Hi there, I need some hint about multi ISP configuration of shorewall. I have installed shorewall 4.4.11.,6 on debian squeeze.
I have two providers connected on eth1 (ISP1) and eth2 (ISP2) by two routers (not modem); both the connections have static public ip address. The eth0 is the local lan interface. eth1 has ip address 192.168.10.9 with gateway (ISP1 router) 192.168.10.1 eth2 has ip address 192.168.1.9 with gateway (ISP2 router) 192.168.1.1 In the default configuration some applications (VPN, ssh and video conference) must be routed on ISP2 and all the others on ISP1. I used tcrules file to route the applications. When one of the ISP is down I need to switch all applications on the ISP that is up. I use a swping-like script to test the connections and eventually switch from a ISP to the other. If I use eth1 and eth2 files status to set UP or DOWN the interfaces, when an interface goes down after the shorewall restart I'm no longer be able to test the interface that is down, the ping to an external ip fails also when the interface is again up. I'm only able to ping the gateway address that correspond to the ISP router, but this is always up! How can I modify interface configuration to be able to ping an external ip address? When an interface is down how the relative routings in the tcrules file are processed? When shorewall is restarted (/sbin/shorewall restart -f) are the configuration files reread? In the present configuration I don't use eth file status and when an interface is down (ping is not responding) the script modifies tcrules file to redirect all applications on interface that is up and restarts shorewall (/etc/init.d/shorewall restart). I hope I was able to expalin the situation and the problem. Thanks in advance for your answer... and sorry for my little english. ------------------------------------------------------------------------------ AppSumo Presents a FREE Video for the SourceForge Community by Eric Ries, the creator of the Lean Startup Methodology on "Lean Startup Secrets Revealed." This video shows you how to validate your ideas, optimize your ideas and identify your business strategy. http://p.sf.net/sfu/appsumosfdev2dev _______________________________________________ Shorewall-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/shorewall-users
