Christian Aust wrote: > Hi, > > I'm using Shorewall 4.2.1 in a "multiple ISP" scenario, currently with > 2 DSL lines attached as ppp0 and ppp1. I've followed the guide to set > it up and it works, however some questions remain. Please see > http://raq550.dyndns.org/~christian/dump.txt.gz > for configuration details. > > (1) How is traffic split between the two lines? Based on what?
Weighted round-robin where the 'weight' is the number following 'balance=' (default 1). > (2) The doc says to add masq entries between the balanced lines, which > I didn't do yet. My ppp0 and ppp1 interfaces don't have a static IP, > do I need to use a script to detect the current IP? You don't need a script but you need to store the IP address of each interface in a shell variable in /etc/shorewall/params as described in Shorewall FAQ 2. As I pointed out in another post just in the last several days, in addition to find_first_interface_address(), there is a find_first_interface_address_if_any() that can be used with optional interfaces. > (3) What happens when a line goes down unexpectedly? How do I recover > from that? If you have marked all of the interfaces as 'optional' in /etc/shorewall/interfaces, then all you need to do is restart Shorewall. > (4) We're planning to add two more DSL lines. The example for 3 lines > is a bit unclear in terms of how to deal with one more line. Can > anybody help? I don't know what else to tell you other than what I wrote in that article. -Tom -- Tom Eastep \ The ultimate result of shielding men from the Shoreline, \ effects of folly is to fill the world with fools. Washington, USA \ -Herbert Spencer http://shorewall.net \________________________________________________
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