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Re: [lwip-users] Default Gateway does not change back after PPP link is

From: Marco Jakobs
Subject: Re: [lwip-users] Default Gateway does not change back after PPP link is deactivated
Date: Mon, 21 Nov 2011 16:22:46 +0100
User-agent: Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20111105 Thunderbird/8.0


OK ... found the solution by myself.

To all who may have the same problem: After the PPP is brought down, a call

netif_set_default( &xEMAC_if );

with the Ethernet netif as parameter is needed to make the ethernet again the default interface.


Am 21.11.2011 15:57, schrieb Marco Jakobs:
Dear all,

i'm facing a problem with LwIP (1.3.2) and the use of PPP.

The Ethernet port has defined an IP address, Netmask and the default gateway configuration. Everything works pretty well, also sending packets to different subnets to the default gateway.

As soon as i activate the PPP link, the default gateway is now automatically the PPP destination, so the PPP overrides the default gateway (which is correct so far).

But after deactivating the PPP, the standard gateway of LwIP seems not to return to the value defined in the ethernet link! As soon as the PPP was up once and was put down again, the standard gateway is not working and all connections to different subnets are without any efford.

How can i "reset" the standard gateway of LwIP to the gateway already defined in the ethernet settings?


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