[NiseSlo2]

is there any vulnerablity to me by giving my ipconfig information to someone on here to help me? it shows my IP address, computer names and groups, etc.

[Frank4d]

It depends on what you mean by vulnerability. The DNS server IP addresses could be reverse looked up to show you are a Comcast customer, but that isn't particularly useful (Comcast has millions of customers).

But if you edit or leave out certain information, we may not be able to help with your problem.

[NiseSlo2]

Originally Posted by Frank4d

It depends on what you mean by vulnerability. The DNS server IP addresses could be reverse looked up to show you are a Comcast customer, but that isn't particularly useful (Comcast has millions of customers).

But if you edit or leave out certain information, we may not be able to help with your problem.

What I mean is, can they access my computer and use my internet connection, giving them free access or could they gain access to anything I have on my computer with me providing the ipconfig information to them?

[Frank4d]

Regarding the ipconfig JohnWill asked you to post in your other thread, no.

It only shows your 192.168.1.102 IP address and the routers 192.168.1.1 own IP address (not your IP address on the Internet). The DNS server IP addresses can only be used to determine the name of your ISP. None of them can be used to gain access to your PC or Internet connection.

[Jason08]

The physical address can show the manufacturer, model number, and even serial number of your NIC.

[JohnWill]

Jason, the make and model number of the NIC is useless information, there is no danger in posting it. Here's mine, I have no issues in posting it, it's useless for hackers.

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : MAIN
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Ethernet adapter VMware Network Adapter VMnet8:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8
Physical Address. . . . . . . . . : 00-50-56-C0-00-08
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.176.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.176.254
Primary WINS Server . . . . . . . : 192.168.176.2
Lease Obtained. . . . . . . . . . : Sunday, April 05, 2009 1:54:33 PM
Lease Expires . . . . . . . . . . : Sunday, April 05, 2009 2:24:33 PM

Ethernet adapter VMware Network Adapter VMnet1:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for
VMnet1
Physical Address. . . . . . . . . : 00-50-56-C0-00-01
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.91.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.91.254
Lease Obtained. . . . . . . . . . : Sunday, April 05, 2009 1:39:43 PM
Lease Expires . . . . . . . . . . : Sunday, April 05, 2009 2:09:43 PM

Ethernet adapter Parallels Host-Guest Virtual NIC:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Parallels Host-Guest Virtual NIC
Physical Address. . . . . . . . . : 00-01-23-45-67-89
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.166.46
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Marvell Yukon 88E8001/8003/8010 PCI
Gigabit Ethernet Controller
Physical Address. . . . . . . . . : 00-17-31-00-90-D6
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.0.5
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
Lease Obtained. . . . . . . . . . : Sunday, April 05, 2009 7:47:09 AM
Lease Expires . . . . . . . . . . : Monday, April 06, 2009 7:47:09 AM

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-1F-81-00-02-00

[Jason08]

Doesn't at least the last of the 6 sets of addresses for the physical address contain the serial number, though? I would think that would be somewhat of a security issue.

[cwwozniak]

Originally Posted by Jason08

I would think that would be somewhat of a security issue.

In what way? How could that information be used to compromise the security of the computer?

FWiW, the MAC Address of a computer can most likely be edited to be anything the user wants it to be.

http://www.irongeek.com/i.php?page=security/changemac