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Gemini G3 - User Manual
65
5.4 Troubleshooting Tools
5.4.1 Network Connectivity
•
PING (DOS/WINDOWS)
The
ping
command determines whether a specific IP address is accessible. It works by send-
ing a packet to the specified address and waiting for a reply. It is useful for troubleshooting
“end-to-end” reachability, network connectivity, and network latency.
Available for MS-Windows 9x, ME, NT, 2000, and XP as well as Unix & Free BSD.
EXAMPLE:
ping 192.168.204.1
displays the response with turn around time in milliseconds.
•
TRACERT (WINDOWS)
The
tracert
command is used to visually see a network packet being sent and received and
the number of hops required for that packet to get to its destination.
Available for MS-DOS 6.2, MS-Windows 9x, ME, NT, 2000, and XP.
Note:
Users with MS-Windows 2000 or XP who need additional information on network la-
tency and network loss may also use the
pathping
command.
EXAMPLE
tracert www.yahoo.com
at the command prompt displays the intermediate routers be-
tween local host to the www.yahoo.com site.
5.4.2 Configuration Information
•
WINIPCFG (WIN95/98), IPCONFIG (WIN2K) or IFCONFIG (UNIX)
Ipconfig
is a DOS utility, which can be used from MS-DOS or a MS-DOS shell to display
the network settings currently assigned and given by a network. This command can be util-
ized to verify a network connection as well as to verify network settings.
Available for MS-DOS, MS-Windows 9x, ME, NT, 2000, and XP.
EXAMPLE
ipconfig /all
at the command prompt displays the Ethernet MAC address, IP address,
IP netmask, default IP gateway, DNS server… information.
•
ARP
View and update the system ARP table
The Address Resolution Protocol (ARP) is used with the IP protocol for mapping a 32-bit
Internet Protocol address to a MAC address that is recognized in the local network specified
in RFC 826. Once recognized the server or networking device returns a response containing
the required address.
Available for MS-Windows 9x, ME, NT, 2000, and XP.
EXAMPLE
arp -a
displays all entries in the ARP cache.
Useful in manipulating ARP caches.
•
ROUTE
View and update the system routing table