From the course: Firewall Administration Essential Training

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Prevent local traffic from exiting to the internet

Prevent local traffic from exiting to the internet

From the course: Firewall Administration Essential Training

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Prevent local traffic from exiting to the internet

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- [Instructor] We're going to talk about RFC 1918 networks and how to basically keep the traffic from going across the WAN connection if it should be private. Local-only traffic is network traffic and we've talked about RFC 1918 networks that are designed for this already. An example would be requests from a client to a local file server Let's build some assumptions around this idea So it's a good idea to keep private traffic private, right? This avoids unnecessary traffic on the WAN link, but also provides a small security benefit to the organization. This type of misrouted internal network traffic might happen where an inter-campus site-to-site VPN that you control, but then say, the link goes down, so the traffic intended for systems on that other side of that link have nowhere else to go, but the default route which is through the gateway to the internet. a vulnerability that could surely be timed and exploited under the right conditions. The chances of this happening are low and…

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