R1(config)#line vty 0 ? <1-4> Last Line number -----> ho tro tu 5 phien ket noi tu xa <cr> ----------------R1(config)#line vty 0 4 ---> cho phep chi su dung 5 phien ket noi R1(config-line)# R1(config)#line vty 0 4 R1(config-line)#pass R1(config-line)#password vnpro ---> pass cho VTY R1(config-line)#login R1(config-line)#exit
CISCO DISCOVERY PROTOCOL (CDP) 1. Dinh nghia :
La giao thuc cho phep phat hien cac thiet bi Cisco khac dang ket noi "truc tiep" voi thiet bi cua minh Hoat dong Layer 2 Chi co tren thiet bi cua Cisco
2. Chuc nang: -Kiem tra trang thai hoat dong cua thiet bi lang gieng -Lay duoc thong tin cua cac thiet bi lang gieng -Ve so do mang R1#sh CDP neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID R2
Local Intrfce Holdtme Eth 0/0 173
Capability Platform Port ID R 2620 Fas 0/0
R1# R1#sh CDP neighbors -> kiem tra cac thiet bi noi truc tiep toi Router Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID R2
Local Intrfce Holdtme Eth 0/0 150 R
Capability Platform Port ID 2620 Fas 0/0
R1#sh CDP neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port ID R2 Eth 0/0 122 R 2620 Fas 0/0 R1#sh CDP neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge Trang 17/201