Re: Unknown problem connecting
On Wed, Apr 05, 2000 at 07:11:16AM -0400, J. Hartzelbuck wrote:
> Using Debian, I've installed wvdial and can connect very nicely, but
> commands issued don't do anything! Ping doesn't respond, lynx doesn't
> respond. I'm new to all this, so don't know where I might be going
> wrong. Can anyone give any pointers?
(Hi, Chris.) I think you're saying you've made a modem connection to
Internet using wvdial, but then can't get any further?
Do you have a ppp connection established? Is there a default route?
netstat -r
...should show 'default' and 'ppp0', if so.
Do you have ip_forwarding turned 'on'? Try:
cat /proc/sys/net/ipv4/ip_forward
...and you should get a result of '1'; if you don't, do:
echo "1" > /proc/sys/net/ipv4/ip_forward
...and that'll put it there. Do you have "policy" rules that are set
to reject packets moving in or out of your own system? Do:
ipchains -L
...to find out; if the 3 groups, "input", "output" and "forward" all
show a policy of "reject" (which is their default), you'll wanna change
that. If you're running a standalone system, you probably can do
blanket 'accept' statements and not be leaving your system open to
attack from "the outside world":
ipchains -P input ACCEPT
ipchains -P output ACCEPT
ipchains -P forward ACCEPT
...will do that; it's likely you'll need to do that again, next time
you reboot.
And that's about -all- I know about this. :-) If there are finer
points to it that should be added, maybe someone else will join in here
and let us know...?
--
-- Jeff -- <http://www.wellnow.com>
"There's nothing left in the world to prove. All that's worth doing
is to love one another, using whatever means are available to serve."
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