3G/MPD5 ppp connection is failing to negotiate

maldex

Hi there

I just spend a weekend trying to get PPP working with a Huawei E352, and it looks like MPD can't negotiate…


        ppp: process 5468 started, version 5.5 (root@FreeBSD_8.0_pfSense_2.0-snaps.pfsense.org 10:25 12-Oct-2011)
        ppp: web: web is not running
        ppp: [opt4] Bundle: Interface ng0 created
        ppp: [opt4_link0] Link: OPEN event
        ppp: [opt4_link0] LCP: Open event
        ppp: [opt4_link0] LCP: state change Initial --> Starting
        ppp: [opt4_link0] LCP: LayerStart
        ppp: [opt4_link0] chat: Detected Hayes compatible modem.
        ppp: [opt4_link0] chat: Dialing server at *99#...
        ppp: [opt4_link0] chat: Connected at 14400000.
        ppp: [opt4_link0] MODEM: chat script succeeded
        ppp: [opt4_link0] Link: UP event
        ppp: [opt4_link0] LCP: Up event
        ppp: [opt4_link0] LCP: state change Starting --> Req-Sent
        ppp: [opt4_link0] LCP: SendConfigReq #1
        ppp: [opt4_link0] ACFCOMP
        ppp: [opt4_link0] PROTOCOMP
        ppp: [opt4_link0] ACCMAP 0x000a0000
        ppp: [opt4_link0] MRU 1500
        ppp: [opt4_link0] MAGICNUM 1bf6da0c
        ppp: [opt4_link0] LCP: SendConfigReq #2
...
        ppp: [opt4_link0] LCP: SendConfigReq #20
        ppp: [opt4_link0] ACFCOMP
        ppp: [opt4_link0] PROTOCOMP
        ppp: [opt4_link0] ACCMAP 0x000a0000
        ppp: [opt4_link0] MRU 1500
        ppp: [opt4_link0] MAGICNUM 333ef3a4
        ppp: [opt4_link0] LCP: parameter negotiation failed
        ppp: [opt4_link0] LCP: state change Req-Sent --> Stopped
        ppp: [opt4_link0] LCP: LayerFinish
        ppp: [opt4_link0] Link: DOWN event
        ppp: [opt4_link0] LCP: Down event

what i did so far:

configured /dev/cuaU0.3 as ppp according to the pfsense docs.
removed PIN as the ModemChat will fail with PIN (AT+CLCK="SC",0,"1234").
tried to remove CHAP and EAP auth protocols as these might cause problems with certain providers.
tried to mode switch with ATV1E0, but this seems not required on this particular stick.
dialing any other number like ATDT00123546 works and goes up to No Carrier (expected, confirms the stick is network connected)
manually dialing *99# goes till Connect, but i don't get a single byte back from the provider, is this normal?

so what i understand is that the Modem/dial/AT chat is fine, but actually talking to the provider fails?

Fortunately i had two different providers at hand (Switzerland, Swisscom and Orange), APN and Proivder details are multi-times crosscecked and sure right.
Interessting, the current pfsense 2.0.1 (mpd 5.5) and a recent 2.1-DEVEL (mpd 5.6) show the exact same behaviour, on both providers. Alix hardware should not be worth to mention?

Since the same E352 connects just fine with Windows or Linux/NetworkManager i've to assume it's a mpd5 problem …

any input?

cheers & thx

maldex

Just tried a Huawei K3715 with Swisscom. Same behaviour again, keeps trying to negotiate and fails eventually.

maldex

Got it: set any username and password in the ppp connections, just don't leave the fields empty.
leaving the fields empty fails ppp, but if i set any password and username, it works.

took me quite a while to figure :(

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