Cisco Systems OL-8241-02 Manual De Usuario

For example:

(config)# ip no-implicit-service

To reset the default setting, enter:

(config)# no ip no-implicit-service

To enable the CSS to process frames with information that overrides the default 
routing, use the ip source-route command. For example:

(config)# ip source-route

Enabling the ip source-route command may pose a major security risk to your 
network. The IP source route specifies information that overrides the default 
routing a packet would normally take. The packet could then bypass a firewall. If 
this poses a problem, avoid using the ip source-route command.

The CSS does not load balance TCP or UDP packets with IP options that are 
destined to a VIP address. These packet types are dropped and the CSS returns an 
ICMP destination/port unreachable error. This behavior exists regardless of the 
state (enabled or disabled) of the ip source-route and ip record-route 
commands.

The CSS, however, does respond to ICMP packets that are destined to a VIP 
address. The CSS also responds to TCP or UDP packets that include IP options 
that are destined to a local circuit address, or require that a routing decision be 
made. 

To disable the processing of frames with the IP source-route option (the default 
behavior), enter:

(config)# no ip source-route