Lecture (08) DHCP server L3 switch By: Dr. Ahmed ElShafee Dr. Ahmed ElShafee, ACU : Fall 2015, Practical App. Networks II

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1 Lecture (08) DHCP server L3 switch By: Dr. Ahmed ElShafee ١ Dr. Ahmed ElShafee, ACU : Fall 2015, Practical App. Networks II Topology 01 ٢

2 Topology 01 4 DHCP servers ٣ G Floor F0Dest1 F0Edge1 F0AP1 R0 F0AP3 ٤ F0Edge2 F0AP2 R1

3 enable config t hostname Core line vty 0 4 password cisco login F0Dest vlan 2 name vlan2 vlan 3 name vlan3 vlan 4 name vlan4 line console 0 password cisco login enable password cisco enable secret cisco1 interface vlan 1 ip address vtp domain ACU vtp mode server ٥ vlan 5 name wlan interface range fa0/1-24 speed auto duplex auto interface range fa6/1-24 switchport mode trunk interface fa0/2 switchport access vlan 2 interface fa0/3 switchport access vlan 3 interface fa0/4 switchport access vlan 4 interface fa0/5 switchport access vlan 5 spanning-tree vlan 1,2,3,4,5 root primary end ٦

F0-Edge enabl config t hostname F0Edge1 line vty 0 4 password cisco login line console 0 password cisco login enable password cisco enable secret

255.255.0 vtp domain ACU vtp mode client ٧ interface range fa0/1-24 speed auto duplex auto interface range fa0/24 switchport mode trunk interface

4 F0-Edge enabl config t hostname F0Edge1 line vty 0 4 password cisco login line console 0 password cisco login enable password cisco enable secret cisco1 interface vlan 1 ip address vtp domain ACU vtp mode client ٧ interface range fa0/1-24 speed auto duplex auto interface range fa0/24 switchport mode trunk interface range fa0/1-7 switchport access vlan 2 interface range fa0/8-14 switchport access vlan 3 interface range fa0/15-21 switchport access vlan 4 interface range fa0/22-23 switchport access vlan 5 end copy running-config startup-config DHCP Server@VLAN02 ٨

5 ٩ ١٠

6 ١١ ١٢

7 Testing all switches can access all other switches F0Dest is the core All PCs on VLAN 02 can access each other All PCs on VLAN 03 can access each other All PCs on VLAN 04 can access each other All Wireless PCs can access each other ١٣ Multilayer Switch 3560 ١٤

8 What is the difference between L2 & L3 switch 1. Can exchange IP packets between different VLANs if the switch can identify the destination 2. While passing packets through trunk port, switch strip L2 header/tale of packet including VLAN tag (802.1q protocol), determine destination port, add new L2 header/tale to IP packet contains VLAN tag for destination port. ١٥ ١٦

9 Commands can be only executed on muti layer switch Enable L3 packet routing ip routing Enable encapsulation on trunk ports interface range fa0/1 24 switchport trunk encapsulation dot1q switchport mode trunk ١٧ Topology 02 ١٨

10 G Floor Core F0Edge1 F0AP1 R0 F0AP3 ١٩ F0Edge2 F0AP2 R1 Multilayer Switch ٢٠

11 enable config t hostname Core ip routing line vty 0 4 password cisco login line console 0 password cisco login enable password cisco enable secret cisco1 Core vlan 2 name vlan2 interface vlan 2 ip address vlan 3 name vlan3 interface vlan 3 ip address vlan 4 name vlan4 interface vlan 1 ip address interface vlan 4 ip address vtp domain ACU vtp mode server ٢١ vlan 5 name wlan interface vlan 5 ip address interface range fa0/1-24 speed auto duplex auto interface range fa0/1-24 switchport trunk encapsulation dot1q switchport mode trunk interface fa0/5 switchport access vlan 5 spanning-tree vlan 1,2,3,4,5 root primary end copy running-config startup-config interface fa0/2 switchport access vlan 2 interface fa0/3 switchport access vlan 3 interface fa0/4 switchport access vlan 4 ٢٢

12 ٢٣ ٢٤

13 ٢٥ ٢٦

14 ٢٧ ٢٨

15 ٢٩ Topology 03 ٣٠

A command called "IP helper address" used by broadcast applications such as DHCP client(bootp), NetBIOS and so

16 Multilayer Switch, and DHCP server ٣١ Another feature for multilayer switch is capability to configure an interface to forward broadcasting frames to certain destination IP. A command called "IP helper address" used by broadcast applications such as DHCP client(bootp), NetBIOS and so on. So while configuring the vlan interface on core use IP helperaddress a.b.c.d to tell core to forward all broadcasting frames to DHCP server identified by IP ٣٢

17 enable config t hostname Core ip routing line vty 0 4 password cisco login line console 0 password cisco login enable password cisco enable secret cisco1 Core interface vlan 2 ip address ip helper-address vlan 3 name vlan3 interface vlan 3 ip address ip helper-address vlan 4 name vlan4 interface vlan 1 ip address vlan 2 name vlan2 ٣٣ interface vlan 4 ip address ip helper-address vlan 5 name wlan interface vlan 5 ip address ip helper-address vtp domain ACU vtp mode server interface range fa0/1-24 speed auto duplex auto interface range fa0/6-24 switchport trunk encapsulation dot1q switchport mode trunk interface fa0/1 switchport access vlan 1 interface fa0/3 switchport access vlan 3 interface fa0/4 switchport access vlan 4 interface fa0/5 switchport access vlan 5 spanning-tree vlan 1,2,3,4,5 root primary end copy running-config startup-config interface fa0/2 switchport access vlan 2 ٣٤

18 Server ٣٥ Server ٣٦

19 Server ٣٧ ٣٨

20 ٣٩ Thanks,.. See you next week (ISA), ٤٠ Dr. Ahmed ElShafee, ACU : Fall 2015, Practical App. Networks II

Lecture (06) Design and Configuration LAN Practicing, working on CISCO equipment. By: Dr. Ahmed ElShafee

Lecture (06) Design and Configuration LAN Practicing, working on CISCO equipment By: Dr. Ahmed ElShafee ١ Dr. Ahmed ElShafee, ACU : Fall 2015, Practical App. Networks II Part I ٢ ٣ SW01 steps firstly connect