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Re: Testing AT&T, so routing setup

Le 05/05/2016 21:05, ken a écrit :


Working on the Pi just from the bash prompt as root, how do I set the
routing table (etc.) to connect directly to the DSL modem?  The routing
table on my router currently shows:

# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
77.219.160.1    0.0.0.0         255.255.255.255 UH 0      0        0 ppp0
192.168.0.0     0.0.0.0         255.255.255.0   U 0      0        0 br0
169.254.0.0     0.0.0.0         255.255.0.0     U 0      0        0 br0
127.0.0.0       0.0.0.0         255.0.0.0       U 0      0        0 lo
0.0.0.0         77.219.160.1    0.0.0.0         UG 0      0        0 ppp0

Here's the Pi's current routing table:

Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
0.0.0.0         192.168.0.1     0.0.0.0         UG    0 0        0 eth0
10.10.0.0       0.0.0.0         255.255.255.0   U     0 0        0 wlan0
192.168.0.0     0.0.0.0         255.255.255.0   U     0 0        0 eth0

To plug the Pi directly into the modem, I think I'm going to need to run
ppp and then run some commands to temporarily set the IP address of the
ethernet port (eth0) and the routing table.  I much prefer to do all
this without changing config files so that when I reboot the Pi, the
settings go back to their original.  What do I need to 'apt-get' for the
ppp executables?


The interface type is PPP so you need the package "ppp" providing pppd.
The DSL provider probably uses PPP over Ethernet (PPPoE). You can check on your router. pppd can handle PPPoE direclty through a plugin and a kernel module or in userland though the package "pppoe" (more overhead and more options). The extra package "pppoeconf" eases the creation of a PPPoE configuration file in /etc/ppp/peers. Once created, the connection can be started and stopped manually with "pon" and "poff".
Some DSL providers may use the PPTP protocol instead. Then you need the package "pptp-linux". 


And... I'm more accustomed to using the 'route'
command to manually set up a routing table, but have used 'ip' commands
too, if that's more familiar to you.
You should not need to issue any commands. Just make sure the PPP config file has the options "defaultroute" to set the default route through the PPP connection and "replacedefaultroute" to override the existing default route.
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