From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============3765356699535265055==" MIME-Version: 1.0 From: Denis Kenzior Subject: Re: ofono and connecting to an APN Date: Thu, 08 Nov 2012 08:15:17 -0600 Message-ID: <509BBE75.60308@gmail.com> In-Reply-To: List-Id: To: ofono@ofono.org --===============3765356699535265055== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi Jan, > Just one additional question here > > $ ./test/process-context-settings > Configuring /telit2_0/context1 > Interface is ppp0 > IP address is 10.9.8.171 > Gateway is 0.0.0.0 > Nameserver is 10.168.38.53 > Nameserver is 10.168.38.53 > route: SIOCADDRT: File exists > > > Where these settings (addresses) come from (dhcp?), and why there is no > correct gateway? I'm also wondering if these commands are connecting > through GPRS or through 3G if I have 3G modem. There is no DHCP in GSM. The settings are obtained via underlying = network to mobile signaling. How they are provided to the telephony = stack varies. In the case of PPP it is done via IPCP. Some modems fake = a DHCP server in their firmware, and some provide the settings via AT = commands. There is no gateway because the link is point-to-point, it isn't necessary. For your question regarding GPRS vs 3G. The commands used are the same. = The modem capability and network availability will determine the = technology used. Really the only difference will be the speed you = connect at. PPP is too slow for true 3G speeds. This is why most modem = manufacturers have switched to high-speed interfaces (e.g. faked = ethernet) or other special extensions. Regards, -Denis > > best regards > Jan > _______________________________________________ > ofono mailing list > ofono(a)ofono.org > http://lists.ofono.org/listinfo/ofono --===============3765356699535265055==--