>> Date: Sun, 20 Sep 2015 23:52:32 +0300 >> Subject: Re: [OpenWrt-Devel] [PATCH] comgt-ncm: Add possibility to >> choose PDP context type >> From: sami at olmari.fi >> To: malaakso at elisanet.fi >> CC: openwrt-devel at lists.openwrt.org >> >> This is not working with Huawei E3276, only "option pdptype 'IP' works, >> IPV6 and IPV4V6... I do not have IPv6 offered from ISP currently, >> should it matter. At attachment there is clips from the log using each >> option type, most important clip here, same for IPV4V6 (aka no option >> set): >> >> Sun Sep 20 20:32:10 2015 daemon.notice netifd: wan (2935): sending -> >> AT+CGDCONT=1,"IPV6","opengate" >> Sun Sep 20 20:32:11 2015 daemon.notice netifd: wan (2935): Error >> running AT-command >> Sun Sep 20 20:32:11 2015 daemon.notice netifd: wan (2935): Failed to >> initialize modem >> >> There is also some random other errors seen on log on _working_ >> connection, I don't know do they bear any importance, as system works. >> Anything I could do to make it work so that it wouldn't at least fail? >> >> Sami Olmari >> >> P.S. I've updated wiki with this new option information :) >> > > Hi, > > If you don't have IPv6 from your ISP, then that is expected. That doesn't change > the fact that my patch does introduce a regression for those without IPv6, them > having to manually disable it (setting ipv6 to 0 selects "IP" by default). I'll have to > think the defaults through again, most likely changing PDP type "IP" to be the > default unless IPv6 is explicitely _enabled_. > > Thanks for reporting! > > Matti > > Hi there! > > I noticed this regression today after upgrading to trunk. I don't think > this is the complete answer though. > > I have the same E3276 dongle and I *do* have IPv6 from my ISP (Tele2, > Sweden). The same SIM-card in a B593s-22 router gets me a native IPv6 > connection. > > I see the exact same error in the logs and I've verified that E3276 doesn't > accept IPV6 (or IPV4V6, or ... ) as the second parameter by manually echo > -e 'AT+CGDCONT=1,"IPV6","internet.tele2.se",""\r' > /dev/cdc-wdm0. Only > "IP" works. > > Is the AT+CGDCONT command the correct way to select the PDP type on Huawei > NCM dongles? What info is that based on? > > If there's something you want me to try, just shout. > > /Andreas
Hi Andreas, You could try to change the PDP context number from 1 to something else, e.g., 2, 3 or even higher. It is the first number in the AT+CGDCONT and AT^NDISDUP commands. Change it in all of them in ncm.json. Command AT+CGDCONT? should show all the profiles from the SIM, and they may be locked. AT+CGDCONT is standardized by 3GPP, and should work in all dongles accepting AT-commands. Maybe your B593 also shows the existing profiles and their types in the web UI? Matti _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
