Simple confiuration on 3600: no access-list, no routing protocol, the interface(s0/0) is up. When I console in, I could not even ping the interface IP. Same problem on two routers. Same linecode, framing, timeslots on both router. Did I miss anything ? Thanks --------------------------------------------------------------------- interface Serial0/0 ip address 6.6.6.6 255.0.0.0 no ip directed-broadcast encapsulation ppp service-module t1 timeslots 1-24 --------------------------------------------------------------------- 3600# 3600#sh ip int bri Interface IP-Address OK? Method Status Protocol FastEthernet0/0 2.2.2.2 YES NVRAM up up Serial0/0 6.6.6.6 YES NVRAM up up FastEthernet0/1 unassigned YES NVRAM administratively down down --------------------------------------------------------------------- 3600#ping 6.6.6.6 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 6.6.6.6, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) --------------------------------------------------------------------- 3600# 3600#ping 2.2.2.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 2.2.2.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]