With DNS forwarding, it is possible to set up multiple forwarding definitions (especially general wildcard definitions with "*") that are independent of one another by marking them with unique routing tags. Depending on the routing context of the requesting client, the router considers only those forwarding entries that are correspondingly tagged and any general entries that are marked with "0".
From LCOS version 10.20, each destination for DNS forwarding can be given a specific loopback address.
Loopback addresses
LANconfig allows loopback addresses to be specified for every remote site under . Consequently, there is an adjustable sender address for DNS forwarding. Each loopback address consists of exactly one remote site and loopback address. Since only one remote site can be entered per loopback address, two entries are required here if the DNS Destinations have been configured with two remote sites for one domain.
- Destination
- The remote site for a loopback address. This is either an interface name or an IPv6 address. A routing tag can be added after an "@". The remote site must also be in the DNS Destinations table.
- Source address
- The loopback address for a specific remote site. This is either an interface name, an IPv6 address or a known loopback address.
