Problem in connecting PPPOE Wan in WR1043N

pluto · October 13, 2020, 6:52pm

Hello folks,
I have two identical TL-WR1043N devices of the same version and running 19.07.04. The pppoe wan connects on one device and does not connect on the other. I tried the following things.

Config reset both the devices and configure.
Download the configuration from the working device and upload to the non-working one.
downgraded to openwrt 18 and tried.

but one device seems does not work at all with PPPOE wan, but it works fine with dhcp.

I enabled the debug in the pppoe conf file and capture some logs.

Here is the working one

Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Send PPPOE Discovery V1T1 PADI session 0x0 length 12
 dst ff:ff:ff:ff:ff:ff  src 70:4f:57:b2:60:be
 [service-name] [host-uniq  00 00 0f ee]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 46
 dst 70:4f:57:b2:60:be  src ac:1f:6b:a4:0b:4c
 [AC-name EXCITEL] [service-name] [service-name excitel] [host-uniq  00 00 0f ee] [AC-cookie  1b f6 af d6 04 88 ff ff]
Send PPPOE Discovery V1T1 PADR session 0x0 length 24
 dst ac:1f:6b:a4:0b:4c  src 70:4f:57:b2:60:be
 [service-name] [host-uniq  00 00 0f ee] [AC-cookie  1b f6 af d6 04 88 ff ff]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 48
 dst 70:4f:57:b2:60:be  src cc:2d:e0:11:93:f6
 [host-uniq  00 00 0f ee] [service-name] [AC-name Jaihind online-Attapur] [service-name EXCELL]
Recv PPPOE Discovery V1T1 PADS session 0x8280 length 35
 dst 70:4f:57:b2:60:be  src ac:1f:6b:a4:0b:4c
 [AC-name EXCITEL] [service-name] [host-uniq  00 00 0f ee] [AC-cookie  1b f6 af d6 04 88 ff ff]
PADS: Service-Name: ''
PPP session is 33408
Connected to ac:1f:6b:a4:0b:4c via interface eth0.200
using channel 24
Renamed interface ppp0 to pppoe-wan
Using interface pppoe-wan
Connect: pppoe-wan <--> eth0.200
sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xc1704f23>]
rcvd [LCP ConfAck id=0x1 <mru 1492> <magic 0xc1704f23>]
rcvd [LCP ConfReq id=0x2 <pcomp> <mru 1492> <magic 0x16c0b948> <auth chap MD5>]
sent [LCP ConfRej id=0x2 <pcomp>]
rcvd [LCP ConfReq id=0x3 <mru 1492> <magic 0x16c0b948> <auth chap MD5>]
sent [LCP ConfAck id=0x3 <mru 1492> <magic 0x16c0b948> <auth chap MD5>]
sent [LCP EchoReq id=0x0 magic=0xc1704f23]
rcvd [CHAP Challenge id=0x1 <bb1e685bc8fed7a3f7bf4858ce79cbfcf8bce0bd7e2b78384cfb02bac1>, name = "6wind"]
sent [CHAP Response id=0x1 <bd6574691a8479e6a1daf2cd1601df67>, name = "udaikiran"]
rcvd [LCP EchoRep id=0x0 magic=0x16c0b948]
rcvd [CHAP Success id=0x1 "Welcome"]
CHAP authentication succeeded: Welcome
CHAP authentication succeeded
peer from calling number AC:1F:6B:A4:0B:4C authorized
sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
sent [IPV6CP ConfReq id=0x1 <addr fe80::d512:900e:6d7f:ae4e>]
rcvd [IPCP ConfReq id=0x1 <addr 110.235.224.1>]
sent [IPCP ConfAck id=0x1 <addr 110.235.224.1>]
rcvd [LCP ProtRej id=0x1 80 57 01 01 00 0e 01 0a d5 12 90 0e 6d 7f ae 4e]
Protocol-Reject for 'IPv6 Control Protocol' (0x8057) received
rcvd [IPCP ConfNak id=0x1 <addr 144.48.75.254> <ms-dns1 110.235.231.2> <ms-dns2 110.235.224.1>]
sent [IPCP ConfReq id=0x2 <addr 144.48.75.254> <ms-dns1 110.235.231.2> <ms-dns2 110.235.224.1>]
rcvd [IPCP ConfAck id=0x2 <addr 144.48.75.254> <ms-dns1 110.235.231.2> <ms-dns2 110.235.224.1>]
local  IP address 144.48.75.254
remote IP address 110.235.224.1
primary   DNS address 110.235.231.2
secondary DNS address 110.235.224.1
Script /lib/netifd/ppp-up started (pid 4131)
Script /lib/netifd/ppp-up finished (pid 4131), status = 0x1

