A Challenge... NAT for PPP dial in user
the_brothel at hotmail.com
Tue Dec 23 11:50:33 PST 2003
I've been playing around with this for a while.
I have a FreeBSD 4.8 box set as a gateway on my home LAN. I have 1 pc
downstairs, and a few dial up users... FreeBSD box has 2 network cards, 1
for internal, 1 for external internet using cable & 1 56k modem.
Very simple problem... when a dial in user connects to the FreeBSD
gateway/router using PPP, NAT stops working on the PC downstairs and won't
work on the dial in PC either...
I have complete LAN access (telnet, ssh, samba, ping etc) on both the dial
in PC and the downstairs PC, but somewhere my config is preventing everyone
from being able to access the internet at once.
In rc.conf, I have my Gateway_enable=YES, defaultrouter=192.168.1.1,
PPP.conf is simple...
set ifaddr 192.168.1.1 192.168.1.100-192.168.1.199 255.255.255.0
add HISADDR 255.255.255.0 MYADDR
set dns 22.214.171.124
I'm running a firewall, but it is open for the TUN0 interface...
I also have a divert natd (8668) allow all from any to any out via tl0
All other PC's on the LAN are windows clients... the one downstairs I was
able to just set a default gateway and it was up and running on the
internet, unfortunately it isn't done like that on a dial in setup on
windows... I can't use DHCP for the clients, as I'm not supposed to have
internet sharing running...
Do I need to have an add statement in the PPP.conf, or do i have to enable
proxyall rather than enable proxy??
Worst thing about this is I can't find enough doco on it on the net... I'll
write my own when I get it done...
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