what is 255.255.255.0? my firewall is asking for access to this ip?

Question

i use a wireless connection

Answer 1

this is the subnet mask no....mine also same
The subnet mask is used to determine where the network number in an IP address ends and the node number in an IP address begins. A node is anything on a network that needs an IP address to communicate (a PC, server, router, etc).
for more details google it
subnet: A segment of a larger network.

subnet mask: A bit mask that separates the portions of an IP address significant to the network from the bits significant to the subnet. For a class C address, a standard subnet mask is 255.255.255.0, which masks the first three bytes of the address, and leaves the last byte available to identify machines on the subnet.
so u should allow that....
visit here
http://www.pantz.org/networking/tcpip/subnetchart.shtml


i'm giving u more details
Using DHCP with Internet Connection Sharing TCP/IP requires that each computer on a network have a unique number called an IP address. If you have two network adapters on your computer, each must have a different IP address. For example, when you connect to the Internet, your DSL or cable modem will have a different IP address than the network adapter connected to your home or small office network.

IP numbers are hierarchical. A number called a subnet mask is used with the IP address to enable the segmentation of a large network into smaller networks. It is important for you to remember the specific set of numbers used in your home network.

There are groups of IP addresses specifically reserved for small networks. One of these groups is used by residential gateways and by Internet Connection Sharing (ICS) - 192.168.0.x where x represents a number between 0 and 255.

These numbers are used with a subnet mask of 255.255.255.0. This particular subnet mask is known as a Class C subnet.

Understanding the IP addressing scheme and using it appropriately can be difficult. Residential gateways and Internet Connection Sharing (ICS) automate the IP numbering task for the ICS client computers on your network by using the Dynamic Host Configuration Protocol (DHCP) service. The DHCP service enables the residential gateway or the ICS host computer to assign IP addresses to client computers automatically. By default, when a residential gateway or ICS is installed, the DHCP service begins supplying addresses to computers on the network.

Your Internet service provider (ISP) might use a DHCP service to assign your computer an IP address when you connect to the Internet. This is commonly referred to as a dynamic IP address. Each time your computer connects to the Internet, a different but unique number might be assigned to it.

When you install ICS, assuming that you have two adapters in the computer—one for the device connecting you to the Internet and another for connecting to your home or small office network - an IP address of 192.168.0.1 is assigned to the network adapter connected to your home network. This is assigned permanently and is referred to as a static IP address because it does not change. Next, the DHCP service is loaded into memory so that IP addresses can be assigned to computers on the network.

Each client computer must request an address. It is important that the ICS host computer remain on all the time or be started prior to starting the other computers on your network. Otherwise, the client computers will be unable to obtain an IP address.

Answer 2

This probably isnt going to answer your question, but:

255.255.255.0
Record Type: IP Address

OrgName: Internet Assigned Numbers Authority
OrgID: IANA
Address: 4676 Admiralty Way, Suite 330
City: Marina del Rey
StateProv: CA
PostalCode: 90292-6695
Country: US

NetRange: 240.0.0.0 - 255.255.255.255
CIDR: 240.0.0.0/4
NetName: RESERVED-240
NetHandle: NET-240-0-0-0-0
Parent:
NetType: IANA Special Use
Comment: Please see RFC 3330 for additional information.
RegDate:
Updated: 2002-10-14

OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: Internet Corporation for Assigned Names and Number
OrgAbusePhone: [phone]
OrgAbuseEmail: [e-mail]

OrgTechHandle: IANA-IP-ARIN
OrgTechName: Internet Corporation for Assigned Names and Number
OrgTechPhone: [phone]
OrgTechEmail: [e-mail]

Answer 3

That is the subnet mask of a Class C address. I am not sure why your firewall would be asking for access to it. It seems something is configured wrong

Answer 4

It looks like a subnet mask. Mine is 255.255.0.0. Do you have some kind of a router? If so, it's probably safe to assume it's okay to allow access.

Answer 5

That's just a subnet mask of the network.

Answer 6

Could that be your own ip

http://www.whatsmyip.org/