We have just migrated from frame (fractional T1) to an ATM type of WAN for a\npeer-to-peer connection. The new service is called TLS provided by AllSteam\nCanada. Basically, we are using the same Cisco 1721 router but another\nethernet module was added. They also put in another Cisco on each site as a\nbridge.\n\nAfter switching over, we realized a 5-time performance boost. It was a jump\nfrom a 256K F-T1 to 1Mbps ethernet. But I noticed two issues:\n\n1. Whenever I ping from one side to another, out of the 4 ping attempts\nfrom the Windows command prompt, the first one always is always responded\nwith a "Request time out". Subsequently, all other 3 attempts go well. If\nI ping the same IP address again, all 4 ping attempts go well. Does it mean\nthat it takes a longer time to discover the route?\n\n2.. When I ping to the other network from the router, I have to use\nextended ping to specify the source address. Otherwise, I cannot get any\nping response even though I can ping successfully from a PC.\n\nHere is the configuration I have used on one of the routers - Mercury. Both\nMercury and Mars are set up in the exact same way.\n\n1. Mercury is using 192.168.1.1 as its LAN address on FE0 and Mars is using\n192.168.2.1.\n2. E0 is used for WAN connection on both routers. Mercury is assisged\n172.20.20.1/30; Mars is assigned 172.20.20.2/30.\n3. S0 is shut on both routers after activating the new E0.\n\nThe WAN connection seem to work except for the two funny things mentioned\nabove. Did I make any mistake in the configuration? Can anyone shed some\nlights please?\n\nJoe\n\n\n\n\n-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\nshow config\n-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\nservice timestamps debug uptime\nservice timestamps log uptime\nservice password-encryption\n!\nhostname Mercury\n!\nenable password 7 08550855580A080E32457C\nip subnet-zero\nno ip domain-lookup\n!\ninterface Ethernet0\ndescription connected to Mars on TLS-Over-DS1\nip address 172.20.20.1 255.255.255.252\nno keepalive\nfull-duplex\n!\ninterface FastEthernet0\ndescription connected to EthernetLAN\nip address 192.168.1.1 255.255.255.0\nno keepalive\nspeed auto\n!\ninterface Serial0\ndescription Connection to Mars @ 256k\nno ip address\nencapsulation frame-relay\nshutdown\nservice-module t1 timeslots 1-4\nservice-module t1 remote-alarm-enable\nframe-relay lmi-type cisco\n!\ninterface Serial0.1 point-to-point\ndescription connected to Mars\nip unnumbered FastEthernet0\nframe-relay interface-dlci 50\n!\nrouter rip\nversion 2\nnetwork 192.168.1.0\nno auto-summary\n!\n!\nip classless\nip route 192.168.2.0 255.255.255.0 Ethernet0\nno ip http server\n!\n!