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-rw-r--r--src/vnet/ipip/ipip.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/vnet/ipip/ipip.c b/src/vnet/ipip/ipip.c
index 9b808d4ac0f..82c961cdddd 100644
--- a/src/vnet/ipip/ipip.c
+++ b/src/vnet/ipip/ipip.c
@@ -476,16 +476,17 @@ ipip_add_tunnel (ipip_transport_t transport,
{
vec_validate (im4->fib_index_by_sw_if_index, sw_if_index);
hi->min_packet_bytes = 64 + sizeof (ip4_header_t);
- hi->max_packet_bytes = 65536 - sizeof (ip4_header_t);
}
else
{
vec_validate (im6->fib_index_by_sw_if_index, sw_if_index);
hi->min_packet_bytes = 64 + sizeof (ip6_header_t);
- hi->max_packet_bytes = 65536 - sizeof (ip6_header_t);
}
- vnet_sw_interface_set_mtu (vnm, sw_if_index, hi->max_packet_bytes);
+ hi->per_packet_overhead_bytes = /* preamble */ 8 + /* inter frame gap */ 12;
+
+ /* Standard default ipip MTU. */
+ hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = 9000;
t->tunnel_src = *src;
t->tunnel_dst = *dst;