Symbol: open_udp6fd
usr/src/cmd/cmd-inet/usr.bin/pppd/sys-solaris.c
3085
if (use_plink && (udp6fd = open_udp6fd()) == -1)
usr/src/cmd/cmd-inet/usr.bin/pppd/sys-solaris.c
3174
if ((udp6fd = open_udp6fd()) == -1)