Pierre Fortin wrote:
> Felix Miata wrote:
> > Pierre Fortin wrote:
> > Now I've #'ed the compatibility section you said to delete.
> > route -n (no ppp):
> > Kernel IP routing table
> > Destination Gateway Genmask Flags Metric Ref Use Iface
> > 192.168.0.54 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
> > 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
> > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
> > route -n (with ppp):
> > Kernel IP routing table
> > Destination Gateway Genmask Flags Metric Ref Use Iface
> > 209.208.25.20 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
> > 192.168.0.54 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
> > 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
> > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
> > 0.0.0.0 209.208.25.20 0.0.0.0 UG 0 0 0 ppp0
> > My other machines still can't see the internet when st21s has active ppp.
> > netstat -arp on OS/2 shows the following first line:
> > Destination Router Netmask Flags Metric Ref Use Iface
> > default 192.168.0.54 0.0.0.0 UG 0 0 28 lan0
> This will work for internal communication... this machine has only one way out
> and everything can go via a single default route.
If st21s (.54) isn't up, none of the other local machines can ping any
others. Seems like this should not be so. Also, the IP Masquerade mini
HOWTO says:
Configuring OS/2 Warp
6.Set the same DNS (Nameserver) Address that your Linux host uses in
'Hosts'.
I currently have no DNS addresses in the OS/2 hosts file. Is this
consistent with what you wrote above?
> You now need to setup ipmasq on st21s to allow OS/2 to communicate through it.
> > So, I'm still not where I need to be. Maybe closer I hop. I guess I'm still short
> > on understanding the gateway concept and how it is implemented.
> gateway is just another term for router in this context. You now need to setup
> address translation (NAT aka ipmasq)...
Is ipmasq just a nick for IP masquerade and/or NAT, or an actual Linux
executable (which I don't see in /sbin)? I found the IPCHAINS & IP
Masquerade (mini & full) HOWTO's. Between those and the help from you,
Ian, and a Usenet poster, my /etc/rc.d/rc.local ends with the following:
/sbin/ifconfig eth0 192.168.0.54 netmask 255.255.255.0
up
/sbin/ifconfig lo 127.0.0.1
up
#/sbin/route add -host 127.0.0.1
lo
#/sbin/route add default gw
192.168.0.54
#/sbin/route add -net 192.168.0.0 netmask 255.255.255.0 gw
192.168.0.54
echo 1 >
/proc/sys/net/ipv4/ip_forward
/sbin/ipchains -P forward
DENY
/sbin/ipchains -A forward -s 192.168.0.0/16 -j MASQ
This is providing the machines on my local network access to the
internet as long as st21s has an active ppp connection, so I have made
major progress. However, I'm absolutely unsure about whether what I've
done is a desirable way to reach that end, or whether I should be doing
more than I have. If all I needed to do is what I did do, why didn't I
find a simple example anywhere that simply states "howto"? Surely a
configuration much like mine is common.
Thanks again! It would probably have taken me an extra week at least
without the help.
--
A fool gives full vent to his anger, but a wise man keeps himself under
control. Proverbs 29:11 NKJV
Written on OS/2, but routed to you via Linux
Felix Miata *** http://mrmazda.members.atlantic.net/
