For wired authentication the protocol version used in the EAPOL packets sent by ead is fixed to 802.1X-2004 (2) but some switches implementing only 802.1X-2001 erroneously ignore these packets. As ead only sends EAPOL-Start and EAP-Packet packets and these have not changed between 802.1X-2001 and 802.1X-2004 there should be no reason to use 802.1X-2004. Hence, this changes ead to always use 802.1X-2001 (1) instead. Switches implementing newer versions of 802.1X should not have problems responding to packets using the original version. --- wired/ethdev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/wired/ethdev.c b/wired/ethdev.c index c80d4fa0..e000afae 100644 --- a/wired/ethdev.c +++ b/wired/ethdev.c @@ -83,7 +83,7 @@ struct eapol_hdr { __be16 pkt_len; } __attribute__ ((packed)); -static const uint8_t eapol_start[] = { 0x02, 0x01, 0x00, 0x00 }; +static const uint8_t eapol_start[] = { 0x01, 0x01, 0x00, 0x00 }; static const uint8_t pae_group_addr[] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 }; static bool pae_write(struct ethdev *dev, const uint8_t *addr, @@ -149,7 +149,7 @@ static void eap_tx_packet(const uint8_t *eap_data, size_t len, void *user_data) struct eapol *eapol = user_data; uint8_t frame[1500]; - l_put_u8(0x02, frame); + l_put_u8(0x01, frame); l_put_u8(0x00, frame + 1); l_put_be16(len, frame + 2); memcpy(frame + 4, eap_data, len); -- 2.18.1