PPP Configure for Embedded Linux Platfrom - 32 Bit ARM

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The following steps for compile and configure the PPP(Point to point Protocol) for 32 bit Embedded Platform

• Host platform - Ubuntu 16.04
• Target Platform - TI Am335x Eval Board
• Network Platform - Ublox 3G Modem for
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Step 1:

Download the PPP from here,

http://samba.org/ftp/ppp/ppp-2.4.4.tar.gz or Find the tar ball in Archive folder

Step 2:

Configure the PPP

./configure --target=arm-linux --enable-arm --prefix=/usr/local/arm/3.3.2/arm-linux/ make CC=/usr/local/arm/3.3.2/bin/arm-linux-gcc make DESTDIR=pwd/../ppp_struct install

Step 3:

Compile the PPP in host with cross compilation tool

export CROSS_COMPILE=arm-linux-gnueabihf-gc export ARCH=arm export PATH=/home/Durai/ti-sdk-am335x-evm-06.00.00.00/linux-devkit/sysroots/i686-arago-linux/usr/bin:$PATH make

Afte successfully compile two binary will be generated

pppd in /pppd dir chat in /chat dir

Step 4:

Copy the pppd and chat into target board rootfs /usr/sbin and change the permission with chmod 777 pppd chat copy the pon and poff from /script to target board rootfs /usr/sbin

#step 5:

copy the ppp dir from /SDcardBackup/PPP/ to rootfs /etc

Step 6:

in board linux prompt do the following action

root@am335x-evm://# pon

wait for sometime and check modem is conected by using ifconfig

root@am335x-evm://# ifconfig
eth0 Link encap:Ethernet HWaddr 00:18:31:E2:58:6C
UP BROADCAST ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:560 (560.0 B) TX bytes:560 (560.0 B)

ppp0 Link encap:Point-to-Point Protocol
inet addr:100.74.8.109 P-t-P:100.74.8.109 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:5 errors:0 dropped:0 overruns:0 frame:0
TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:44 (44.0 B) TX bytes:87 (87.0 B)

Check the ppp0 was populated with ip address

Step 7:

Add the ppp ip into kernel route map root@am335x-evm://# ip route add 100.74.8.109 dev ppp0 root@am335x-evm://# route add default gw 100.74.8.109 ppp0

Step 8:

The PPP0 should be added to route table and as default

root@am335x-evm://# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 100.74.8.109 0.0.0.0 UG 0 0 0 ppp0
100.74.8.109 * 255.255.255.255 UH 0 0 0 ppp0

Step 9:

Ping the WWW.google.com or google ip address root@am335x-evm://# ping 173.194.70.147