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Cisco Systems OL-8241-02 Manual De Usuario

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Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-8241-02
Chapter 1      Configuring Interfaces and Circuits
Configuring Circuits
Configuring Circuit-IP Redirects
By default, the transmission of Internet Control Message Protocol (ICMP) 
redirect messages is enabled. To disable the transmission of ICMP redirect 
messages, enter:
(config-circuit-ip[VLAN7-172.16.6.58])# no redirects
To reenable the transmission of ICMP redirect messages, use the redirects 
command. For example:
(config-circuit-ip[VLAN7-172.16.6.58])# redirects
Configuring Circuit-IP Unreachables
By default, the transmission of ICMP Destination Unreachable is enabled. To 
disable the transmission of ICMP Destination Unreachable messages, enter:
(config-circuit-ip[VLAN7-172.16.6.58])# no unreachables
Use the unreachables command to enable the transmission of ICMP Destination 
Unreachable messages. The default state is enabled.
For example:
(config-circuit-ip[VLAN7-172.16.6.58])# unreachables
Configuring Router-Discovery Preference for a Circuit IP Interface
To enable router discovery and configure the router discovery preference value for 
a circuit IP interface, use the router-discovery command. When enabled, router 
discovery transmits packets with the “all-hosts” multicast address of 244.0.0.1. 
Note
To enable an interface to transmit packets with the limited broadcast multicast 
address of 255.255.255.255, use the router-discovery limited-broadcast 
command in circuit mode (see the 
 section). Router discovery is disabled by default.