gu.csiro.au is a domain controlled by three nameservers at csiro.au. All of them are on different IP networks. csiro.au, ivec.org, gcte.org, csiro.org, csiro.co.uk and at least 36 other hosts share nameservers with this domain. cerberus-gu.gu.csiro.au are subdomains to this hostname. csiro.au is a domain controlled by seven nameservers. Some of them are on the same IP network. Incoming mail for csiro.au is handled by two mailservers also at csiro.au. They are on different IP networks. csiro.au has one IP number.