And here is the non-working one. 
Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Send PPPOE Discovery V1T1 PADI session 0x0 length 12
 dst ff:ff:ff:ff:ff:ff  src 70:4f:57:b2:5a:ae
 [service-name] [host-uniq  00 00 4f 10]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 46
 dst 70:4f:57:b2:5a:ae  src ac:1f:6b:a4:0b:4c
 [AC-name EXCITEL] [service-name] [service-name excitel] [host-uniq  00 00 4f 10] [AC-cookie  1b f7 05 50 04 88 ff ff]
Send PPPOE Discovery V1T1 PADR session 0x0 length 24
 dst ac:1f:6b:a4:0b:4c  src 70:4f:57:b2:5a:ae
 [service-name] [host-uniq  00 00 4f 10] [AC-cookie  1b f7 05 50 04 88 ff ff]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 46
 dst 70:4f:57:b2:5a:ae  src ac:1f:6b:a4:0b:86
 [AC-name EXCITEL] [service-name] [service-name excitel] [host-uniq  00 00 4f 10] [AC-cookie  1b f6 cf 79 04 88 ff ff]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 48
 dst 70:4f:57:b2:5a:ae  src cc:2d:e0:11:93:f6
 [host-uniq  00 00 4f 10] [service-name] [AC-name Jaihind online-Attapur] [service-name EXCELL]
Recv PPPOE Discovery V1T1 PADS session 0x8343 length 35
 dst 70:4f:57:b2:5a:ae  src ac:1f:6b:a4:0b:4c
 [AC-name EXCITEL] [service-name] [host-uniq  00 00 4f 10] [AC-cookie  1b f7 05 50 04 88 ff ff]
PADS: Service-Name: ''
PPP session is 33603
Connected to ac:1f:6b:a4:0b:4c via interface eth0.200
using channel 184
Renamed interface ppp0 to pppoe-wan
Using interface pppoe-wan
Connect: pppoe-wan <--> eth0.200
sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xfb4c855a>]
rcvd [LCP ConfAck id=0x1 <mru 1492> <magic 0xfb4c855a>]
rcvd [LCP ConfReq id=0x2 <pcomp> <mru 1492> <magic 0xeabe4074> <auth chap MD5>]
sent [LCP ConfRej id=0x2 <pcomp>]
rcvd [LCP ConfReq id=0x3 <mru 1492> <magic 0xeabe4074> <auth chap MD5>]
sent [LCP ConfAck id=0x3 <mru 1492> <magic 0xeabe4074> <auth chap MD5>]
sent [LCP EchoReq id=0x0 magic=0xfb4c855a]
rcvd [CHAP Challenge id=0x1 <bb1e686d4b3b75a5c1879becfd7e5820851bb69732c8600f17aa59ff865da74176eeb77e91a3d01765c2eddb4f>, name = "6wind"]
sent [CHAP Response id=0x1 <a3fdb413a8f170227456a7c15f4b9893>, name = "udaikiran"]
rcvd [LCP EchoRep id=0x0 magic=0xeabe4074]
sent [LCP EchoReq id=0x1 magic=0xfb4c855a]
rcvd [LCP EchoRep id=0x1 magic=0xeabe4074]
sent [LCP EchoReq id=0x2 magic=0xfb4c855a]
rcvd [LCP EchoRep id=0x2 magic=0xeabe4074]
rcvd [CHAP Failure id=0x1 "mac validation failed: c"]
CHAP authentication failed: mac validation failed: c
CHAP authentication failed
sent [LCP TermReq id=0x2 "Failed to authenticate ourselves to peer"]
rcvd [LCP TermReq id=0x4]
sent [LCP TermAck id=0x4]
rcvd [LCP TermAck id=0x5]
Connection terminated.
Send PPPOE Discovery V1T1 PADT session 0x8343 length 20
 dst ac:1f:6b:a4:0b:4c  src 70:4f:57:b2:5a:ae
 [host-uniq  00 00 4f 10] [AC-cookie  1b f7 05 50 04 88 ff ff]
Sent PADT
Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.7
Send PPPOE Discovery V1T1 PADI session 0x0 length 12
