I don't see a way to turn off the router's firewall completely.

I dug out the old laptop I mentioned earlier, but it's so old it
doesn't have an ethernet connection.  I had to put together a system
that was over in the corner, waiting for a friend to pick up.  I was
avoiding touching that one because it was already all set up and I
didn't want to mess with the network settings -- and it would also mean
moving other parts of my setup into another room.

I hooked that computer up, giving it the address of 10.0.0.201, just
like with the SB.  From there I tried and could ping 10.0.0.201
(itself) and 10.0.0.101 (the WAN interface).

I cannot ping ANYTHING on the 172.16.7.xxx LAN at all from the computer
at 10.0.0.201.  I tried traceroute to 10.0.0.101 and it took about 15
seconds or longer to report back a single hop.  I tried it on another
computer and traceroute, for one hop, took only about 5 seconds.  (But
that was a quad core computer...)

>From the 10.0.0.201 computer I ping'ed 10.0.0.5 and got a timeout
message from ping.  When I pinged anything out of the 10.xxx.xxx.xxx
range, there was no response or action at all.  No report back that it
was out of range or there was no route to the host or anything -- it
just hung there, and in one case I let it sit for 15 minutes.

I think this definitely shows the issue is the router.  The computer
does see it as a gateway, as it needs to, but the router is not
forwarding anything as it should.  (And that seems to raise the
question of how it works on the LAN side, but I can ping it, ssh to it,
and use the web interface from the LAN side, so it does communicate
there -- just no communication between WAN and LAN within the router.

I tried to get some kind of verification on what I need to do to be
sure all the variables in NVRAM in the router were reset, but getting
answers on the OpenWRT board is slow.

So this puts it out of the SB/Slimdevices court and definitely in the
OpenWRT area, but if anyone here knows enough about firewalls and such,
I would still appreciate their help.  This is not an area I know well. 
I've spent years programming, but rarely have had to deal with issues
like this.

Thanks for any thoughts and for the help and suggestions that have
already been offered!


-- 
HalNineThousand
------------------------------------------------------------------------
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View this thread: http://forums.slimdevices.com/showthread.php?t=62565

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