What module card should I get for Cisco 1721?
I'm getting 3 or 4 Cisco 1721 to build a test lab for my CCNA study. At school, we used Cisco smart cable to connect two routers to act as WAN link. Most Cisco
1721 on Ebay.com don't have this serial interface module cards. They usually have a T1 DSU/CSU module card. Can this T1 connection function as WAN link? Or should I get maybe one serial interface module cards for each 1721 router? read more and respond »Posted 5 years ago by pppel in Cisco Systems
