On 9.12.2020 02:33, Chris Narkiewicz wrote:
> I'm trying to establish VDSL connection using an ECI modem over PPPoE.
> I'm running OpenBSD 6.8 on APU board from PC Engines.
>
> Relevant inerface configuration:
> /etc/hostname.em0
> up
>
> /etc/hostname.pppoe0
> inet 0.0.0.0 255.255.255.255 NONE
> mtu 1492
> pppoedev em0
> authproto chap
> authname 'my login'
> authkey 'my password'
> peerproto chap
> peerflag callin
> up
> dest 0.0.0.1
>
>
> When I bring the interface up, I can see that it authenticates
> (tcpdump output is long so I put it below). I can observe that
> it authenticates and receives an IP address from the network ISP.
>
> However, when I check the interface, it does not set new IP and it is
> stuck with "no carrier"::
>
> pppoe0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1492
> index 15 priority 0 llprio 3
> dev: em0 state: initial
> sid: 0x0 PADI retries: 0 PADR retries: 0
> groups: pppoe
> status: no carrier
> inet 0.0.0.1 --> 0.0.0.0 netmask 0xff000000
>
>
> How can I further investigate this issue? I'm a bit out of ideas.
>
You can try to enable debug output in ifconfig(8) if that will provide
more info.
As well pppoe section example shows addition of default routes.
Did you try with those lines if there will be change?
>
> Cheers,
> KN
>
> Here is the output from tcpdump -i em0, showing the exchange between
> my APU board and ECI VDSL modem.
>
> tcpdump: listening on em0, link-type EN10MB
> 01:19:24.111229 PPPoE-Discovery
> code Initiation, version 1, type 1, id 0x0000, length 12
> tag Service-Name, length 0
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.117698 PPPoE-Discovery
> code Initiation, version 1, type 1, id 0x0000, length 12
> tag Service-Name, length 0
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.122470 PPPoE-Discovery
> code Offer, version 1, type 1, id 0x0000, length 47
> tag Service-Name, length 0
> tag AC-Name, length 11 acc-aln4.fb
> tag Host-Uniq, length 4 #\324\311\274
> tag AC-Cookie, length 16
> 8\236\305\331\324?\035s\227\256\274\320\373\012\374h
> 01:19:24.122653 PPPoE-Discovery
> code Request, version 1, type 1, id 0x0000, length 32
> tag Service-Name, length 0
> tag AC-Cookie, length 16
> 8\236\305\331\324?\035s\227\256\274\320\373\012\374h
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.123960 PPPoE-Discovery
> code Initiation, version 1, type 1, id 0x0000, length 12
> tag Service-Name, length 0
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.130257 PPPoE-Discovery
> code Initiation, version 1, type 1, id 0x0000, length 12
> tag Service-Name, length 0
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.145508 PPPoE-Discovery
> code Offer, version 1, type 1, id 0x0000, length 47
> tag Service-Name, length 0
> tag AC-Name, length 11 acc-aln4.fb
> tag Host-Uniq, length 4 #\324\311\274
> tag AC-Cookie, length 16
> 8\236\305\331\324?\035s\227\256\274\320\373\012\374h
> 01:19:24.145724 PPPoE-Discovery
> code Request, version 1, type 1, id 0x0000, length 32
> tag Service-Name, length 0
> tag AC-Cookie, length 16
> 8\236\305\331\324?\035s\227\256\274\320\373\012\374h
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.149589 PPPoE-Discovery
> code Confirm, version 1, type 1, id 0x144e, length 12
> tag Service-Name, length 0
> tag Host-Uniq, length 4 #\324\311\274
> 01:19:24.149639 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 16
> LCP Configure-Request Id=0x01: Magic-Number=2012867662
> Max-Rx-Unit=1492
> 01:19:24.185026 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 21
> LCP Configure-Request Id=0x1f: Max-Rx-Unit=1492 Auth-Prot=CHAP/MD5
> Magic-Number=538534638
> 01:19:24.185062 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 21
> LCP Configure-Ack Id=0x1f: Max-Rx-Unit=1492 Auth-Prot=CHAP/MD5
> Magic-Number=538534638
> 01:19:24.185167 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 16
> LCP Configure-Ack Id=0x01: Magic-Number=2012867662 Max-Rx-Unit=1492
> 01:19:24.188465 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 64
> CHAP Challenge Id=0x01:
> Value=706d4498c8643102f0a75b6e8b352fcfa2fa51bd8ccd9177de4ca5a23a29aa2a966e425fd373e1441c3d32a7f161
> Name=acc-aln4.fb
> 01:19:24.188546 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 44
> CHAP Response Id=0x01: Value=803993c026af19d16f54c02c499865c0
> Name=<***MY LOGIN***>
> 01:19:24.232859 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 33
> CHAP Success Id=0x01: Message=CHAP authentication success
> 01:19:24.233293 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 6
> LCP Terminate-Request Id=0x02:
> 01:19:24.233726 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 12
> IPCP Configure-Request Id=0xfe: IP-Address=<IP ADDRESS FROM ISP>
> 01:19:24.236687 PPPoE-Session
> code Session, version 1, type 1, id 0x144e, length 6
> LCP Terminate-Ack Id=0x02:
> 01:19:24.252350 PPPoE-Discovery
> code Terminate, version 1, type 1, id 0x144e, length 0
> 01:19:24.262382 PPPoE-Discovery
> code Terminate, version 1, type 1, id 0x144e, length 0
>
>
>
> Best regards,
> Chris Narkiewicz
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