> Hi,
>
> We are using atmodem plugin and are trying to get the PPP up and
> running. I am able to create and activate context, but the PPP link
> establishment seems to have issues.
>
> The list-context script returns:
>
> [ /generic ]
> [ /generic/primarycontext3 ]
> Username =
> Name = Internet access
> Settings = { Interface=ppp0 Netmask=255.255.255.255
> Method=static DomainNameServers=192.89.123.231,192.89.123.230,
> Address=109.240.91.14 }
> Active = 1
> AccessPointName = internet
> Password =
> Type = internet
>
> But for a PPP link, there needs to be two ip addresses, one local and
> one of the peer. Here in the settings you see only one IP address.
>
> I collected the logs during the PPP link establishment, (frames and a
> brief detail about it)
>
> Sent from Ofono:
> Frame: 0x7e 0xff 0x7d 0x23 0xc0 0x21 0x7d 0x21 0x7d 0x21 0x7d 0x20
> 0x7d 0x2a 0x7d 0x22 0x7d 0x26 0x7d 0x20 0x7d 0x20 0x7d 0x20 0x7d 0x20
> 0x58 0x7b 0x7e
> 03 c021 1 (conf req) 1 (id) 0x000a (length) 2 (accm) 6 (length) 0000
> fcs
>
> Recv from Modem:
> Frame: 0x7e 0xff 0x7d 0x23 0xc0 0x21 0x7d 0x21 0x7d 0x21 0x7d 0x20
> 0x7d 0x34 0x7d 0x22 0x7d 0x26 0x7d 0x20 0x7d 0x20 0x7d 0x20 0x7d 0x20
> 0x7d 0x25 0x7d 0x26 0xd2 0x8a 0xde 0xd2 0x7d 0x27 0x7d 0x22 0x7d 0x28
> 0x7d 0x22 0xbf 0x7d 0x35 0x7e
> 3 c021 1 (conf req) 1 (id) 0x0034 2 6 0 0 0 0 5(magic num) 6 d2 8a de
> d2 7(protocol compression) 2 (id) 8 (addr, control compres) 2 fcs
>
>
> Frame: 0x7e 0xff 0x7d 0x23 0xc0 0x21 0x7d 0x22 0x7d 0x21 0x7d 0x20
> 0x7d 0x2a 0x7d 0x22 0x7d 0x26 0x7d 0x20 0x7d 0x20 0x7d 0x20 0x7d 0x20
> 0x31 0x7d 0x2f 0x7e
> 3 c021 2 (conf ack) 1 (id) 0x000a 2 6 0 0 0 0 fcs
>
> Sent from ofono:
> Frame: 0x7e 0xff 0x7d 0x23 0xc0 0x21 0x7d 0x22 0x7d 0x21 0x7d 0x20
> 0x7d 0x34 0x7d 0x22 0x7d 0x26 0x7d 0x20 0x7d 0x20 0x7d 0x20 0x7d 0x20
> 0x7d 0x25 0x7d 0x26 0xd2 0x8a 0xde 0xd2 0x7d 0x27 0x7d 0x22 0x7d 0x28
> 0x7d 0x22 0x54 0x7c 0x7e
> 3 c021 2 (conf ack) 1 0x0034 2 6 0000 5 6 d2 8a de d2 7 2 8 2 fcs
>
>
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x1 0x1 0x0 0x22 0x3 0x6 0x0 0x0 0x0
> 0x0 0x81 0x6 0x0 0x0 0x0 0x0 0x83 0x6 0x0 0x0 0x0 0x0 0x82 0x6 0x0 0x0
> 0x0 0x0 0x84 0x6 0x0 0x0 0x0 0x0 0x80 0x52 0x7e
> 3 8021 1 (conf req) 1 (id) 0x0022 (length) 3 (ip) 6 0000 81(dns1) 6
> 0000 83(nbns1) 6 0000 82(dns2) 6 0000 84 (nbns2) 6 0000 fcs
>
> Recv from Modem:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x3 0x1 0x0 0x10 0x81 0x6 0xa 0xb 0xc
> 0xd 0x83 0x6 0xa 0xb 0xc 0xe 0x4d 0x4d 0x7e
> 3 8021 3(conf nak) 1 (id) 0x010 81 (dns1) 6 abcd 83 (dns2) 6 abce fcs
>
> Sent from ofono:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x1 0x2 0x0 0x22 0x3 0x6 0x0 0x0 0x0
