Cisco 2950T-48 Instrukcja Użytkownika Strona 1

Cisco Lab@Politecnico di TorinoFulvio Rissohttp://staff.polito.it/fulvio.risso/1

Ethernet cables (2)Ethernet/FastEthernet cable PinStraight-thru CrossoverColor Signal Color Signal1WGTRD0WOTRD11W-GTRD0+W-OTRD1+2G TRD0-BL TRD1-3 W-O

DTE/DCE cablesDCE/DTE: usually connected to a geographical modem (e g HDSL)11DCE/DTE: usually connected to a geographical modem (e.g. HDSL)Lab: conne

Multiserial card12

The Netlab serverSniffing interface(No IP address)InternetPublic interface(for remote access)Interface on the NetLab LAN(ping, …)13

A possible logical topologyFe0R1Fe1*Fe1*Fe2*Fe2*R2R3Fe0 Fe0Fe1* Fe2*Rete pubblica(Internet)Rete routerR4 R7Fe0 Fe0Fe1*Fe1*Fe2* Fe2*R9R6R5 R8Fe0 Fe0Fe0

Physical topologyR1: Cisco 1711VPN/K9R2: Cisco 1711VPN/K9FE 0/1R1-FE0Vlan 10FE 0/3R1-FE2Vlan 12FE 0/5R2-FE1Vlan 23. . .GE 0/1GE 0/1PCS iffi. . .HP dc5

Access to the remote lab (1) Physical address of the Windows 2003 serversy Labreti-mondovi.ipv6.polito.it Labreti-torino.ipv6.polito.it Remote Des

Access to the remote lab (2)17

Access to the remote lab (3)18

Available apps (1)Command promptForping, traceroute...Please take in mind which interface the server is using, and the availability ofan IP pathTFTP s

Main objectives Main use: teaching So, features, not performances Not experimental devices, but what students will use in theirwork life Students

Available apps (2)Interfaces:- Sniffing interface (passive interface, sniffing only)- Captures traffic flowing on all the other interfaces (except ser

Online website21

Some tips: switched/routed interfacesSwitched Ethernet Switched Ethernet interfaces Routed Ethernet Routed Ethernet interface!! Please take care about

Some tips: Groups and Workplaces Groupsp Max 4 students/group Each group has its own password (ask the Assistant forcredentials) Please use your w

Some tips: logistics Remote Desktopp Log-off explicitely Please do not DISCONNECT or CLOSE !! Router may be blocked !! Access to routersPlftthitl

Some tips: assistance and lab hours Routers are available H24, assistance is not A professor will be available only during lab hours for consultancy

Lab and assistance Lab hours can be used as consultancyhoursy If you want to get a better use of this time, please doyour exercises at home, and if

Some tips: troubleshooting Routers are real devices so,you mayexpect...,yyp Strange behaviours Cable not working Need to reboot the device If you

LAN fPC lbNOTES*: Switched interface (requires theconfiguration of VLANs)**: DCE interface (required theconfiguration of the clockrate)Vlan 10NetlabM

LAN fPC lbNOTEs*: Switched interface (requires theconfiguration of VLANs)Vlan 10NetlabTorinoR1Fe0*Fe1*Fe2*LAN forPC labmachinesSniffing interface(N

Why is the lab remote? H24 availabilityy We can use it also in courses with large number of students To control the lab better Student do no have

Physical topologyFE 0/1R1-FE0Vlan 10FE 0/3R1-FE2Vlan 12FE 0/5R2-FE1Vlan 23FE 0/7R3-FE0Vlan 999FE 0/9R3-FE2Vlan 23FE 0/11R4-FE1Vlan 46FE 0/13R4-FE3Vlan

Sructure of the labCh i iCharacteristics 9 routers, controlled by a single PC Remote access o the “master” server Possibility to change the logical

How the lab looks likeGeneral viewRouters details5

Physical devices Router: Cisco 1700 / Cisco 870 Entry-level Low cost, but it maintains all the features of the high-end devices(although it is slow

Rear view of a router: Cisco 1721Serial port (WIC) Console portEthernet ON/OFF Kensington lock (WIC) port10BaseT (WIC)ON/OFF switchSerial ledPowerAUX

Connection between devices: consoleClbl ll 9hhd8Console cable: usually RJ45 on one site, DB9 on the other side(often made with a straight Ethernet cab

Ethernet cables (1)Couple 2Ethernet RXCouple 1PhoneEthernet RXCouple 4Not usedCouple 3Ethernet TXBLW-BLOW-OGW-GBRW-BR9