- Virtual tunnel interface GRE over IPv4
.sp
.BR gretap
-- Virtual L2 tuunel interface GRE over IPv4
+- Virtual L2 tunnel interface GRE over IPv4
.sp
.BR ip6gre
-- Virtual tuunel interface GRE over IPv6
+- Virtual tunnel interface GRE over IPv6
.sp
.BR ip6gretap
-- Virtual L2 tuunel interface GRE over IPv6
+- Virtual L2 tunnel interface GRE over IPv6
.in -8
.TP