caan you ping the outside world from the router machine? What is the output
from the following commands:
/sbin/ifconfig
/sbin/route
/sbin/ipchains -L (just the masq rules)
With this info we should be better able to help.
Drew
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tanner, Robby
Sent: Wednesday, January 24, 2001 2:40 PM
To: '[EMAIL PROTECTED]'
Subject: RE: More Firewall Problems
Wait a minute, I think I failed to mention that I am connected via cable
modem to the internet, so my default gateway on the Linux box is
24.68.176.1, while for the LAN it is 204.112.40.3. Does this change things?
My "external" card is not directly connected to the internet, but is routed
through the above mentioned gateway (x.x.x.1). So again,
Internet gateway: 24.68.176.1/24 (connected directly to external Linux box
card 24.68.176.193/24).
Internal adapter address: 204.112.40.3/24
> -----Original Message-----
> From: Heman Leopando [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 24, 2001 3:25 PM
> To: [EMAIL PROTECTED]
> Subject: RE: More Firewall Problems
>
>
> add masquerade rules
>
> example:
>
> ipchains -A forward -b -j MASQ -s 0/0 -d 204.112.40.0/24
>
>
> > Chain input (policy ACCEPT):
> > Chain forward (policy ACCEPT):
> > Chain output (policy ACCEPT):
> >
> > I am unable, however, to ping the default gateway for the
> > external card
> > (24.68.176.1)
>
> that router is set to drop ICMP packets or deny ICMP echo
>
> > or reach any part of the internet from any
> > computer other than
> > the firewall.
>
> masquerade rule?
>
> > >
> > > If you turn off ip forwarding, you won't be able use IP
> > > masquerading. Your
> > > firewall is simply dropping all these packets it is
> > > receiving, since they
> > > aren't addressed to one of 127.0.0.0/24.68.176.193/204.112.40.3
> > >
> > > John
> > >
>
> Heman
>
>
>
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