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Re: [lwip-users] routing over PPP using lwip
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From: |
Sylvain Rochet |
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Subject: |
Re: [lwip-users] routing over PPP using lwip |
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Date: |
Wed, 13 May 2015 10:59:01 +0200 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hello Damien,
On Tue, May 12, 2015 at 11:33:23PM +0000, COOKE, Damien wrote:
>
> We have a system that we are using lwip for our tcp engine. It is a
> system without an OS running on ARMV9 hardware. It has a tcp
> connection to a server and a ppp connection to a peripheral client
> device. The tcp connection to the server is faultless and the PPP
> connection comes up fine we can see ping packets between the client
> and the system over the ppp connection but we are unable to send
> packets over the ppp connection. I suspect a routing issue and was
> wondering if anyone else had seen something like this and if someone
> could guide me as to where I should be looking to find my issues?
Which lwIP version are you using ?
Which PPP link protocol are you using ? PPPoS ? PPPoE ? PPPoL2TP ?
Are you trying to do SNAT ? lwIP doesn't support NAT at all.
Is LwIP IP routing enabled ?
Note that IP routing between Ethernet and PPPoS was recently fixed in
git master head.
Sylvain
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