|This object determines the mode the IP protocol layer
operates in. When in multipleNet mode, the system will
accept different network addresses for each of its
interfaces. Routing may be disabled (via ipForwarding),
but the system will still be in routing mode, i.e., it
will keep all of its assigned addresses and it may
still participate in routing update protocols (if
configured). When in singleNet mode, the IP address
assigned to interfaces 1 is applied to all interfaces.
ipForwarding can only be disabled, and all RIP parameters,
other than those related to listening, will be ignored.
Note, when the value of this object is changed, the new
IP address must also be set in the same PDU. This is
required to ensure connectivity remains.
When this object transitions from multipleNet mode to singleNet
1) ipForwarding is automatically set to not-forwarding,
2) all RIP-IP parameters will be ignored except those
related to listening on interface 1. These parameters
will be applied to all interfaces.
3) an IP address must be configured, in the same request,
for interface 1.
the agent removes all other IP addresses, and the
IP address assigned to interface 1 will apply to
When this object transitions back to multipleNet mode,
1) an IP address must be assigned, in the same request,
to one of the ports,
that IP address will apply only to that port
to which it is assigned.
The IP address for interface 1 will no longer apply
to all interfaces.
2) ipForwarding will stay at not-forwarding, and
3) all previously ignored RIP-IP parameters will take
effect. In order to actively route packets,
ipForwarding will need to be set to forwarding.
During this transition, there is the danger that no IP address
will have been configured for the interface that receives the
SNMP requests, in which case, the device will no longer be
manageable. For this reason, it is suggested that the IP
addresses for the interface that receives the SNMP requests
be set in the same PDU that sets this object.