Connected: An Internet Encyclopedia
10.2.1 Minimum Router Configuration
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10.2 Router Initialization
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10.2.1 Minimum Router Configuration
10.2.1 Minimum Router Configuration
There exists a minimum set of conditions that must be satisfied
before a router may forward packets. A router MUST NOT enable
forwarding on any physical interface unless either:
- The router knows the IP address and associated subnet mask or
network prefix length of at least one logical interface
associated with that physical interface, or
- The router knows that the interface is an unnumbered interface
and knows its router-id.
These parameters MUST be explicitly configured:
- A router MUST NOT use factory-configured default values for its IP
addresses, prefix lengths, or router-id, and
- A router MUST NOT assume that an unconfigured interface is an
unnumbered interface.
- DISCUSSION
-
There have been instances in which routers have been shipped with
vendor-installed default addresses for interfaces. In a few
cases, this has resulted in routers advertising these default
addresses into active networks.
Next: 10.2.2 Address and Prefix Initialization
Connected: An Internet Encyclopedia
10.2.1 Minimum Router Configuration