Source routing concepts

Posted on by David Vassallo

Source routing is basically an option in IP (layer 3) where a packet can instruct a gateway (for example the sonciwall) which hops to send the packet to. Its like the client deciding which route the packets should take. Now this of course is kinda bad because if the client (let’s say he’s a hacker) … Continue reading Source routing concepts

OSPF route failover

Posted on by David Vassallo

A colleague recently asked why, at a basic level, is dynamic routing such as OSPF useful? The very first thing that comes to mind is of course route failover. That is, when a network contains multiple routes to the same network, dynamic routing automatically will "failover" to an alternative route when the primary route is unavailable. … Continue reading OSPF route failover