I using 450g nas router. i can connect net with 450g 2nd port through broadband service. but he is use another network ip address is 10.10.5.1 series and i connect the same ip address. he is disconnect the another network and connect the my network dns ip address not change. the problem is DNS ip address. Be cause download bandwidth is not coming properly at customer end. i can give the my dns bandwidth is coming. how can that problem resolved without change the old dns ip address.
another net work dns is 172.18.35.21
my network dns is 202.75.62.5.