A
SSID 12 8A:15:04:00:00:0B 8A:15:14:00:00:0B
SSID 13 8A:15:04:00:00:0C 8A:15:14:00:00:0C
SSID 14 8A:15:04:00:00:0D 8A:15:14:00:00:0D
SSID 15 8A:15:04:00:00:0E 8A:15:14:00:00:0E

 

MAC OUI of E0:55:3D

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: +0x02 to 1st octet; +0x40 to 3rd octet
5 GHz: +0x02 to 1st octet; +0x30 to 3rd octet

 

SSID # BSSID Calculation
1 No change
2-15 + 0x01 to 6th octet
  2.4 GHz Radio 5 GHz Radio
SSID 1 E2:55:7D:00:00:00 E2:55:6D:00:00:00
SSID 2 E2:55:7D:00:00:01 E2:55:6D:00:00:01
SSID 3 E2:55:7D:00:00:02 E2:55:6D:00:00:02
SSID 4 E2:55:7D:00:00:03 E2:55:6D:00:00:03
SSID 5 E2:55:7D:00:00:04 E2:55:6D:00:00:04
SSID 6 E2:55:7D:00:00:05 E2:55:6D:00:00:05
SSID 7 E2:55:7D:00:00:06 E2:55:6D:00:00:06
SSID 8 E2:55:7D:00:00:07 E2:55:6D:00:00:07
SSID 9 E2:55:7D:00:00:08 E2:55:6D:00:00:08
SSID 10 E2:55:7D:00:00:09 E2:55:6D:00:00:09
SSID 11 E2:55:7D:00:00:0A E2:55:6D:00:00:0A
SSID 12 E2:55:7D:00:00:0B E2:55:6D:00:00:0B
SSID 13 E2:55:7D:00:00:0C E2:55:6D:00:00:0C
SSID 14 E2:55:7D:00:00:0D E2:55:6D:00:00:0D
SSID 15 E2:55:7D:00:00:0E E2:55:6D:00:00:0E

MR30H, MR33, MR42, MR52, MR53, MR74, MR84

Any given access point's MAC address may start with one of the following OUIs. Please reference the appropriate section below to find BSSID calculations for your specific access point. 

MAC OUI of 88:15:44

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: No change
5 GHz: +0x02 to 1st octet for SSID 1 only; +0x10 to 3rd octet

 

SSID # BSSID Calculation
1 No change
2 + 0x06 to 1st octet
3 - 0x0C to 1st octet
4 + 0x04 to 1st octet
5 + 0x14 to 1st octet
6 + 0x04 to 1st octet
7 - 0x0C to 1st octet
8 + 0x04 to 1st octet
9 + 0x14 to 1st octet
10 +0x04 to 1st octet
11 - 0x0C to 1st octet
12 + 0x04 to 1st octet
13 + 0x14 to 1st octet
14 + 0x04 to 1st octet
15 - 0x0C to 1st octet

 

  2.4 GHz Radio 5 GHz Radio
SSID 1 88:15:44:00:00:00 8A:15:54:00:00:00
SSID 2 8E:15:44:00:00:00 8E:15:54:00:00:00
SSID 3 82:15:44:00:00:00 82:15:54:00:00:00
SSID 4 86:15:44:00:00:00 86:15:54:00:00:00
SSID 5 9A:15:44:00:00:00 9A:15:54:00:00:00
SSID 6 9E:15:44:00:00:00 9E:15:54:00:00:00
SSID 7 92:15:44:00:00:00 92:15:54:00:00:00
SSID 8 96:15:44:00:00:00

96:15:54:00:00:00

SSID 9 AA:15:44:00:00:00 AA:15:54:00:00:00
SSID 10 AE:15:44:00:00:00 AE:15:54:00:00:00
SSID 11 A2:15:44:00:00:00 A2:15:54:00:00:00
SSID 12 A6:15:44:00:00:00 A6:15:54:00:00:00
SSID 13 BA:15:44:00:00:00 BA:15:54:00:00:00
SSID 14 BE:15:44:00:00:00 BE:15:54:00:00:00
SSID 15 B2:15:44:00:00:00 B2:15:54:00:00:00

