IP Packet Delivery process

fluk3d

just a quick question I have about routing. Maybe someone can shed some light on this.

Let's say Host A would like to send a packet to Host B, and host a determines that Host B is not local, it would then attach its Source/Destination IP, as well Source/Destination(default gatway) MAC

At this point, if R1 determines that the "packet" is not local would it then replace the destination mac with the mac of R2, or would it replace both source, and destination mac with its own info, and then pass it on to R2


Host A

---

R1

---

R2

---

R3

---

Host B


I probably made that sound complicated, wondering if any of the gurus out there can confirm if I have the logic correct?

networker050184

It replaces the L2 source to its out going interface and the destination to the next hop.