Ccna-2v7.0 Case Study -rev B- ~repack~ «TOP | 2027»

interface range GigabitEthernet0/3 - 4 switchport mode access switchport access vlan 666 shutdown Use code with caution. Phase 4: Dynamic Host Configuration (DHCP) Services

Candidates must design a network topology that meets the company's requirements. The topology should include:

: Configure R1 or a central server to provide IPv4/IPv6 leases. Use ip dhcp excluded-address to protect static IPs like gateways. ccna-2v7.0 case study -rev b-

The scenario follows the hypothetical expansion of of Bangor, Maine, following its acquisition of Big-Corp , which operates remote branches in Phoenix, Arizona, and Chicago, Illinois. To establish structured network baseline communications before deploying a dynamic routing protocol, the infrastructure relies heavily on IPv4/IPv6 static routing, sub-netted local area networks (VLANs), Layer 2 security mitigations, and standalone DHCP environments. Phase I: IP Addressing and VLAN Structuring

VLSM, IPv4 Subnetting, IPv6 Link-Local, Dual-Stack Addressing ip address , ipv6 address , description Use ip dhcp excluded-address to protect static IPs

Because static paths control global connectivity, the edge routers must run a fully explicit route logic for both IPv4 and IPv6 topologies.

Security is a priority from the start. On all routers and switches (like CHG-RTR, PHX-SW-1, and BAN-RTR), you must: Phase I: IP Addressing and VLAN Structuring VLSM,

[PHX-LAN-110] \ ===> [PHX-SW-1] ---> (Router-on-a-Stick) ---> [BorderRouter] ===> [ISP] [PHX-LAN-120] / Router-on-a-Stick Inter-VLAN Architecture

Configure sub-interfaces on the central router to act as the default gateway for each VLAN. ITExamAnswers 3. Static Routing & Redundancy IPv4 & IPv6 Static Routes:

Unoptimized switches run risks of broadcast storms or spanning-tree loops. This section defines trunking, native mapping, and loops mitigation using . Trunk Configuration and Native Tagging

Defining routes to internal networks and a default route to the ISP. Verification commands (e.g., show ip route show ip int brief show etherchannel summary ) to confirm connectivity.