Forum Discussion
MR_RJ
Jun 20, 2012Cirrus
Advanced configuration with one local node and one external
Hi,
Trying to configure the following.
BigIP v10.x.
I have a NTP server placed on a DMZ, 10.0.0.1. I got a LB IP (VS) 10.0.0.2 with SNAT.
That part works just fine.
I would now like to add another node, but the node is located on internet, so when the local server goes down or is in maintenance, the requests shall go to ntp server on internet.
How should I solve this?
If I just put the public-internet-ip as a node, the incoming traffic will be SNATed and the LB dont know where to send this since it doesnt really know a default gw on the subnet 10.0.0.0/24.
My first though was to create a iRule like:
when CLIENT_ACCEPTED {
if { [active_members NTP] == 0 } {
snat automap
pool DMZ_GW
}
}
...but it doesn't work :|
Any ideas how to solve this?
I've searched the forum for similar solutions without success.
//Rob
- ArieAltostratusThe first thing you'll want to check is to see whether your node with the public address can route out to the remote server. If you're lucky it'll respond to a ping. If not you can use a customized monitor for the remote pool member (e.g. http).
- MR_RJCirrusHi,
- MR_RJCirrusSomething like this:
- hooleylistCirrostratusCan you add a host route for the external NTP server?
- MR_RJCirrusWill that work?
- MR_RJCirrusA small update on this one. I just got back from a few weeks off so sorry for the late update.
- hooleylistCirrostratusGlad to hear that worked for you RJ. Thanks for confirming.
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