7-6
MAX Administration Guide
Administering TCP/IP
Managing the Internet Protocol (IP)
255.255.255.255/32 - ie0 CP 0 0 0
20887
In the preceding example, the first route shown is the default route with destination 0.0.0.0/0,
defined through the active Connection profile. The IP Route profile for the default route
specifies a preference of 1, so this route is preferred over dynamically learned routes. The
default route is the route that the unit uses if it does not find a match for a packet’s destination
address. The unit adds dynamically assigned IP addresses to the routing table as individual
host routes.
Use Table 7-3 to find a definition of the setting displayed in each field of the IP routing table:
Table 7-3. IP routing table fields and definitions
Field
Definition
Destination
Target address of a route. To send a packet to this address, the unit
uses this route. The router uses the most specific route (having the
longest mask) that matches a given destination.
Gateway
Address of the next hop router that can forward packets to the given
destination. Direct routes (without a gateway) do not show a gate-
way address in the gateway column.
IF
Name of the interface through which a packet addressed to this des-
tination is sent.
•
ie0
—Ethernet interface
•
lo0
— Loopback interface
•
wanN
—Each of the active WAN interfaces
•
wanidle0
— Inactive interface (the special interface for any
route whose WAN connection is down).
Flg
Flag values, including the following:
•
C
— A directly connected route, such as Ethernet
•
I
— Internet Control Message Protocol (ICMP) Redirect
dynamic route
•
N
—Placed in the table via SNMP MIB II
•
O
—Route learned from OSPF (Open Shortest Path First)
•
R
—Route learned from RIP
•
r
—RADIUS route
•
S
—Static route
•
?
—Route of unknown origin, which indicates an error
•
G
—Indirect route via a gateway
•
P
—Private route
•
T
—Temporary route
•
*
—Hidden route that will not be used unless another better
route to the same destination goes down