I have linux boxes connected via pppoe to our mikrotiks running pppoe-server, no problems.
I have a recent customer who has a linux box connected which logs the following error:
Apr 29 17:13:13 general pppd[21560]: Unsupported protocol ‘Bridging NCP’ (0x8031) received
Apr 29 17:13:13 general pppd[21560]: sent [LCP ProtRej id=0x2 80 31 01 01 00 0c 03 03 01 08 03 01 09 02]
Apr 29 17:13:13 general pppd[21560]: rcvd [IPCP ConfNak id=0x1 <addr 206.220.193.166>]
Apr 29 17:13:13 general pppd[21560]: sent [IPCP ConfReq id=0x2 <addr 206.220.193.166>]
Apr 29 17:13:13 general pppd[21560]: rcvd [IPCP ConfAck id=0x2 <addr 206.220.193.166>]
Apr 29 17:13:13 general pppd[21560]: local IP address 206.220.193.166
Apr 29 17:13:13 general pppd[21560]: remote IP address 192.168.248.245
Apr 29 17:13:13 general pppd[21560]: Script /etc/ppp/ip-up started (pid 21651)
Apr 29 17:13:13 general pppd[21560]: rcvd [LCP TermReq id=0x2 “could not add address: already have such address (6)”]
Apr 29 17:13:13 general pppd[21560]: LCP terminated by peer (could not add address: already have such address (6))
Apr 29 17:13:13 general pppd[21560]: Connect time 0.0 minutes.
Apr 29 17:13:13 general pppd[21560]: Sent 0 bytes, received 0 bytes.
Apr 29 17:13:13 general pppd[21560]: sent [LCP TermAck id=0x2]
Apr 29 17:13:13 general pppoe[21589]: Session 378 terminated – received PADT from peer
Apr 29 17:13:13 general pppoe[21589]: Sent PADT
Apr 29 17:13:13 general pppd[21560]: Modem hangup
Apr 29 17:13:13 general pppd[21560]: Connection terminated.
Anybody have any ideas as to what could be causing this.
I am hoping to advise my client shortly.
It takes approx. 5 seconds before the linux machine replies to pings through its ppp-client interface.
Then it replies for about 5-7 seconds then stops.
I did notice this in the log which corresponds to the pings being dropped after being responded to up until this point, within seconds the ppp connection is terminated.
I have the same issue , and the clients are disconecting at a random time (12-24 h) , once a day all users get disconected.
Log from my linux machine connected to RB:
Oct 7 20:41:11 dnsnetwork pppoe-connect: PPPoE connection lost; attempting re-connection.
Oct 7 20:41:16 dnsnetwork pppd[4238]: pppd 2.4.5 started by root, uid 0
Oct 7 20:41:16 dnsnetwork pppd[4238]: Using interface ppp0
Oct 7 20:41:16 dnsnetwork pppd[4238]: Connect: ppp0 ↔ /dev/pts/0
Oct 7 20:41:16 dnsnetwork pppoe[4239]: PPP session is 3882 (0xf2a)
Oct 7 20:41:17 dnsnetwork pppd[4238]: CHAP authentication succeeded
Oct 7 20:41:17 dnsnetwork pppd[4238]: local IP address 82.xxx.xxx.xxx
Oct 7 20:41:17 dnsnetwork pppd[4238]: remote IP address 172.16.0.2
Oct 7 20:47:38 dnsnetwork pppoe[4239]: Session 3882 terminated – received PADT from peer
Oct 7 20:47:38 dnsnetwork pppoe[4239]: PADT: Generic-Error:
Oct 7 20:47:38 dnsnetwork pppoe[4239]: Sent PADT
Oct 7 20:47:38 dnsnetwork pppd[4238]: Modem hangup
Oct 7 20:47:38 dnsnetwork pppd[4238]: Connect time 6.4 minutes.
Oct 7 20:47:38 dnsnetwork pppd[4238]: Sent 214 bytes, received 986 bytes.
Oct 7 20:47:38 dnsnetwork pppd[4238]: Connection terminated.
Oct 7 20:47:39 dnsnetwork pppd[4238]: Exit
The routerboad is a MK RB2011-UAS-2HnD with RouterOS 6.4 , i’m not using it as a AP just as a PPPoE server.
Has anybody found some workaround or some settings to prevent this?