Ryan Joiner
2014-Feb-25 15:53 UTC
Multiple IP's on EM1 interface - Traffic to go out a specific IP for fw only
Hello, I have a firewall running CentOS6 and Shorewall 4.5.4-1. We have an IP block 67.235.132.0/28 that the ISP has given us and our internet network is 192.168.11.0/24. Right now we are able to masq all the traffic in the 192.168.11.0/24 network and use the 67.235.132.1 IP and that works great. Is there a way to get the firewall itself to connect out using a different IP on the block? Is this not done in the masq config? We would like it to go out on a different IP for yum updates, sending out mail in postfix, and really any connection the firewall does, we want it to use a different IP like 67.235.132.2 or .3. Thank you A little more info: The masq file looks like: em1 192.168.11.0/24 We have a few IP's configured on the em1 interface: Em1 is 67.235.132.1 Em1:1 is 67.235.132.2 Em1:2 is 67.235.132.3 Em1:3 is 67.235.132.4 ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk