IP_PMTUDISC_WANT 417 include/net/ip.h (pmtudisc == IP_PMTUDISC_WANT && IP_PMTUDISC_WANT 343 net/ipv4/af_inet.c inet->pmtudisc = IP_PMTUDISC_WANT; IP_PMTUDISC_WANT 228 net/ipv6/af_inet6.c inet->pmtudisc = IP_PMTUDISC_WANT;