Difference between revisions of "How to calculate the MS NLB multicast mac address from a unicast IP address"
From Tech-Wiki
| Line 1: | Line 1: | ||
[[Category:Microsoft]] | [[Category:Microsoft]] | ||
| + | '''[[Microsoft#Misc|Back to Misc]]''' | ||
| + | |||
| + | |||
If using Microsoft Network Load Balacning (NLB) set-up in multicast mode you can calculate the multicast mac address from the unicast NLP cluser IP address as follows: | If using Microsoft Network Load Balacning (NLB) set-up in multicast mode you can calculate the multicast mac address from the unicast NLP cluser IP address as follows: | ||
Revision as of 10:19, 24 August 2016
If using Microsoft Network Load Balacning (NLB) set-up in multicast mode you can calculate the multicast mac address from the unicast NLP cluser IP address as follows:
Convert each octet of the unicast IP to Hexadecimal, the multicast mac is 03-bf-WW-XX-YY-ZZ. e.g. IP 199.99.20.70 Convert to Hex:
| Decimal | Hex |
|---|---|
| 199 | c7 |
| 99 | 63 |
| 20 | 14 |
| 70 | 46 |
The multicast mac address would then be:
03-bf-c7-63-14-46