52 lines
2.1 KiB
Plaintext
52 lines
2.1 KiB
Plaintext
From: Marek Michalkiewicz <marekm@linux.org.pl>
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To: Debian Bug Tracking System <submit@bugs.debian.org>
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Subject: Bug#85426: default route uses wrong interface with the same IP address
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Package: ppp
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Version: 2.4.0f-1
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Severity: wishlist
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The pppd "defaultroute" option, when the ppp0 interface comes up, seems
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to do the equivalent of "route add default gw $ip_address", and I think
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it should do the equivalent of "route add default dev ppp0" instead.
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In most normal cases this shouldn't matter (because each interface has
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its own unique IP address), but specifying the interface by name (not
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by its IP address) may be preferable if there is more than one interface
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with the same IP address.
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I have a dummy0 interface with the same IP address as that of ppp0.
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This makes it possible to connect to the box from the internal LAN
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using its normal hostname (even if ppp0 is down at the moment), and
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to run named (possibly started before ppp0 comes up) as non-root.
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Using the "defaultroute" option causes pppd to set up the default route
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via dummy0 (first device found with matching IP address), not ppp0.
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I've worked around this by disabling the pppd defaultroute option and
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creating a small shell script called /etc/ppp/ip-up.d/000defaultroute
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(run before 00ipmasq) with the following contents:
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#! /bin/sh
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set -e
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/sbin/route add default dev $PPP_IFACE
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This gets the default route right (no corresponding ip-down script is
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necessary - when ppp0 goes down, the route is removed automatically).
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Please consider at least documenting this workaround, as I think it
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may be useful to someone.
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Thanks,
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Marek
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-- System Information
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Debian Release: testing/unstable
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Architecture: i386
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Kernel: Linux alf 2.2.19pre7 #1 Sat Jan 27 15:26:41 CET 2001 i586
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Versions of packages ppp depends on:
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ii libc6 2.2.1-1 GNU C Library: Shared libraries an
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ii libpam-modules 0.72-12 Pluggable Authentication Modules f
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ii libpam0g 0.72-12 Pluggable Authentication Modules l
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ii netbase 4.05 Basic TCP/IP networking system
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ii sysvinit 2.78-4 System-V like init.
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