MAC OUI of E0:55:3D

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: No change
5 GHz: +0x02 to 1st octet for SSID 1 only; -0x10 to 3rd octet

 

SSID # BSSID Calculation
1

No change

2 + 0x06 to 1st octet
3-8 + 0x04 to 1st octet
9 - 0x3C to 1st octet
10-15 + 0x04 to 1st octet

 

  2.4 GHz Radio 5 GHz Radio
SSID 1 E0:55:3D:00:00:00

E2:55:2D:00:00:00

SSID 2 E6:55:3D:00:00:00 E6:55:2D:00:00:00
SSID 3 EA:55:3D:00:00:00 EA:55:2D:00:00:00
SSID 4 EE:55:3D:00:00:00 EE:55:2D:00:00:00
SSID 5 F2:55:3D:00:00:00 F2:55:2D:00:00:00
SSID 6 F6:55:3D:00:00:00 F6:55:2D:00:00:00
SSID 7 FA:55:3D:00:00:00 FA:55:2D:00:00:00
SSID 8 FE:55:3D:00:00:00 FE:55:2D:00:00:00
SSID 9 C2:55:3D:00:00:00 C2:55:2D:00:00:00
SSID 10 C6:55:3D:00:00:00 C6:55:2D:00:00:00
SSID 11 CA:55:3D:00:00:00 CA:55:2D:00:00:00
SSID 12 CE:55:3D:00:00:00 CE:55:2D:00:00:00
SSID 13 D2:55:3D:00:00:00 D2:55:2D:00:00:00
SSID 14 D6:55:3D:00:00:00 D6:55:2D:00:00:00
SSID 15 DA:55:3D:00:00:00 DA:55:2D:00:00:00

 

MAC OUI of 0C:8D:DB

The "Radio Adjustments" shown below pertain to changes made to the MAC address specific to each radio (2.4 GHz and 5 GHz). These radio-specific adjustments are not considered in the BSSID calculations. The BSSID calculations are based on the AP MAC address that can be found here

Radio Adjustments
2.4 GHz: No change
5 GHz: +0x02 to 1st octet for SSID 1 only; -0x10 to 3rd octet

 

SSID # BSSID Calculation
1

No change

2 - 0x02 to 1st octet
3-4 - 0x04 to 1st octet
5 + 0x1C to 1st octet
6-8 - 0x04 to 1st octet
9 + 0x1C to 1st octet
10-12 - 0x04 to 1st octet
13 + 0x1C to 1st octet
14-15 - 0x04 to 1st octet
  2.4 GHz Radio 5 GHz Radio
SSID 1 0C:8D:DB:00:00:00

0E:8D:CB:00:00:00

SSID 2 0A:8D:DB:00:00:00 0A:8D:CB:00:00:00
SSID 3 06:8D:DB:00:00:00 06:8D:CB:00:00:00
SSID 4 02:8D:DB:00:00:00 02:8D:CB:00:00:00
SSID 5 1E:8D:DB:00:00:00 1E:8D:CB:00:00:00
SSID 6 1A:8D:DB:00:00:00 1A:8D:CB:00:00:00
SSID 7 16:8D:DB:00:00:00 16:8D:CB:00:00:00
SSID 8 12:8D:DB:00:00:00 12:8D:CB:00:00:00
SSID 9 2E:8D:DB:00:00:00 2E:8D:CB:00:00:00
SSID 10 2A:8D:DB:00:00:00 2A:8D:CB:00:00:00
SSID 11 26:8D:DB:00:00:00 26:8D:CB:00:00:00
SSID 12 22:8D:DB:00:00:00 22:8D:CB:00:00:00
SSID 13 3E:8D:DB:00:00:00 3E:8D:CB:00:00:00
SSID 14 3A:8D:DB:00:00:00 3A:8D:CB:00:00:00
SSID 15 36:8D:DB:00:00:00 36:8D:CB:00:00:00
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Last modified
18:58, 15 Oct 2017

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