- u32 mtu = rmt->is_ip4 ? vnet_sw_interface_get_mtu (vnet_get_main (),
- rmt->peer.sw_if_index,
- VNET_MTU_IP4) :
- vnet_sw_interface_get_mtu (vnet_get_main (), rmt->peer.sw_if_index,
- VNET_MTU_IP6);
+ if (rmt->peer.sw_if_index != ENDPOINT_INVALID_INDEX)
+ mtu = rmt->is_ip4 ? vnet_sw_interface_get_mtu (vnet_get_main (),
+ rmt->peer.sw_if_index,
+ VNET_MTU_IP4) :
+ vnet_sw_interface_get_mtu (vnet_get_main (), rmt->peer.sw_if_index,
+ VNET_MTU_IP6);