I am having two Cisco router 1841 router having MPLS connectivity and 1721 router having DLS internet. This two routers are connected back to back please see the attachment for connectivity. From internet router I am able to ping google without issue but I am getting packet drops in 1821 router while ping the google. From 8141 router I am able to reach the 1721 router with out issue. Only facing problem while pinging internet from 1841. HSRP configured 1841 router is primary router. Please any one help me .