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Duplicate IP address

I have encountered an error message in the router 7000.

" %IP-4-DUPADDR: Duplicate address 10.1.1.80 on Fddi1/0, sourced by 0090.c4b2.fe3b"

Does that mean the this MAC 0090.c4b2.fe3b sensed that there is duplication IP address of 10.1.1.80 in the network?

Or the router's Fddi interface sensed that there is a duplication address with the MAC 0090.c4b2.fe3b?

I changed the MAC's IP address and the error still exists.

Janet Eng

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