Symbol: GRE_VERSION_1
drivers/net/ppp/pptp.c
219
hdr->gre_hd.flags = GRE_KEY | GRE_VERSION_1 | GRE_SEQ;
net/netfilter/nf_conntrack_proto_gre.c
226
if (!grehdr || (grehdr->flags & GRE_VERSION) != GRE_VERSION_1) {
net/netfilter/nf_nat_proto.c
249
case GRE_VERSION_1: