Dial on demand not working when ipmasq installed
I am trying to set up dial on demand for dsl on a box that is meant to
run as router for a masqueraded home-network. I am using debian/sid wich
is up to date.
I set up the dsl connection with pppoeconf, which worked fine. In
/etc/ppp/peers/dsl-provider I uncommented "demand" and "idle 300" and
commented out the "usepeerdns"-part as I entered my ISP's dns servers
manually in /etc/reslov.conf
When I now start up ppp by "/etc/init.d/ppp start" the interface ppp is
brought up and - as expected - the dsl-connection is not established
yet. When I try a ping to my ISP "ping www.t-online.de" the connection
is established, the pings comes through and answers. Now problem.
Now I installed ipmasq to make the connection available to the computers
in the LAN. After restarting ppp and trying the same ping command I got
"unknown host: www.t-online.de" as error message. Allthough both
dns-servers of my ISP are still present in /etc/resolv.conf
I did a dpkg-reconfigure ipmasq and set it up to be started _after_ all
network services have been started. Before it was set up to start after
network interfaces were up.
Again I did a restart on ppp and ipmasq and tried the ping command.
Directly after restarting both ppp and ipmasq the ping causes the
dsl-connection to be established and masquerading seems to work. But: I
wanted to see if dial on demand still works after the idle time expired
and the connection was hung up, so I again tried "/etc/init.d/ppp
restart" and then the ping command again. Result: NO CONNECTION is being
established, instead I get the error message: "ping: operation not
I googled around and found that this seems to be caused by a
missconfigured firewall. But I have not changed anything in the ipmasq
settings. The only hint I got on IRC was to set up masquerading manually
with iptables and get rid of the ipmasq-package. But that does not seem
to be the ultimate solution ;-(
Can anyone help me please? I need to get this working with dial on
demand. What is the problem with ipmasq that dial on demand does not
work reliably any more?
Help would be appreciated.
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