Hello, I have successfully installed and configured a multi ISP environment based on Shorewall 3.4.3. I achieved this pretty much exaclty like explained in the related documentation (http://www.shorewall.net/MultiISP.html). Everything is working fine, I am using the 'track' option.
In addition to shorewall there is a SMTP relaying deamon running on the same machine. Mails transfered to 'net' will be relayed by '$FW'. Due to some reverse DNS checks of some outside mail servers, now I have to ensure that all outgoing SMTP traffic is routed through a specific ISP (the one with the registered public IPs for the domain). Unfortunately I was not able to find a way to do this. The mentioned example in MultiISP.html does not work in my case because the traffics source is '$FW' where the 'P' chain can not be used: > > Now suppose that you want to route all outgoing SMTP traffic from your > local network through ISP 2. You would make this entry in > /etc/shorewall/tcrules <http://www1.shorewall.net/traffic_shaping.htm> > (and if you are running a version of Shorewall earlier than 3.0.0, you > would set TC_ENABLED=Yes in /etc/shorewall/shorewall.conf > <http://www1.shorewall.net/MultiISP.html???>). > > #MARK SOURCE DEST PROTO PORT(S) > CLIENT USER TEST > # PORT(S) > 2:P <local network> 0.0.0.0/0 tcp 25 How can I achive that SMTP generated by $FW is routed through a particular ISP? Bodo ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Shorewall-users mailing list Shorewall-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/shorewall-users
