Broadband Ping

bigcheeseburger

bigcheeseburger

bigcheeseburger

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Joined
8 Mar 2003
Posts
317
Location
UK
Hi

Just got a new Dell PC hooked it up to the internet for REALVNC use but i can't connect to the IP Addy.

The computer itself connects to the net without a problem.

When i try to ping the IP address it times out every time. I have no idea if this is a problem with the new PC or a Local line problem.

Not sure what other details you may require, but it's connected directly to the net via a USB speedtouch 330 modem, there are no firewalls or other software that could interfere running.

Any ideas how i could identify / fix the problem with ping?

Ta
 
You have an unfirewalled windows PC connected directly to the internet? :eek:

What machine are you trying to control? Are you trying to control from this new PC, or are you trying to control the new PC.
 
bigcheeseburger said:
Yeah PC not firewalled :)
Click to expand...

:eek: :eek: I guess you don't mind if your PC gets owned? Anyway...

Are you sure you're trying to connect to the right IP address? Are you 100% sure that VNC is setup properly?
 
Burbleflop said:
:eek: :eek: I guess you don't mind if your PC gets owned? Anyway...

Are you sure you're trying to connect to the right IP address? Are you 100% sure that VNC is setup properly?
Click to expand...

Meh, I always put my machine in the DMZ of my router, whichI assume is essentially the same as being directly connected. Not forgetting I don't use a firewall :eek:
 
you might want to open just the required port that VNC uses (might be 5900 or similar) instead of using DMZ, software firewall should allow to open only the one port also. do online port scans show the machine to be exposed?
 
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Before i fix VNC i'd like to resolve the ping issue

I am quite sure if i can ping the PC i'll be able to connect via VNC

not worried right now about firewall as the ip does ping out every time

have a go pinging yourself :)

81.77.198.203

this is indeeed the correct ip (ipconfig and net status tells me so)
 
to be honest i would consider the firewall before anything else, exposed computer on the net is going to end in disaster unless you are very lucky, a port scan should confirm firewall and ping issues, give it a try and see what results you get
 
Use nmap or similar. Any sensible site won't let you direct a scan at an IP that isn't your own.

Edit: For what it's worth:
Starting Nmap 4.03 ( http://www.insecure.org/nmap/ ) at 2006-06-14 11:30 BST
DNS resolution of 1 IPs took 0.05s. Mode: Async [#: 5, OK: 1, NX: 0, DR: 0, SF: 0, TR: 1, CN: 0]
Initiating Connect() Scan against user-1739.l4.c2.dsl.pol.co.uk (81.77.198.203) [1674 ports] at 11:30
Connect() Scan Timing: About 8.96% done; ETC: 11:35 (0:05:05 remaining)
The Connect() Scan took 347.18s to scan 1674 total ports.
Host user-1739.l4.c2.dsl.pol.co.uk (81.77.198.203) appears to be up ... good.
All 1674 scanned ports on user-1739.l4.c2.dsl.pol.co.uk (81.77.198.203) are: filtered

Nmap finished: 1 IP address (1 host up) scanned in 347.254 seconds
Click to expand...

Behind a firewall and you don't know it?
 
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tolien

thank you very much

I don't understand yet where the firewall could be tho :s

there's nothing running that i am aware of, I'll have to get myself infront of the PC and have a good look

for the moment i might instruct someone to go into msconfig and untick all startup items as a test.
 
When you say PC not firewalled, do you mean you havent installed a software firewall, or you've disabled the Windows Firewall (this is on by default)?
 
I've just got someone to disable all items in startup

IP address is still the same yet i still can't ping it.

There's no hardware firewalls near the PC, and no software ones running.

I've yet to confirm windows built in status as the person wasn't too knowledgable

will post back soon

other ideas?
 
Firewall info:

No firewalls software running yet.. it's brand new awaiting my attention :)

When I first had problem yesterday I went to PC and turned windows firewall off and still could not ping it.
 
Lo again

ok so i've now established the following:

No software firewall
No hardware firewall

tbh i'm a bit baffled by this now, but have one more test to make, try a different PC (laptop)

using same modem & tel line

no other ideas why i can't ping? or tests i could do to source issue?
 
I don't suppose the Cisco VPN client is installed on that PC is it? I've seen it happen a few times where that causes this sort of problem.

Failing that, does the ISP do any firewalling for you? I know Nildram and a few others will firewall you if you pay them, but I'm clutching at straws here.
 
sorted :)

Dell in thier wisdom done the usual... installed a load of carp onto PC

bundled within the carp was some firewall / spam services :(

i never thought to look there at first

simple fix in the end tho :)

thanks for all the replies and help

PS PC now firewalled
 
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