Ccna-2v7.0 Case Study -rev B- -

| | Task | Command | | :--- | :--- | :--- | | 1 | Define inside interface | interface g0/0 ip nat inside | | 2 | Define outside interface | interface s0/0/0 ip nat outside | | 3 | Create ACL to identify internal traffic | access-list 1 permit 172.16.0.0 0.0.255.255 | | 4 | Configure PAT overload | ip nat inside source list 1 interface s0/0/0 overload | | 5 | Verify NAT translations | show ip nat translations show ip nat statistics |

Verifying that DHCP clients on the LAN receive valid IP addresses and that internal hosts can ping an external server (like 8.8.8.8) is a key success criterion.

or Layer 3 switch configurations to enable communication between these segments. 2. Basic Device Configuration & Security ccna-2v7.0 case study -rev b-

Before dynamic routing protocols can be deployed, basic connectivity must be established. The initial configuration phase of the case study typically involves setting up to enable communication between directly connected routers.

interface GigabitEthernet0/48 switchport trunk encapsulation dot1q switchport mode trunk | | Task | Command | | :---

: Use commands like show ip interface brief , show etherchannel summary , and show vlan brief after every major configuration block.

Create and name all specified VLANs explicitly on every local switch. Basic Device Configuration & Security Before dynamic routing

This is a summary route covering 192.168.0.0/21 (assuming your internal subnets fall within that range). Without this return route, traffic will go out but never come back.

: Implementing Inter-VLAN routing (Router-on-a-Stick or Layer 3 Switching) and securing the infrastructure with SSH and Port Security. Core Configuration Components

Acts as a security sinkhole. All unused, unassigned access ports are statically mapped here and administratively disabled. Structural Configuration Blueprint

R1(config)# ip dhcp excluded-address 192.168.10.1 192.168.10.10 R1(config)# ip dhcp excluded-address 192.168.20.1 192.168.20.5