ppp addresses and routing table

From: Bernd Prager (bernd_at_prager.ws)
Date: 06/30/05

  • Next message: Ryan Schultz: "Re: LDAP with Kerberos authentification" 
    Date: Thu, 30 Jun 2005 16:40:46 -0400
To: "debian-user@lists.debian.org" <debian-user@lists.debian.org>

    I'm experiencing some trouble with my DSL setup.
    Every time after reboot my routing table is using my ppp0 P-t-P address
    instead of its inet address.

    $ ifconfig ppp0
    ppp0 Link encap:Point-to-Point Protocol
              inet addr:168.100.249.107 P-t-P:168.100.250.1
    Mask:255.255.255.255
              UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1
              RX packets:278715 errors:0 dropped:0 overruns:0 frame:0
              TX packets:280248 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:3
              RX bytes:155755125 (148.5 MiB) TX bytes:67529994 (64.4 MiB)

    $ route -e
    Kernel IP routing table
    Destination Gateway Genmask Flags MSS Window irtt
    Iface
    168.100.250.1 * 255.255.255.255 UH 0 0 0 ppp0
    192.168.2.0 * 255.255.255.0 U 0 0 0
    eth0
    192.168.1.0 * 255.255.255.0 U 0 0 0
    eth1
    default 168.100.250.1 0.0.0.0 UG 0 0 0 ppp0

    I'm not getting any Internet connection by using the P-t-P address.
    Only after I delete PPP0 and default gateway route and change them
    manually to the PPP0 inet address I get the desired connection.

    When I change the routing addresses from 168.100.250.1 to
    168.100.249.107 I get:

    $ route -e
    Kernel IP routing table
    Destination Gateway Genmask Flags MSS Window irtt
    Iface
    249-107.custome * 255.255.255.255 UH 0 0 0
    ppp0
    192.168.2.0 * 255.255.255.0 U 0 0 0
    eth0
    192.168.1.0 * 255.255.255.0 U 0 0 0
    eth1
    default 249-107.custome 0.0.0.0 UG 0 0 0
    ppp0

    And everything works fine from here.

    Is there something with my configuration messed up and I should get a
    proper connection through the P-t-P address?
    Or is there a way to tell my system it should use the external address
    instead?

    Thanks for any help,
    -- Bernd 

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