160 BigIron RX Series Configuration Guide
53-1002253-01
Basic IP parameters and defaults
7
IP interface parameters
Table 44 lists the interface-level IP parameters for the device, their default values, and where to
find configuration information.
Static route An IP route you place in the IP route table. No entries page 198
Source interface The IP address the router uses as the source address for Telnet,
RADIUS, or TACACS and TACACS+ packets originated by the router.
The router can select the source address based on either of the
following:
• The lowest-numbered IP address on the interface the packet
is sent on.
• The lowest-numbered IP address on a specific interface. The
address is used as the source for all packets of the specified
type regardless of interface the packet is sent on.
The lowest-numbered IP
address on the interface the
packet is sent on.
page 183
TABLE 43 IP global parameters (Continued)
Parameter Description Default See page...
TABLE 44 IP interface parameters
Parameter Description Default See page...
IP state The Internet Protocol, version 4 Enabled
NOTE: You cannot disable
IP.
n/a
IP address A Layer 3 network interface address
The device has separate IP addresses on individual interfaces.
None configured
a
page 161
Encapsulation type The format of the packets in which the router encapsulates IP
datagrams. The encapsulation format can be one of the following:
• Ethernet II
• SNAP
Ethernet II page 179
IP Maximum
Transmission Unit
(MTU)
The maximum length (number of bytes) of an encapsulated IP
datagram the router can forward.
1500 for Ethernet II
encapsulated packets
1492 for SNAP encapsulated
packets
page 181
ARP age Locally overrides the global setting. Refer to Table 43 on
page 157.
Ten minutes page 190
Metric A numeric cost the router adds to RIP routes learned on the
interface. This parameter applies only to RIP routes.
1 (one) page 670
Directed broadcast
forwarding
Locally overrides the global setting. Refer to Table 43 on
page 157.
Disabled page 194
ICMP Router
Discovery Protocol
(IRDP)
Locally overrides the global IRDP settings. Refer to Table 43 on
page 157.
Disabled page 215
ICMP Redirect
messages
Locally overrides the global setting. Refer to Table 43 on
page 157.
Enabled page 198
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