Cisco Systems ISA550 Manual De Usuario

Pinging to Test LAN Connectivity

Cisco ISA500 Series Integrated Security Appliances Administration Guide

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The security appliance and most TCP/IP terminal devices contain a ping utility that 
sends an ICMP echo-request packet to the designated device. The device 
responds with an echo reply. Troubleshooting a TCP/IP network is made very easy 
by using the ping utility in your PC or workstation. 

This section includes the following topics: 

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On your PC, click the Windows Start button, and then click Run.

Type ping <IP_address> where <IP_address> is the IP address of the security 
appliance. Example: ping 192.168.75.1.

Click OK.

Observe the display:

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If the path is working, you see this message sequence:
Pinging <IP address> with 32 bytes of data

Reply from <IP address>: bytes=32 time=NN ms TTL=xxx

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If the path is not working, you see this message sequence:
Pinging <IP address> with 32 bytes of data

Request timed out

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If the path is not working, check the physical connections between the PC 
and the security appliance. If the LAN port light is off, verify that the 
corresponding link lights are lit for your network interface card and for any 
hub ports that are connected to your workstation and security appliance.

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If the path is still not up, test the network configuration. 

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Verify that the Ethernet card driver software and TCP/IP software are 
installed and configured on the PC.