Login to Router and change to privileged mode c:\>telnet 192.168.6.1 Trying 192.168.6.1... Connected to 192.168.6.1. Escape character is ‘^]‘. User Access Verification Username: admin Password: MC1812> MC1812>enable Password: MC1812# At privileged mode, check and change to PPPoE password MC1812#sh run | inc pap ppp pap sent-username user1 password 7 12090404015A MC1812# MC1812#config t Enter configuration commands, one per line. End with CNTL/Z. MC1812(config)#int dialer1 MC1812(config-if)#ppp pap sent-username user2 password pass2 MC1812(config-if)#end MC1812# MC1812#sh run | inc pap ppp pap sent-username user2 password 7 111918160440 MC1812# At privileged mode, save settings MC1812#copy run start Destination filename [startup-config]? Building configuration... [OK] MC1812# At privileged mode, check and change NAT settings (如需要的話) HQ1812#sh run | inc source static ip nat inside source static tcp 192.168.1.16 21 223.255.154.242 21 extendable ip nat inside source static tcp 192.168.1.151 25 223.255.154.242 25 extendable ip nat inside source static tcp 192.168.1.151 53 223.255.154.242 53 extendable HQ1812# HQ1812#config t Enter configuration commands, one per line. End with CNTL/Z. HQ1812(config)# ip nat inside source static tcp 192.168.1.123 1234 223.255.154.242 5678 HQ1812(config)#end HQ1812# HQ1812#sh run | inc source static ip nat inside source static tcp 192.168.1.16 21 223.255.154.242 21 extendable ip nat inside source static tcp 192.168.1.151 25 223.255.154.242 25 extendable ip nat inside source static tcp 192.168.1.151 53 223.255.154.242 53 extendable ip nat inside source static tcp 192.168.1.5 1234 223.255.154.242 5678 extendable