[nos-bbs] gateway

[Bob Tenty]

Also don't forget to enable packet forwarding for IPv4 in linux 
otherwise jnos
can't be reached from outside your machine.

in /etc/sysctl.conf

net.ipv4.ip_forward=1

(by default it is hashed out)

run:  sysctl -a      to make it active.

or alternate check the setting with: cat /proc/sys/net/ipv4/ip_forward

if "0"  set to "1" with:

echo 1 > /proc/sys/net/ipv4/ip_forward   and add that line to rc.local.

73,

Bob VE3TOK


On 11-03-25 03:20 PM, Russ WL7LP wrote:
> well if funny that you bring that up about tun host and all. after 
> further testing it only pings itself and nothing outside the nos 
> machine. so working on getting it to talk to the rest of the world.  
> the nos machine is connected to my router and router is connected to 
> the cable modem. so I got to get it to go thru the router and out the 
> cable modem.
>
> already been scratching my head and I grew up using Dos. now have less 
> hair to prove it due to all the scratching :-)
>
> 73 Russ WL7LP
>
> --- On *Fri, 3/25/11, George [ham] VerDuin /<k8rra at ameritech.net>/* wrote:
>
>
>     From: George [ham] VerDuin <k8rra at ameritech.net>
>     Subject: Re: [nos-bbs] gateway
>     To: nos-bbs at tapr.org
>     Date: Friday, March 25, 2011, 6:56 AM
>
>     On 03/24/2011 03:47 PM, Russ WL7LP wrote:
>     > ok I finally got a new Linux system up (Slackware 9.1)  I
>     finally got a jnos compile. wow it is huge lol
>     >
>     Yup -- and that hugeness is much related to the symbols that make
>     gdb functional.  If you want to give up on gdb much can be
>     stripped to result in a smaller footprint.
>
>     > anyhow. I believe I now have Tun working in it. I can ping my
>     internet provider.
>     >
>     So does that mean that the [?tun ==> host ==> forward ==> gateway
>     ==> ISP ==> firewall ==> host ==> ?tun] chain is working for you? 
>     Or do you ping from the host?
>
>
>     > but can seem to ping anything else or connect to anything for
>     that matter. so I am still working on it and with luck will have
>     my gateway back up soon.
>     >
>     Perhaps the encap feature is not encapping?  Does the jnos "trace"
>     command(s) directed to a file shed light on your missing traffic?
>
>
>     > just want to let those know that are waiting and had or want a
>     route with me. bare with me  I am getting there slowly :-)
>     >
>     > 73 Russ WL7LP
>     >
>     >
>     There are a few wrinkles that jnos mounted on Linux [or any other
>     host OS for that matter] provides.  Anyone who grew up on a DOS
>     platform does not experience the "virtual" thing.  Takes a little
>     head scratching...?
>
>     Best of luck.
>     Skip
>
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>
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