Index: linux-5.4.124/drivers/net/ppp/pppoe.c
===================================================================
--- linux-5.4.124.orig/drivers/net/ppp/pppoe.c
+++ linux-5.4.124/drivers/net/ppp/pppoe.c
@@ -502,6 +502,12 @@ static int pppoe_disc_rcv(struct sk_buff
 	if (ph->code != PADT_CODE)
 		goto abort;
 
+	// compare the dst addr to the current net device addr and ignore packet if not matching
+	// otherwise it will terminate the connection
+	if(!ether_addr_equal(eth_hdr(skb)->h_dest, dev->dev_addr)) {
+		goto abort;
+	}
+
 	pn = pppoe_pernet(dev_net(dev));
 	po = get_item(pn, ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
 	if (po)