Showing UDP forward information

Show UDP forward information to view information about the UDP forwarding characteristics of the device. UDP forwarding only supports 128 entries.

About this task

There are four show options:

Show the interface information
Show the port forward information
Show the port forward list information
Show the protocol information

Procedure

Enter Privileged EXEC mode:

enable
Display information about the UDP interface for all IP addresses or a specified IP address:

show ip forward-protocol udp interface [<A.B.C.D>] [vrf WORD<0-16>] [vrfids WORD<0-512>]
Display the UDP port forwarding table:

show ip forward-protocol udp portfwd [vrf WORD<0-16>] [vrfids WORD<0-512>]
Display the UDP port forwarding list table for the specified list or all lists on the device:

show ip forward-protocol udp portfwdlist [vrf WORD<0-16>] [vrfids WORD<0-512>]
Display the UDP protocol table with the UDP port numbers for each supported or designated protocol:

show ip forward-protocol udp [vrf WORD<0-16>] [vrfids WORD<0-512>]

Example

Display the UDP protocol table with the UDP port numbers for each supported or designated protocol:

Switch:1>enable
Switch:1#show ip forward-protocol udp

================================================================================
                        Udp Protocol Tbl - GlobalRouter
================================================================================
UDP_PORT PROTOCOL_NAME
--------------------------------------------------------------------------------
37       Time Service
49       TACACS Service
53       DNS
69       TFTP
137      NetBIOS NameSrv
138      NetBIOS DataSrv

Variable definitions

Use the data in the following table to use the show ip forward-protocol udp interface command.

Table 1. Variable definitions
Variable	Value
`<A.B.C.D>`	Specifies the IP address for the interface in a.b.c.d format.
vrf `WORD<0–16>`	Specifies the name of the VRF.
vrfids `WORD<0–512>`	Specifies the ID of the VRF and is an integer in the range of 0 to 512.