Add devices, then use Cable and click two devices to connect them. Click a device to set its address. Every device on one LAN needs the same first three numbers, and a computer's gateway is the router on its LAN.
Send a packet
Not sure what a result means? Field guide: reading a result.
■ Ethernet (MAC addresses)■ IP header (IP addresses, TTL)■ TCP or UDP (ports)■ the dataClick bytes or rows to match them up.
Save or load this network as text
How this simplifies real networks: every network is a /24 (the first three numbers), routers find routes on their own, and TCP is shown one segment at a time. Everything else, including the header bytes and checksums, is real.