Lab 01 - InaFricke/SYS-255 GitHub Wiki

Lab 01 | Environment Setup

Helpful links

URL for Remote Access to get on Champlain Network: https://viewportal.champlain.edu/ URL for vSphere once on Champlain Network: https://vcenter02.cyber.local

I had to go in and add a second network adapter.

Use the downward-facing carrot to change the order if necessary.

Assign interfaces

MAC addresses of the FW01’s network interfaces

WAN MAC: 00:50:56:a1:55:01

LAN MAC: 00:50:56:a1:db:df

Set interface IP address

WAN IP assigned: 10.0.17.103

LAN IP: 10.0.5.2

Assing Admin

Use windows GUI to create a user and give it admin privileges

admin

ina.fricke H****S**11

Commands

whoami

ping -n 1 google.com

ipconfig/all

Issues

When I tried to ping there was no outgoing traffic.

I tried setting the interface for WAN again and did the upstream gateway correctly and the ping worked.

3 tech terms

Firewall: A device on the network that monitors incoming and outgoing network traffic. It uses a set of defined rules to decide what is allowed through and what is blocked. Provides a barrier between an internal network and the outside. Can be a physical device or SaaS.

https://www.cisco.com/c/en/us/products/security/firewalls/what-is-a-firewall.html#:~:text=A%20firewall%20is%20a%20network,security%20for%20over%2025%20years.

Dynamic Host Configuration Protocol (DHCP): is a network protocol that is used to configure network devices to communicate on an IP network. A DHCP client uses the DHCP protocol to acquire configuration information, such as an IP address, a default route, and one or more DNS server addresses from a DHCP server. The DHCP client then uses this information to configure its host. Once the configuration process is complete, the host is able to communicate on the Internet.

https://www.cisco.com/assets/sol/sb/RV320_Emulators/RV320_Emulator_v1-2-1-14/help/DHCP.html#:~:text=Dynamic%20Host%20Configuration%20Protocol%20(DHCP,addresses%20from%20a%20DHCP%20server.

Default Gateway: Device/ router that connects a local network to the internet (every device that wants to connect to the internet needs to know it). I am slightly confused about the difference between the default gateway and the Upstream Gateway It allows user to access servers and devices outside of their network — all the traffic they send and receive goes through it. Without a default gateway, browsing the internet would be a much more laborious effort.

https://nordvpn.com/blog/what-is-a-default-gateway/