SNR G284.3-1.8 is an incomplete radio shell with nonthermal spectrum, interacting with molec-ular clouds. It has been associated with the Vela-like pulsar PSR J1016-5857 in a search for a counterpart of the unidentified source 3EG J1013-5915 with the Parkes telescope. However, to make such an association one has to reconcile distance measurements of the SNR (CO line; 3 kpc) and the pulsar (dispersion measure; 8 or 9 kpc) as well as the large offset between the center of the shell and the pulsar. We have found an X-ray hotspot inside the shell thanks to archival Einstein observations. We present the result of XMM-Newton observations of the SNR and discuss the nature of this central object and its possible association with the SNR. Recently, the release of the Fermi-LAT telescope 11-month catalog has confirmed a bright high-energy (HE) source (1FGL J1018.6-5856) coincident with both the SNR and its central X-ray object. Finally, we report on the results of 40h of very-high-energy (VHE) gamma-rays observations of the region performed with the H.E.S.S. telescope array. This extensive multi-wavelength coverage of SNR G284.3-1.8 and its likely PSR/PWN system from radio to VHE gamma-rays allow us to shed light on the origin of the HE and VHE emission as well as to help to resolve the association between the SNR and PSR/PWN candidate.