Original-Author: Simon Horman <simon.hor...@netronome.com>
Signed-off-by: Krister Johansen <k...@templeofstupid.com>
---
 ip/link_iptnl.c       | 21 ++++++++++++++++++++-
 man/man8/ip-link.8.in |  5 +++--
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/ip/link_iptnl.c b/ip/link_iptnl.c
index cf3a9ef..d24e737 100644
--- a/ip/link_iptnl.c
+++ b/ip/link_iptnl.c
@@ -50,6 +50,8 @@ static void print_usage(FILE *f, int sit)
        if (sit) {
                fprintf(f, "          [ mode { ip6ip | ipip | mplsip | any } 
]\n");
                fprintf(f, "          [ isatap ]\n");
+       } else {
+               fprintf(f, "          [ mode { ipip | mplsip | any } ]\n");
        }
        fprintf(f, "                [ external ]\n");
        fprintf(f, "                [ fwmark MARK ]\n");
@@ -251,6 +253,21 @@ get_failed:
                                proto = 0;
                        else
                                invarg("Cannot guess tunnel mode.", *argv);
+               } else if (strcmp(lu->id, "ipip") == 0 &&
+                          strcmp(*argv, "mode") == 0) {
+                       NEXT_ARG();
+                       if (strcmp(*argv, "ipv4/ipv4") == 0 ||
+                                strcmp(*argv, "ipip") == 0 ||
+                                strcmp(*argv, "ip4ip4") == 0)
+                               proto = IPPROTO_IPIP;
+                       else if (strcmp(*argv, "mpls/ipv4") == 0 ||
+                                  strcmp(*argv, "mplsip") == 0)
+                               proto = IPPROTO_MPLS;
+                       else if (strcmp(*argv, "any/ipv4") == 0 ||
+                                strcmp(*argv, "any") == 0)
+                               proto = 0;
+                       else
+                               invarg("Cannot guess tunnel mode.", *argv);
                } else if (strcmp(*argv, "noencap") == 0) {
                        encaptype = TUNNEL_ENCAP_NONE;
                } else if (strcmp(*argv, "encap") == 0) {
@@ -343,9 +360,11 @@ get_failed:
        addattr16(n, 1024, IFLA_IPTUN_ENCAP_SPORT, htons(encapsport));
        addattr16(n, 1024, IFLA_IPTUN_ENCAP_DPORT, htons(encapdport));
 
+       if (strcmp(lu->id, "ipip") == 0 || strcmp(lu->id, "sit") == 0)
+               addattr8(n, 1024, IFLA_IPTUN_PROTO, proto);
+
        if (strcmp(lu->id, "sit") == 0) {
                addattr16(n, 1024, IFLA_IPTUN_FLAGS, iflags);
-               addattr8(n, 1024, IFLA_IPTUN_PROTO, proto);
                if (ip6rdprefixlen) {
                        addattr_l(n, 1024, IFLA_IPTUN_6RD_PREFIX,
                                  &ip6rdprefix, sizeof(ip6rdprefix));
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index 994b539..a782712 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -703,8 +703,9 @@ applicable for Generic UDP Encapsulation.
 .BI mode " { ip6ip | ipip | mplsip | any } "
 - specifies mode in which device should run. "ip6ip" indicates
 IPv6-Over-IPv4, "ipip" indicates "IPv4-Over-IPv4", "mplsip" indicates
-MPLS-Over-IPv4, "any" indicates IPv6, IPv4 or MPLS Over IPv4. Only
-supported for SIT where the default is "ip6ip".
+MPLS-Over-IPv4, "any" indicates IPv6, IPv4 or MPLS Over IPv4. Supported for
+SIT where the default is "ip6ip" and IPIP where the default is "ipip".
+IPv6-Over-IPv4 is not supported for IPIP.
 
 .in -8
 
-- 
2.7.4

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