1
vote
3answers
182 views

Detecting(and locating) rogue DHCP server on a local area network

How would we detect and locate a rogue DHCP server on our local area network?
10
votes
3answers
1k views

Is a predictable MAC address a risk?

If you knew from the public internet that a certain IP address belonged to a machine with a certain MAC address, can you see any security exposure associated with that? I know that some software will ...
4
votes
4answers
7k views

What are the laws regarding ISP recording IP addresses? How would they know who had which?

Since most internet users have ISPs using dynamic IP addresses (e.g. someone gets a new external IP address every few days) are there any laws requiring the ISPs to keep logs associating an IP address ...
7
votes
6answers
1k views

How can I restrict access to network data by an unauthorized computer that connects via Ethernet?

I assume I can configure most routers to only assign IP addresses to specific MAC addresses, as is possible with wireless routers. However what if a computer is connected via Ethernet and does not ...
2
votes
5answers
8k views

Setting DHCP lease time to very small time increases security?

Yes or No? :O And why?
14
votes
5answers
15k views

DHCP vs. Static IP Addressing

How do DHCP and Static IP addressing compare, from a security standpoint? What are the risks/benefits associated with each? I know the preferred solution between the two will vary with network size ...