About scopes and IP addresses

Scopes are logical groupings of IP addresses associated with a specific subnet mask. IP addresses are allocated from scopes when IP-based sites are created. Scopes and IP addresses are not used when name-based sites are created.

If a site that uses an IP address is removed, the IP address is placed at the end of the scope's available IP address list; it would be the last IP address in the scope to be assigned.

For additional information about scopes and IP addresses for IP-based sites, see:

- Adding scopes

- Adding IP addresses

- Viewing scopes

- Viewing IP addresses

- Reserving IP addresses

- Unreserving IP addresses

- Removing IP addresses

- Removing scopes

# About IP addresses for name-based sites

When you create a name-based site, an IP address is assigned to that site from the name-based IP address list in your system. For information about IP addresses used for name-based sites, see:

- IP addresses for name-based sites

- Adding IP addresses for name-based sites

- Removing IP addresses from the name-based list