I took Netflows off the serail lines on my Cisco routers facing our carriers MPLS network. All but 1 of the sites returned traffic I expected.(protocol list below) The one site had host and protocols not assciated to our network. My thought is the carrier has the MPLS mis-configured and is letting this traffic into out network. Any thoughts on this ?
Seems odd that you would see that on only one site. Can you do a packet capture filtered on the questionable protocols and see what it is?