Carrier Access Network Device Axxius 800 - Manual (Page 230)

5-130 Axxius 800 - Release 2.2
CLI Commands
set
There are numerous cases of IP address assignments for the proxy and each
case causes slightly different behavior:
Proxy address is in the same subnet as the Controller LAN address. If the
Controller Ethernet IP address and the proxy IP address are in the same subnet, either
since both addresses are the same or they fall into the same subnet based on address
and mask, the Controller will attempt to use the Ethernet interface to send packets to
other hosts in that subnet. Once an external host has sent a packet to the Controller that
arrives on the proxy interface, the Controller will then use the proxy interface for all
communication to that host.
Proxy address is in a different subnet than the Controller LAN address. If the
Controller Ethernet IP address and the proxy IP address are in different subnets based
on address and mask, then the Controller will use either the Ethernet interface or proxy
interface to send packets to other hosts, based on which subnet the host is in or, which
subnet the IP gateway is on.
Proxy address is equal to one of the Router’s numbered IP addresses. If the
Controller proxy IP address is equal to one of the Router’s own numbered IP addresses
or equal to one of the Router’s static NAT addresses that maps to one of the Router’s
numbered IP addresses, then the Controller and Router will appear to be a single IP
host to devices on any of the Router’s interfaces.
This is a very useful mode that will make the Controller and Router appear to be a
single IP device. When working in this mode, all management traffic directed to the
Router will be forwarded internally to the Controller instead. This includes Telnet,
SNMP, Adit-Navigator socket applications. When configured this way, an external
host Telnet to the Router will go to the Controller login prompt and CLI.
If the proxy interface is to be the primary IP interface between the Controller and other
hosts, then it is highly recommended that the IP gateway be set to the same address as the
proxy address. This will make the proxy interface the default route for IP datagrams.
It is highly recommended for optimum connectability, that the Controller’s proxy IP
address be a unique host address in one of the Router subnets or be equal to one of the
Router IP addresses if the user wishes to have both devices share a single IP address, and
that the IP gateway address be set to equal the proxy address.