 dst ff:ff:ff:ff:ff:ff  src 70:4f:57:b2:5a:ae
 [service-name] [host-uniq  00 00 4f 65]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 46
 dst 70:4f:57:b2:5a:ae  src ac:1f:6b:a4:0b:4c
 [AC-name EXCITEL] [service-name] [service-name excitel] [host-uniq  00 00 4f 65] [AC-cookie  1b f7 05 a6 04 88 ff ff]
Send PPPOE Discovery V1T1 PADR session 0x0 length 24
 dst ac:1f:6b:a4:0b:4c  src 70:4f:57:b2:5a:ae
 [service-name] [host-uniq  00 00 4f 65] [AC-cookie  1b f7 05 a6 04 88 ff ff]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 46
 dst 70:4f:57:b2:5a:ae  src ac:1f:6b:a4:0b:86
 [AC-name EXCITEL] [service-name] [service-name excitel] [host-uniq  00 00 4f 65] [AC-cookie  1b f6 cf d0 04 88 ff ff]
Recv PPPOE Discovery V1T1 PADO session 0x0 length 48
 dst 70:4f:57:b2:5a:ae  src cc:2d:e0:11:93:f6
 [host-uniq  00 00 4f 65] [service-name] [AC-name Jaihind online-Attapur] [service-name EXCELL]
Recv PPPOE Discovery V1T1 PADS session 0x8342 length 35
 dst 70:4f:57:b2:5a:ae  src ac:1f:6b:a4:0b:4c
 [AC-name EXCITEL] [service-name] [host-uniq  00 00 4f 65] [AC-cookie  1b f7 05 a6 04 88 ff ff]
PADS: Service-Name: ''
PPP session is 33602
Connected to ac:1f:6b:a4:0b:4c via interface eth0.200
using channel 185
Renamed interface ppp0 to pppoe-wan
Using interface pppoe-wan
Connect: pppoe-wan <--> eth0.200
sent [LCP ConfReq id=0x1 <mru 1492> <magic 0xf1117b64>]
rcvd [LCP ConfAck id=0x1 <mru 1492> <magic 0xf1117b64>]

For some reason the pppoe wan fails to setup in one device. Please help.

takimata · October 13, 2020, 7:58pm

Seems to me that your ISP either

requires your router to have a certain MAC address, or
requires a bit of waiting until you can authenticate with a different MAC address than previously used

I have seen both.

mk24 · October 13, 2020, 8:24pm

Yes you could clone the first router's MAC into the second one with an option macaddr in the wan section.

Though if this is a permanent replacement it would be better in the long term to get the ISP to accept the MAC of the new router. Completely power down your modem and wait for the network to clear the old connection. In some cases you may have to call them to reassign the MAC.

pluto · October 14, 2020, 8:24am

Changed the MAC address and it worked. Thanks.

tmomas · October 14, 2020, 9:51am

If your problem is solved, please consider marking this topic as [Solved]. See How to mark a topic as [Solved] for a short how-to.

pluto · October 14, 2020, 10:06am

Thanks @tmomas.

takimata · October 14, 2020, 1:50pm

For posterity and the benefit of others having the same problem: What exactly did you change (i.e., did you change the MAC address of the second router to that of the first one, or did you have it changed by the ISP, or did it time out and accepted the new MAC eventually), and, if you are willing to disclose it, what is your ISP?

system · October 24, 2020, 1:50pm

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