Talk:Path MTU Discovery

third paragraph
In the third paragraph you can read:

"Conversely, if PMTUD finds that the path allows a smaller MTU than what is possible on the lower"

IMHO that's wrong, it shoud say:

"Conversely, if PMTUD finds that the path allows a larger MTU than what is possible on the lower"

Furthermore, the whole paragraph is a bit confusing, so I propose to change it if you agree with me.

Greets! —Preceding unsigned comment added by 83.37.187.250 (talk • contribs)

SIOCGIFMTU
Would it make sense to mention the fact that it is possible to retreive the size of the MTU on a socket using the ioctl command as in :

struct ifreq ifr; memset(&ifr, 0, sizeof(ifr)); strcpy(ifr.ifr_name, "eth0"); if(ioctl(sock, SIOCGIFMTU, &ifr) == 0) {           int mtu_size = ifr.ifr_mtu; ...       }

Alexis Wilke (talk) 09:37, 30 May 2018 (UTC)