From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marshall Crocker Date: Mon, 11 Aug 2008 05:03:58 +0000 Subject: Re: How to fix continuous ConfReq's on celluar internet connection Message-Id: <489FC83E.1080705@iconux.org> List-Id: References: <489F746B.3040002@123mail.org> In-Reply-To: <489F746B.3040002@123mail.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ppp@vger.kernel.org >> The host was multi-homed, and when the 1x RTT link came up the default >> route was swung onto the link. Existing connections began to emit >> packets to the modem link with a source IP corresponding to the previous >> default route. It was these packets which caused the reconfiguration. >> > I'm not doing any sort of multihoming so there is no default route > until the ppp connection comes up. No invalid packets should be making > it to the ISP but I'll do a capture and see what comes up... What comes up are packets from a host in my local network getting sent out over ppp! Every time a packet with the source from my internal network gets sent over ppp, the connection reconfigures. You were exactly right! What I'm seeing is packets being sent out over ppp such as 192.168.0.10 -> google.com Which means that my iptables NAT script isn't doing its job. I've never claimed to be an iptables expert which is why I've always used MonMotha's iptables firewall. I guess its time to learn....