Ping Responses; Summary - Cisco ME 3400 Software Configuration Manual

Using Ping
With this configuration, a host with an IP address of 192.168.1.2 can be pinged from the switch.
IP Routing and Routed Port
You can use this configuration to enable IP routing, change a switchport to a routed port, and permit
pings from the switch to a connected host:
switch# configure terminal
switch(config)# int fa0/1
switch(config-if)# no switchport
switch(config-if)# ip address 192.168.1.1 255.255.255.0
switch(config-if)# no shutdown
switch(config-if)# exit
switch(config)# ip routing
switch(config)# end
switch# ping 192.168.1.2

Ping Responses

This response is typical of a successful ping to a host:
Switch# ping 72.20.52.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 172.20.52.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
Switch#
An unsuccessful ping results in this message:
Switch# ping 72.20.52.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echoes to 172.20.52.3, timeout is 2 seconds:
. . . . .
Success rate is 0 percent (0/5)

Summary

Keep these guidelines in mind while pinging:
•
•
•
If your switch is running the metro IP access image, use one of these methods to ping a host connected
to a UNI or ENI:
•
•
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
44-12
IP routing is available only with the metro IP access image and is disabled by default.
To ping a host in a different IP subnetwork from the switch, you must have IP routing configured to
route between the subnets, and a static route to the destination might also be appropriate. If you need
to enable or configure IP routing, see
All software versions can use a Layer 3 service policy to permit pings to and from a host connected
to a UNI or ENI. For more information about policy maps, see the
section on page 33-4.
Use a Layer 3 service policy to permit pings to and from a host connected to a UNI or ENI.
Enable global IP routing and configure a port as a routed port by using the no switchport interface
configuration command.
Chapter 35, "Configuring IP Unicast Routing."
Chapter 44 Troubleshooting
"Input and Output Policies"
OL-9639-07