> Most nodes already forward any packet they can handle On second thought, I guess I am wrong here, since the default MTU in Linux is a very low number (somethi

> Most nodes already forward any packet they can handle On second thought, I guess I am wrong here, since the default MTU in Linux is a very low number (something like 1500). Robustness would be to have limit by default and fully rely on MTU discovery. Although the low default was probably established because of the aforementioned ICMP filtering issue.