Hello,
my config
RB4011iGS+5HacQ2HnD, SN :HEP09DQP792, firmware 7.20.1.
I can’t connect to local ISP using pppoe.
It works with openwrt router.
1.pppoe connection to local isp using mikrotik
Sep/28/2025 12:30:43 pppoe,ppp,debug pppoe-out3: LCP opened
Sep/28/2025 12:30:43 pppoe,ppp,debug,packet pppoe-out3: rcvd CHAP Challenge id=0x1
Sep/28/2025 12:30:43 pppoe,ppp,debug,packet
Sep/28/2025 12:30:43 pppoe,ppp,debug,packet
Sep/28/2025 12:30:43 pppoe,ppp,debug,packet pppoe-out3: sent CHAP Response id=0x1
Sep/28/2025 12:30:43 pppoe,ppp,debug,packet
Sep/28/2025 12:30:43 pppoe,ppp,debug,packet <name 3350>
Sep/28/2025 12:30:43 pppoe,debug,packet sfp-sfpplus1: rcvd PADO from D4:C9:3C:30:EA:81
Sep/28/2025 12:30:43 pppoe,debug,packet session-id=0x0000
Sep/28/2025 12:30:43 pppoe,debug,packet host-uniq=0x9701d4
Sep/28/2025 12:30:43 pppoe,debug,packet service-name=
Sep/28/2025 12:30:43 pppoe,debug,packet ppp-max-payload=1492
Sep/28/2025 12:30:43 pppoe,debug,packet ac-name=Router
Sep/28/2025 12:30:43 pppoe,debug,packet ac-cookie=b8 a7 28 33 27 e1 3b bd ff c1 bc f8 c1 4a a3 48
Sep/28/2025 12:30:43 pppoe,debug sfp-sfpplus1: received PADO with unknown host-uniq, dropping
Sep/28/2025 12:30:44 pppoe,debug,packet sfp-sfpplus1: rcvd PADO from 00:B7:71:3B:70:01
Sep/28/2025 12:30:44 pppoe,debug,packet session-id=0x0000
Sep/28/2025 12:30:44 pppoe,debug,packet host-uniq=0x9701d4
Sep/28/2025 12:30:44 pppoe,debug,packet service-name=
Sep/28/2025 12:30:44 pppoe,debug,packet ppp-max-payload=1492
Sep/28/2025 12:30:44 pppoe,debug,packet ac-name=BRAS
Sep/28/2025 12:30:44 pppoe,debug,packet ac-cookie=42 6a dc 78 21 2b 01 b2 99 2c d9 1f c2 a0 f5 15
Sep/28/2025 12:30:44 pppoe,debug sfp-sfpplus1: received PADO with unknown host-uniq, dropping
Sep/28/2025 12:30:44 pppoe,ppp,debug,packet pppoe-out3: rcvd CHAP Failure id=0x1
Sep/28/2025 12:30:44 pppoe,ppp,debug,packet Authentication failed
2.the same pppoe connection using openwrt router
Fri Oct 10 20:15:12 2025 daemon.info pppd[25461]: PPPoE plugin from pppd 2.4.9
Fri Oct 10 20:15:12 2025 daemon.notice netifd: wan (25461): PPPoE plugin from pppd 2.4.9
Fri Oct 10 20:15:12 2025 daemon.notice pppd[25461]: pppd 2.4.9 started by root, uid 0
Fri Oct 10 20:15:12 2025 daemon.debug pppd[25461]: Send PPPOE Discovery V1T1 PADI session 0x0 length 12
Fri Oct 10 20:15:12 2025 daemon.notice netifd: wan (25461): Send PPPOE Discovery V1T1 PADI session 0x0 length 12
Fri Oct 10 20:15:12 2025 daemon.debug pppd[25461]: dst ff:ff:ff:ff:ff:ff src 3c:84:6a:6e:e8:8b
Fri Oct 10 20:15:12 2025 daemon.notice netifd: wan (25461): dst ff:ff:ff:ff:ff:ff src 3c:84:6a:6e:e8:8b
Fri Oct 10 20:15:12 2025 daemon.debug pppd[25461]: [service-name] [host-uniq 00 00 63 75]
Fri Oct 10 20:15:12 2025 daemon.notice netifd: wan (25461): [service-name] [host-uniq 00 00 63 75]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: Recv PPPOE Discovery V1T1 PADO session 0x0 length 40
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: dst 3c:84:6a:6e:e8:8b src 00:b7:71:3b:70:01
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: [service-name] [host-uniq 00 00 63 75] [AC-name BRAS] [AC-cookie 53 c4 59 89 21 b5 d4 65 5c
cf ee f1 d8 c7 a1 da]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: Send PPPOE Discovery V1T1 PADR session 0x0 length 32
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: dst 00:b7:71:3b:70:01 src 3c:84:6a:6e:e8:8b
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: [service-name] [host-uniq 00 00 63 75] [AC-cookie 53 c4 59 89 21 b5 d4 65 5c cf ee f1 d8 c7
a1 da]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Recv PPPOE Discovery V1T1 PADO session 0x0 length 40
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): dst 3c:84:6a:6e:e8:8b src 00:b7:71:3b:70:01
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): [service-name] [host-uniq 00 00 63 75] [AC-name BRAS] [AC-cookie 53 c4 59 89 21 b5
d4 65 5c cf ee f1 d8 c7 a1 da]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Send PPPOE Discovery V1T1 PADR session 0x0 length 32
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): dst 00:b7:71:3b:70:01 src 3c:84:6a:6e:e8:8b
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): [service-name] [host-uniq 00 00 63 75] [AC-cookie 53 c4 59 89 21 b5 d4 65 5c cf ee
f1 d8 c7 a1 da]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: Recv PPPOE Discovery V1T1 PADS session 0xa6a3 length 32