> 0x0 0x81 0x6 0xa 0xb 0xc 0xd 0x83 0x6 0xa 0xb 0xc 0xe 0x82 0x6 0x0 0x0
> 0x0 0x0 0x84 0x6 0x0 0x0 0x0 0x0 0xad 0x7a 0x7e
> 3 8021 1 (conf ack) 2 (id) 0x0022 3 6 0000 81 6 abcd 83 6 abce 82 6
> 0000 84 6 0000 fcs
>
> Recv from Modem:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x3 0x2 0x0 0x10 0x81 0x6 0xa 0xb 0xc
> 0xd 0x83 0x6 0xa 0xb 0xc 0xe 0x33 0x95 0x7e
> 3 8021 3(conf nak) 2 (id) 0x010 81 (dns1) 6 abcd 83 (dns2) 6 abce fcs
>
> Sent from ofono:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x1 0x3 0x0 0x22 0x3 0x6 0x0 0x0 0x0
> 0x0 0x81 0x6 0xa 0xb 0xc 0xd 0x83 0x6 0xa 0xb 0xc 0xe 0x82 0x6 0x0 0x0
> 0x0 0x0 0x84 0x6 0x0 0x0 0x0 0x0 0xce 0x3a 0x7e
> 3 8021 1 (conf req) 3 (id) 0x0022 3 6 0000 81 6 abcd 83 6 abce 82 6
> 0000 84 6 0000 fcs
>
> Recv from Modem:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x1 0x1 0x0 0x4 0x0 0xb7 0x7e
> 3 8021 1 (conf req) 1 (id) 0 4 0 fcs
>
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x4 0x3 0x0 0x10 0x82 0x6 0x0 0x0 0x0
> 0x0 0x84 0x6 0x0 0x0 0x0 0x0 0x34 0xcc 0x7e
> 3 8021 4 (conf reject) 3(id) 0x0010 82 6 0000 84 6 0000 fcs
>
> Sent from ofono:
> Frame: 0xff 0x3 0x80 0x21 0x2 0x1 0x0 0x4 0xcd 0x92 0x7e
> 3 8021 2 (conf ack) 1 (id) 0 4
>
> Frame: 0xff 0x3 0x80 0x21 0x1 0x4 0x0 0x16 0x3 0x6 0x0 0x0 0x0 0x0
> 0x81 0x6 0xa 0xb 0xc 0xd 0x83 0x6 0xa 0xb 0xc 0xe 0xe3 0x9 0x7e
> 3 8021 1 (conf req) 4 (id) 0x0016 3 6 0000 81 6 abcd 83 6 abce fcs
>
> Recv from modem:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x3 0x4 0x0 0x16 0x3 0x6 0x6d 0xf0 0x40
> 0xbe 0x81 0x6 0xc0 0x59 0x7b 0xe7 0x83 0x6 0xc0 0x59 0x7b 0xe6 0xc5
> 0xf1 0x7e
> 3 8021 3 (conf nak) 4 (id) 0x0016 3 (ip) 6 6d f0 40 be 81 (dns1) 6 c0
> 59 7b e7 83 (dns2) 6 c0 59 7b e6 fcs
>
> Sent from ofono:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x1 0x5 0x0 0x16 0x3 0x6 0x6d 0xf0 0x40
> 0xbe 0x81 0x6 0xc0 0x59 0x7b 0xe7 0x83 0x6 0xc0 0x59 0x7b 0xe6 0x2
> 0x9c 0x7e
> 3 8021 1 (conf req) 5 (id) 0x0016 3 6 6d f0 40 be 81 6 c0 59 7b e7 83
> 6 c0 59 7b e6 fcs
>
> Recv from Modem:
> Frame: 0x7e 0xff 0x3 0x80 0x21 0x2 0x5 0x0 0x16 0x3 0x6 0x6d 0xf0 0x40
> 0xbe 0x81 0x6 0xc0 0x59 0x7b 0xe7 0x83 0x6 0xc0 0x59 0x7b 0xe6 0xf4
> 0x6f 0x7e
> 3 8021 2 (conf ack) 5 (id) 0x0016 3 6 6d f0 40 be 81 6 c0 59 7b e7 83
> 6 c0 59 7b e6 fcs
>
> I could not find any issues in the state transition w.r.t the RFC, but
> I get only one IP address, what is going wrong? Could any one help?
>
>
> ----------------------------------------------------------------------
> -----------------------
>
> Regards
> Arun Ravindran
> Specialist, Elektrobit OYJ
> Keilasatama 5, Espoo
> M: +358403445507
>
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