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got this email from the IT director today...what a moron

N

Need4Speed

Diamond Member
"Hi all,

We need to identify the use of following IPs. Please let me know if you know anything on these.

200.200.200.217
200.200.200.255

I will be scanning the system for unidentified IPs frequently in the interest of security and proper documentation of all uses of the network. Your cooperation is appreciated.

Thanks."

You'll have to overlook the fact that they use routable addresses on the private network.... :disgust:

mmmmm...I'm not sure who is using the .255 address...let me look
 
That is a very valid concern.

What is wrong with that e-mail?

Those IPs could be infected and doing bad stuff.
 
Originally posted by: spidey07
That is a very valid concern.

What is wrong with that e-mail?

Those IPs could be infected and doing bad stuff.
Click to expand...

Isn't a 255 address the broadcast address?
 
Originally posted by: spidey07
That is a very valid concern.

What is wrong with that e-mail?

Those IPs could be infected and doing bad stuff.
Click to expand...


255 is broadcast address...no pc has that address assigned to it.
 
Originally posted by: Need4Speed
Originally posted by: spidey07
That is a very valid concern.

What is wrong with that e-mail?

Those IPs could be infected and doing bad stuff.
Click to expand...


255 is broadcast address...no pc has that address assigned to it.
Click to expand...

not necessarily.

/23 or less in mask length means it isn't a broadcast.

so it just depends on the mask.
 
I was pretty sure broadcast was the answer but thanks for explaining it to the rest of us, and not being a prick about it.
 
I remember the time our security officer shutdown our proxy server because he though it was infected with a virus and was DOS attacking the corporate webserver. When asked how he reached this conclusion, he said the webserver had an unusually large amount of traffic coming from the IP (uhhhhh, all internal web traffic would go thru the proxy to get to the website...hellloooo????).
We've all got our "DUH" moment in IT.
 
well that shows how much your IT director payed attention during his Cisco classes. 255 is a broadcast address and he should be able to look in the DHCP control panel in the router to know who has the 217 ip.
 
an IT director doesnt have to be that technical, he just has to manage his team of very technical and underpaid people. get your facts straight.
 
I can figure out within 30 seconds which computer is leased which IP address by looking at the DHCP lease table.
 
Originally posted by: EKKC
an IT director doesnt have to be that technical, he just has to manage his team of very technical and underpaid people. get your facts straight.
Click to expand...

while I mostly agree with that, he should at least have basic networking skills so to effectively communicate with staff and users. Furthermore, if he does not have the tech skills then he should not be sending out emails such as that.

as for 217, it didn't even take that long to figure out...a quick nbtstat was all that was needed to realize it was the field service tech's laptop
 
Originally posted by: ForumMaster
well that shows how much your IT director payed attention during his Cisco classes. 255 is a broadcast address and he should be able to look in the DHCP control panel in the router to know who has the 217 ip.
Click to expand...

Most CIO's / IT Directors that I've met are generally not well versed in networking.
 
Originally posted by: spidey07
Originally posted by: Need4Speed
Originally posted by: spidey07
That is a very valid concern.

What is wrong with that e-mail?

Those IPs could be infected and doing bad stuff.
Click to expand...


255 is broadcast address...no pc has that address assigned to it.
Click to expand...

not necessarily.

/23 or less in mask length means it isn't a broadcast.

so it just depends on the mask.
Click to expand...


How does the mask lenght being less than 23 make .255 anything but a broadcast address?

A smaller mask will only make the .255 a broadcast address for a smaller network, but it is still a broadcast adress nonetheless...
 
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