Unusual IP addy ~ Any Ideas?

Hi,

Just having a browse thru my FW logs and came across this IP trying to connect from 137 to me on 137.

4.33.1.98

Any ideas?

This is info I got:
01/27/03 14:30:58 IP block 4.33.1.98
Trying 4.33.1.98 at ARIN
Trying 4.33.1 at ARIN
Genuity GNTY-4-0 (NET-4-0-0-0-1)
4.0.0.0 - 4.255.255.255
GTE Intelligent Network Services GTEINS-33-0-25 (NET-4-33-0-0-1)
4.33.0.0 - 4.33.15.255

# ARIN Whois database, last updated 2003-01-26 20:00
# Enter ? for additional hints on searching ARIN's Whois database.

Not worried, just curious.

 

Hi Tassie_Devils

Curious about anything in particular? Some additional info on the IP:

nslookup 4.33.1.98
Canonical name: tamqfl1-ar5-4-33-001-098.tamqfl1.dsl-verizon.net
Addresses:
4.33.1.98

Regards,
CrazyM

 

Hi CrazyM

No, not really, just the fact of the addy's numbers.

I have never seen an addy with those types of numbers before, so low, etc.

Now I may not get around as much as a lot of you guys, so therefore it was unusual in that sense for me.

Thanks for reply.

 

Unusual, somewhat. Initially this is a so called class A network address.
Historically there are only a few of these around and only a few company's own such an address range (IBM being one of them, of course).
As far as I can recall, there are 128 class A networks. As you will know an IP address is 32 bits long. Class A networks use an netid of 7 bits, resulting in 128 networks. Such a network may host more than 16 million hosts (24 bits left of the 32). Class B uses a 14 bit net id, each with 64K hosts, Class C has a 21 bit netid, with 256 host addresses.

But given the scarcity of ip addresses and networks I suppose many of these A- and B- class networks have been split up (someone to clear this up? )

If you use the 10.*.*.* address range on your private lan, you can have as much as 16 million computers on your network

 

HI meneer.

Thanks for that enlightening piece of info.

Thanks. TAS