If you have DHCP configured, then your subnet mask is easily obtainable from
the client PC - you'd have to check the DHCP server (or router) and see what
the subnet mask is set to. Unless you have manually changed the TCP/IP
settings, you're probably setup for DHCP...
If you are still experincing issues - you may want to try un-binding the VPN
(or other) software from the network card. Do this by simply unchecking the
VPN componnet in the Properties of the network card - and then click close.
This way, you don't have to uninstall any software just for testing
purposes. To make things really simple (and eliminate any VPN potential
issues), uncheck everything from the network card except the following three
components: 1) Client for Microsoft networks, 2) File and Priner Sharing and
3) Internet protocol TCPIP. (Actually, you can even uncheck File and
Pritner sharing just to test with.).
Uncheck these components on each PC and see of you can 'ping' across to the
other. Cheers!
" wrote in
message ...
So when I ran 'arp -g' I only got one entry - I think its my router's
local
address - regardless, none of the IP's (wired or wireless) for the other
machines (I tried from both) were listed.
Being a novice at this I'll ask stupid question - how do I check my
sub-net
mask?(where do I look and what am I looking for?)
Before you respond, you may want to check my other post at the end of the
other thread...
Thanks for your help thus far!
Charles
"WhiteZin2000" wrote:
Pings don't use a port. The ICMP protocol is a network-layer protocol
(not a
transport-layer protocol). So a port exception will no affect their
success/failure.
While you're at the command prompt for either PC and type in 'arp -g'.
See
if either PC shows the Physical Address of the other system. If not,
ensure
your subnet mask are correct and (as Mr. Knox points out) check out some
type of firewall setting.
"Doug Knox MS-MVP" wrote in message
...
ICMP Echo is the same as a Ping. Port 445 should be the port that ping's
come in on.
--
Doug Knox, MS-MVP Windows Media Center\Windows Powered Smart
Display\Security
Win 95/98/Me/XP Tweaks and Fixes
http://www.dougknox.com
--------------------------------
Per user Group Policy Restrictions for XP Home and XP Pro
http://www.dougknox.com/xp/utils/xp_securityconsole.htm
--------------------------------
Please reply only to the newsgroup so all may benefit.
Unsolicited e-mail is not answered.
" wrote in
message ...
Oops, I see that in your message now...
Ok, on both PC's I've got the option "Allow incoming echo request"
checked
but nothing else. I don't see anything about "Ping".
Is there some port that I need to enable (and how)?
"Doug Knox MS-MVP" wrote:
ICMP packet exceptions are on the Advanced tab, ICMP section, not the
Exceptions tab.
--
Doug Knox, MS-MVP Windows Media Center\Windows Powered Smart
Display\Security
Win 95/98/Me/XP Tweaks and Fixes
http://www.dougknox.com
--------------------------------
Per user Group Policy Restrictions for XP Home and XP Pro
http://www.dougknox.com/xp/utils/xp_securityconsole.htm
--------------------------------
Please reply only to the newsgroup so all may benefit.
Unsolicited e-mail is not answered.
" wrote
in
message ...
Thanls for the quick reply!
On the "Windows Firewall" dialog's general tab, both the on and off
radio
buttons are greyed out - and there's a message at the bottom stating
that the
"Windows Firewall is using your domain settings"... (I'm logged in
on
the
domain account - the firewall has this same setting when I login to
the
local
machine)
Regardless, under the exceptions tab, I have no program or service
named
like "ICMP Ping/echo packets" - how do I add this exception to the
list
(clicking add programs reveals no program like "*ICMP*")? Further,
how
will I
know whick port(s) to open up without creating a security risk for
myself?
"Doug Knox MS-MVP" wrote:
Is the Windows firewall enabled? If so, check the firewall
exceptions
to ensure that ICMP Ping/echo packets are allowed. This setting and
other ICMP settings are found on the Advanced tab, ICMP, Settings.
--
Doug Knox, MS-MVP Windows Media Center\Windows Powered Smart
Display\Security
Win 95/98/Me/XP Tweaks and Fixes
http://www.dougknox.com
--------------------------------
Per user Group Policy Restrictions for XP Home and XP Pro
http://www.dougknox.com/xp/utils/xp_securityconsole.htm
--------------------------------
Please reply only to the newsgroup so all may benefit.
Unsolicited e-mail is not answered.
"
wrote
in message
...
I am having trouble getting a connection (ping, with eventual
desire
to map a
drive) between two machines on XP SP2 - before upgrading to XP
SP2 I
did not
have this problem.
Here's my set up...
Two laptops with XP SP2, connected via a router. When logging
into
the
"local machine" on both laptops, neither machine can PING the
other.
Same
story when I login to both machines on the same domain... what
gives.
I know the IP addresses of both machines, subnet mask and such -
but
I can't
reach one machine from the other... I need help - can someone
throw
me a bone?