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58
User Manual
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AER3100/AER3150
RIP
RIP (Routing Information Protocol) is a widely deployed interior gateway protocol. RIP is a distance-vector
protocol based on the Bellman-Ford algorithms. As a distance-vector protocol, RIP sends updates from
one router to its neighbors periodically, allowing the convergence to a known topology. In each update, the
distance to any given network will be broadcast to its neighboring router. The router supports RIP version 2 as
described in RFC2453 and RIP version 1 as described in RFC1058.
RIP Editor
•
Name
: Unique name of the policy.
•
Metric
: RIP metric is a value for distance
for the network. Usually RIP increments the
metric when the network information is
received. The metric for redistributed routes
is set to 1.
•
Protocol Version
: RIP can be configured to
send either version 1 or version 2 packets.
The default is to send RIPv2 while accepting
both RIPv1 and RIPv2 (and replying with
packets of the appropriate version for
REQUESTS / triggered updates).
•
Password
: RIPv2 allows packets to be
authenticated via either an insecure plain text
password, included with the packet, or a more
secure MD5 based HMAC (keyed-Hashing for
Message AuthentiCation). RIPv1 cannot be
authenticated at all, so when authentication
is configured RIP will discard routing updates
received via RIPv1 packets.
•
Plain text password
: Select to use a plain text password instead of an MD5 HMAC. WARNING: A plain text
password is insecure.
•
Enabled
: Click to enable/disable the policy. (Default: enabled.)
Networks
: Set the RIP-enabled interfaces by network. RIP is enabled on the interfaces that have addresses
within the network range.
Neighbors
: When a neighbor doesn’t understand multicast, this command is used to specify neighbors. In some
cases, not all routers will be able to understand multicasting, where packets are sent to a network or a group
of addresses. In a situation where a neighbor cannot process multicast packets, it is necessary to establish a
direct link between routers. The neighbor command allows the network administrator to specify a router as a
RIP neighbor. The no neighbor a.b.c.d command will disable the RIP neighbor. Assign a neighbor by inputting an
IP address.
Redistribute Routes
: Redistribute routes of the specified protocol or kind into RIP, with the metric type and
metric set (if specified), filtering the routes using the given route map (if specified). Redistributed routes may
also be filtered with distribute lists.
•
Type
: The type is the source of the route. Select from: Main, Connected, Static, OSPF, BGP.
•
Metric
: Numerical priority of the route.
•
Route Map
: Route maps provide a means to filter and/or apply actions to routes, allowing policies to be
applied to routes.
