problem with Pinging from solaries server

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tmanohar28@gmail.com - 24 Apr 2008 18:45 GMT

Hi,

i am trying to execute below code from solaries platfrom

InetAddress addy = InetAddress.getByName(ipaddress);
try {
pStatus = InetAddress.isReachable(5000);
} catch (IOException e) {
mLog.error(e.getMessage());
}

i am trying to ping to the apddress but it is giving false even though
the machine(windows platform) is up

thanks in advance

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RedGrittyBrick - 25 Apr 2008 09:46 GMT

> Hi,
>
> i am trying to execute below code from solaries platfrom

Solaris?

> InetAddress addy = InetAddress.getByName(ipaddress);
> try {
[quoted text clipped - 5 lines]
> i am trying to ping to the apddress but it is giving false even though
> the machine(windows platform) is up

The API docs say:

"Test whether that address is reachable. Best effort is made by the
implementation to try to reach the host, but firewalls and server
configuration may block requests resulting in a unreachable status while
some specific ports may be accessible. A typical implementation will use
ICMP ECHO REQUESTs if the privilege can be obtained, otherwise it will
try to establish a TCP connection on port 7 (Echo) of the destination host."

I conclude that at least one of the following is true:

* Your "ipaddress" doesn't contain what you think it does.
* Your "false" result wasn't generated by the quoted code.
* Your target computer is behind a firewall
* Your target computer has internal firewalling enabled.
* Your target computer is not listening on port 7.

I'd check all the above, if still baffled I'd then post an SSCCE (see
http://sscce.org/)