Campus & Branch Network

Done

Multi-building campus plus remote branch with VLANs, inter-VLAN routing, DHCP and RIPv2 over serial WAN.

Topology / Screenshots

Packet Tracer topology of the campus and branch network

Overview

Design a segmented, routable enterprise-style network spanning multiple campus buildings, a remote branch and a simulated cloud network.

Tools & technologies

Cisco Packet TracerCisco IOSVLANs802.1QRouter-on-a-StickDHCPRIPv2DCE/DTE SerialSubnetting

What I built

Department-based VLANs, each with its own subnet; access and 802.1Q trunk ports as required.
Router subinterfaces for inter-VLAN routing, each acting as the VLAN's default gateway.
Individual DHCP pools per network with default-router and DNS settings.
Serial DCE/DTE WAN links between campus, branch and cloud, 64,000 bps clock rate on DCE.
RIPv2 dynamic routing so routes are advertised and learned automatically.

Key configs & code

Campus router — DHCP pool & subinterface (excerpt) · cisco

ip dhcp pool Admin-Pool
 network 192.168.1.0 255.255.255.0
 default-router 192.168.1.1
 dns-server 192.168.1.1
!
interface GigabitEthernet0/0.10
 encapsulation dot1Q 10
 ip address 192.168.1.1 255.255.255.0
!
interface Serial0/3/0
 ip address 10.10.10.5 255.255.255.252
 clock rate 64000

Campus router — RIPv2 · cisco

router rip
 version 2
 network 10.0.0.0
 network 192.168.1.0
 network 192.168.2.0
 network 192.168.3.0
 network 192.168.4.0
 network 192.168.5.0
 network 192.168.6.0
 network 192.168.7.0
 network 192.168.8.0

Branch router — Staff/Student VLANs · cisco

ip dhcp pool Staff-pool
 network 192.168.9.0 255.255.255.0
 default-router 192.168.9.1
 dns-server 192.168.9.1
ip dhcp pool Student-pool
 network 192.168.10.0 255.255.255.0
 default-router 192.168.10.1
 dns-server 192.168.10.1
!
interface GigabitEthernet0/0.90
 encapsulation dot1Q 90
 ip address 192.168.9.1 255.255.255.0
!
interface GigabitEthernet0/0.100
 encapsulation dot1Q 100
 ip address 192.168.10.1 255.255.255.0

Challenges & troubleshooting

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What I learned

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