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Document No. 650-100-700, Issue 1 12-17
Configuring IP Routing
To configure short-lived protocol filters, your user account must be assigned
one of the following access types:
■
Read-write
■
Administrator
■
Custom access type that has read-write permission for the routing
feature
You can configure short-lived IP protocol filters only by using the CLI. This
feature is not available in the Web Agent or SNMP.
Enabling a Short-Lived IP Protocol Filter
Overview
If you enable a filter for a short-lived IP protocol, the switch uses the slow
path to route packets of the protocol. For information about the slow path,
see “
Routing Overview ” in Chapter 1 , “ Introduction .”
By default a filter is enabled for DNS and NTP packets. To route the
packets of other short-lived protocols by means of the slow path, you must
enable a filter for the protocol.
CLI Command
To enable a filter for a short-lived IP protocol, enter Global Configuration
mode and use the following command:
ip short-lived {tcp | udp} <port>
Table 12-3. Keywords, Arguments, and Options
Keyword, Argument, or
Option Definition
{tcp | udp} Enter tcp if the protocol that you want to filter
uses a TCP port.
Enter udp if the protocol that you want to
filter uses a UDP port.
<port> The TCP or UDP port number that the
protocol uses. Enter a port number from 0
through 65535.