Hi!
I have a couple of problems...
I have this setup:
ISP
| isdn
___+____
| Router | 181.100.100.100
|
|
___+___ 181.100.100.99 ___________
| Linux |-----------------modem----| PPP Win95 | 10.0.0.10
| 10.0.0.1
| ____________
+-----| NT4 server | 10.0.0.2
| _______
+-----| Win95 | 10.0.0.3
| _______
+-----| Win95 | 10.0.0.4
ifconfig eth0 10.0.0.1 nm 255.255.255.0
ifconfig eth1 181.100.100.100 nm 255.255.0.0
route add -net 10.0.0.0 nm 255.255.255.0 dev eth0
route add -net 181.100.0.0 nm 255.255.0.0 dev eth1
route add default gw 181.100.100.99 nm 255.255.0.0
Doing:
ipfwadm -F -a m -S 10.0.0.0/24 -D 0.0.0.0
makes the WinX machines as well as ppp-connected ping, http, telnet etc,
the Internet through the router OK.
BUT, when a WinX uses NetBeui/NetBIOS, their broadcasts goes out to the router.
I do not want to forward/masquerade NetBeui/NetBIOS traffic.
The router uses ISDN an it cost everytime it connects, just to find out
that NetBxxx is not served by the ISP...!
Tried:
ipfwadm -F -a deny -P tcp -S 0.0.0.0/0 137:139
ipfwadm -F -a deny -P udp -S 0.0.0.0/0 137:139
or
ipfwadm -F -a deny -P tcp -S 10.0.0.0/24 -D 0.0.0.0/0 137:139
ipfwadm -F -a deny -P udp -S 10.0.0.0/24 -D 0.0.0.0/0 137:139
and some others, but still, linux forwards it..
Also tried the -O and -I rules but I can't get it right..
-------------------
Another question:
How can I let Windows connected through modem/ppp access the NetBeui/NetBIOS
functions on the network?
I run samba, and accessing the linux shares through ppp works fine,
but the other shares on the network on the nw cannot be seen..
And I cannot "Logon to NT domain" either..
Can 'ipfwadm' help me with this?
------------------
Is there any other ipfwadm doc's than the HOWTO and the man pages?
(Well this list of course.. ;)
Martin/
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