Specifications

ip disable
270 SSR Command Line Interface Reference Manual
ip disable
Purpose
Disables IP options on the SSR.
Format
ip disable dns-lookup|fast-icmp|forwarding|
[icmp-redirect interface <name>|all]|[proxy-arp interface <name>|all]|
source-routing
Mode
Configure
Description
The ip disable command allows you to disable features that are enabled by default on the
SSR.
Parameters
dns-lookup
Disables DNS name lookup for all commands. Sometimes a DNS server is too slow to
respond and this can cause a command that displays information about many hosts to
take a long time to finish. Disabling DNS lookup displays all host addresses as IP
addresses instead of host names.
fast-icmp
Disables the fast ICMP feature on the SSR. By default, the SSR installs ICMP flows to
be switched along the fast path in hardware if the ICMP flow is meant to be routed.
ICMP echo requests are installed as control priority for packets destined for the SSR.
When this feature is disabled, all ICMP packets are handled via the slow path in
software.
forwarding
Disables the router’s ability to forward IP packets. No IP packets will be forwarded to
any IP interface if this command is used.