Managing the devices in an SLBC cluster with the External Management IP
The External Management IP address is used to manage all of the individual devices in a SLBC by adding a special port number. This special port number begins with the standard port number for the protocol you are using and is followed by two digits that identify the chassis number and slot number. The port number can be calculated using the following formula:
service_port x 100 + (chassis_id - 1) x 20 + slot_id
Where:
- service_port is the normal port number for the management service (80 for HTTP, 443 for HTTPS and so on).
- chassis_id is the chassis ID specified as part of the FortiController HA configuration and can be 1 or 2.
- slot_id is the number of the chassis slot.
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By default, chassis 1 is the primary chassis and chassis 2 is the secondary chassis. But the actual primary chassis is the one with the primary FortiController and the primary FortiController can be changed independently of the chassis number. And the chassis_id depends on the chassis number and not on whether the chassis contains the primary FortiController. |
Some examples:
-
HTTPS, chassis 1 slot 2: 443 x 100 + (1 - 1) x 20 + 2 = 44300 + 0 + 2 = 44302:
browse to: https://172.20.120.100:44302
-
HTTP, chassis 2, slot 4: 80 x 100 + (2 - 1) x 20 + 4 = 8000 + 20 + 4 = 8024:
browse to http://172.20.120.100/8024
-
HTTPS, chassis 1, slot 10: 443 x 100 + (1 - 1) x 20 + 10 = 44300 + 0 + 10 = 44310,
browse to https://172.20.120.100/44310
-
HTTPS, chassis 2, slot 10: 443 x 100 + (2 - 1) x 20 + 10 = 44300 + 20 + 10 = 44330:
browse to https://172.20.120.100/44330
-
SNMP query port, chassis 1, slot 4: 161 x 100 + (1 - 1) x 20 + 4 = 16100 + 0 + 4 = 16104
-
Telnet to connect to the CLI of the worker in chassis 2 slot 4:
telnet 172.20.120.100 2324 -
To use SSH to connect to the CLI the worker in chassis 1 slot 5:
ssh admin@172.20.120.100 -p2205
Single chassis or chassis 1 special management port numbers
| Slot number | HTTP (80) | HTTPS (443) | Telnet (23) | SSH (22) | SNMP (161) |
|---|---|---|---|---|---|
| Slot 1 | 8001 | 44301 | 2301 | 2201 | 16101 |
| Slot 2 | 8002 | 44302 | 2302 | 2202 | 16102 |
| Slot 3 | 8003 | 44303 | 2303 | 2203 | 16103 |
| Slot 4 | 8004 | 44304 | 2304 | 2204 | 16104 |
| Slot 5 | 8005 | 44305 | 2305 | 2205 | 16105 |
| Slot 6 | 8006 | 44306 | 2306 | 2206 | 16106 |
| Slot 7 | 8007 | 44307 | 2307 | 2207 | 16107 |
| Slot 8 | 8008 | 44308 | 2308 | 2208 | 16108 |
| Slot 9 | 8009 | 44309 | 2309 | 2209 | 16109 |
| Slot 10 | 8010 | 44310 | 2310 | 2210 | 16110 |
| Slot 11 | 8011 | 44311 | 2311 | 2211 | 16111 |
| Slot 12 | 8012 | 44312 | 2312 | 2212 | 16112 |
| Slot 13 | 8013 | 44313 | 2313 | 2213 | 16113 |
| Slot 14 | 8014 | 44314 | 2314 | 2214 | 16114 |
Chassis 2 special management port numbers
| Slot Number | HTTP (80) | HTTPS (443) | Telnet (23) | SSH (22) | SNMP (161) |
|---|---|---|---|---|---|
| Slot 1 | 8021 | 44321 | 2321 | 2221 | 16121 |
| Slot 2 | 8022 | 44322 | 2322 | 2222 | 16122 |
| Slot 3 | 8023 | 44323 | 2323 | 2223 | 16123 |
| Slot 4 | 8024 | 44324 | 2324 | 2224 | 16124 |
| Slot 5 | 8025 | 44325 | 2325 | 2225 | 16125 |
| Slot 6 | 8026 | 44326 | 2326 | 2226 | 16126 |
| Slot 7 | 8027 | 44327 | 2327 | 2227 | 16127 |
| Slot 8 | 8028 | 44328 | 2328 | 2228 | 16128 |
| Slot 9 | 8029 | 44329 | 2329 | 2229 | 16129 |
| Slot 10 | 8030 | 44330 | 2330 | 2230 | 16130 |
| Slot 11 | 8031 | 44331 | 2331 | 2231 | 16131 |
| Slot 12 | 8032 | 44332 | 2332 | 2232 | 16132 |
| Slot 13 | 8033 | 44333 | 2333 | 2233 | 16133 |
| Slot 14 | 8034 | 44334 | 2334 | 2234 | 16134 |