duplicate mac addresses requesting dhcp server
Gilbert Coles
gilbertx07 at hotmail.com
Wed Oct 18 07:39:06 UTC 2006
Hi,
I've got a query regarding duplicate MAC addresses requesting an IP address
from dhcpd.
Consider a scenario where pc1 has mac1 and asks the dhcp server for a lease
for ip1. The dhcp
server is dynamically allocating IPs from a pool and so it assigns the lease
for ip1. If another pc2
comes along with its MAC address spoofed to mac1 and asks the dhcp server
for an ip (not
necessarily ip1) will the server assign a lease to pc2?
Now if the dhcp server is configured to reserve a fixed-address ip1 to mac1
and pc1 comes along
and is given its ip, will pc2, with its mac spoofed to mac1 be given the
fixed-address ip1?
So my question is: does the dhcp server contain logic to check the leases
file entry assigned to
mac1 before actually serving another request coming from apparently the same
mac1?
G
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