Users Guide

1180 Routing Interfaces
Default Routing Interface Values
By default, no routing interfaces are configured.
When you create a VLAN, no IP address is configured, and DHCP is disabled.
After you configure an IP address on a VLAN or loopback interface, the VLAN
interface is available for Layer-3 routing (if enabled) and is capable of resolved
ARPs and responding to pings, and the interface has the default configuration
shown in Table 32-1.
Most interface configuration parameters are not applicable to loopback
interfaces, so the default values cannot be changed. However, when a
loopback interface is created, the default values are similar to those of VLAN
routing interfaces, as Table 32-1 shows.
When you create a tunnel, it has the default values shown in Table 32-2
Table 32-1. VLAN Routing Interface and Loopback Interface Defaults
Parameter Default Value
Forward Net Directed Broadcasts Disabled
Encapsulation Type Ethernet (N/A for loopbacks)
Proxy Arp Enabled
Local Proxy Arp Disabled
IP MTU 1500
Bandwidth Not configured.
Destination Unreachables Enabled
ICMP Redirects Enabled
Table 32-2. Tunnel Interface Defaults
Parameter Default Value
Tunnel mode 6-in-4 configured
Link Local Only Mode Disabled
Source address None
Destination address 0.0.0.0