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: dst 3c:84:6a:6e:e8:8b src 00:b7:71:3b:70:01
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: [service-name] [host-uniq 00 00 63 75] [AC-cookie 53 c4 59 89 21 b5 d4 65 5c cf ee f1 d8 c7
a1 da]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: PADS: Service-Name: ''
Fri Oct 10 20:15:13 2025 daemon.info pppd[25461]: PPP session is 42659
Fri Oct 10 20:15:13 2025 daemon.warn pppd[25461]: Connected to 00:b7:71:3b:70:01 via interface eth0.2
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: using channel 25
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Recv PPPOE Discovery V1T1 PADS session 0xa6a3 length 32
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): dst 3c:84:6a:6e:e8:8b src 00:b7:71:3b:70:01
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): [service-name] [host-uniq 00 00 63 75] [AC-cookie 53 c4 59 89 21 b5 d4 65 5c cf ee
f1 d8 c7 a1 da]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): PADS: Service-Name: ''
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): PPP session is 42659
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Connected to 00:b7:71:3b:70:01 via interface eth0.2
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): using channel 25
Fri Oct 10 20:15:13 2025 kern.info kernel: [ 883.608273] pppoe-wan: renamed from ppp0
Fri Oct 10 20:15:13 2025 daemon.info pppd[25461]: Renamed interface ppp0 to pppoe-wan
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Renamed interface ppp0 to pppoe-wan
Fri Oct 10 20:15:13 2025 daemon.info pppd[25461]: Using interface pppoe-wan
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Using interface pppoe-wan
Fri Oct 10 20:15:13 2025 daemon.notice pppd[25461]: Connect: pppoe-wan <--> eth0.2
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): Connect: pppoe-wan <--> eth0.2
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xb5fc98c1>]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xb5fc98c1>]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: rcvd [LCP ConfReq id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): rcvd [LCP ConfReq id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: sent [LCP ConfAck id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xb5fc98c1>]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: rcvd [LCP ConfReq id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): rcvd [LCP ConfReq id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: sent [LCP ConfAck id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): sent [LCP ConfAck id=0x1 <mru 1492> <magic 0x479a7925>]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: rcvd [LCP ConfAck id=0x1 <mru 1492> <magic 0xb5fc98c1>]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): rcvd [LCP ConfAck id=0x1 <mru 1492> <magic 0xb5fc98c1>]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: sent [LCP EchoReq id=0x0 magic=0xb5fc98c1]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): sent [LCP EchoReq id=0x0 magic=0xb5fc98c1]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: rcvd [LCP EchoRep id=0x0 magic=0x479a7925]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): rcvd [LCP EchoRep id=0x0 magic=0x479a7925]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: rcvd [CHAP Challenge id=0x1 <0417ef7d797b5ab8c9b64827d69fbeb4>, name = "BRAS"]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: sent [CHAP Response id=0x1 , name = "3350"]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): rcvd [CHAP Challenge id=0x1 <0417ef7d797b5ab8c9b64827d69fbeb4>, name = "BRAS"]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): sent [CHAP Response id=0x1 , name = "3350"]
Fri Oct 10 20:15:13 2025 daemon.debug pppd[25461]: rcvd [CHAP Success id=0x1 ""]
Fri Oct 10 20:15:13 2025 daemon.info pppd[25461]: CHAP authentication succeeded
Fri Oct 10 20:15:13 2025 daemon.notice pppd[25461]: CHAP authentication succeeded
Fri Oct 10 20:15:13 2025 daemon.notice pppd[25461]: peer from calling number 00:B7:71:3B:70:01 authorized
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): rcvd [CHAP Success id=0x1 ""]
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): CHAP authentication succeeded
Fri Oct 10 20:15:13 2025 daemon.notice netifd: wan (25461): CHAP authentication succeeded