iDRAC and interface IP address planning
The Chassis Management Controller (CMC) must be assigned an IP address so that you can communicate with the chassis. This gives you web-based access to the CMC, as shown in this section.
You may need to reserve as many as 67 IP addresses for communication with a single X10G chassis and all of its blade servers.
Many sites use a pattern similar to this:
xxx.xxx.xxx.100 for the IP address of the CMC; xxx.xxx.xxx.101 for the Integrated DELL Remote Access console (iDRAC)
for the blade in slot 1; xxx.xxx.xxx.102 for the iDRAC of the blade in slot 2; and so on. After the CMC has an IP address assigned, you use a web interface to assign iDRAC IP
addresses to all 16 slots as a range. All slots (even empty ones) will have an iDRAC address.
| Chassis location | IP address example |
|---|---|
| CMC | xxx.xxx.xxx.100 |
| Slot 1 Integrated Dell Remote Access Console (iDRAC) | xxx.xxx.xxx.101 |
| Slot 2 iDRAC | xxx.xxx.xxx.102 |
| Slot 3 iDRAC | xxx.xxx.xxx.103 |
| Slot 4 iDRAC | xxx.xxx.xxx.104 |
| Slot 5 iDRAC | xxx.xxx.xxx.105 |
| Slots 6 through 15 | consecutive IP addresses |
| Slot 16 iDRAC | xxx.xxx.xxx.116 |
Plan to have a sequential range of IP addresses reserved for the interfaces you plan to use on every blade server (such as C (eth0), P1 (eth1), and optionally P2 (eth2)).
Here is an example for a fully provisioned X10G:
- IP address of CMC might be:
10.8.0.100 - IP address range (remote access) for 16 blade iDRACs:
10.8.0.101-10.8.0.116 - Subnet mask:
255.255.0.0 - Gateway IP address:
10.8.0.1 - The C (eth0) interfaces on the 16 blades might use this IP address range:
10.8.10.201through10.8.10.216 - The P1 (eth0) interfaces on the 16 blades might use this IP address range:
10.9.10.201through10.9.10.216 - The optional P2 (eth1) interfaces on the 16 blades might use IP address range:
10.14.0.101through10.14.0.116 - The IP address of on-chassis switch A1 might be:
10.15.0.121 - The IP address of on-chassis switch A2 might be:
10.15.0.122