can't ping directly connected routers

pcdoctor305pcdoctor305 Member Posts: 1 ■□□□□□□□□□
hey Guys I'm trying to became a CCNA, I have purchased 3 cisco 2600 series and 4 2950 routers on Ebay.
I connected the router using the the serial interface. R1 has 2 serial port, R2 has 1, and R3 has 1 as well.
I've assigned ip address to all of the interface, R1 is configure as the DCE interface and I issued the clock rate from there. R2 and R3 has the DTE receiving the clock rate. when I use the sh ip int bri command all the interface is up and up, but how ever i cant ping, by the way the protocol is hdlc on all 3 routers... help please...
st.hilaire, carlos


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