Forum Discussion
robert_blair_75
Nimbostratus
NimbostratusSNAT Auto-map
My knowledge is in version 4.5 and we are implementing new 9.4 LTMs. My questions is:
In version 4.5, I defined SNAT-Automap under a non-floating self IP for the external links.
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Steven_Le_Roux_Nimbostratus
NimbostratusHi,
I'm reviving this thread because I have a question relating those elements.
Is the SNAT Automap algorithm traffic group aware ?
I explain,
If I have two devices, dev0, dev1 with two traffic groups tg0, tg1.
10.0.0.10 is the virtual address on tg0.
10.0.1.1 is the floating on tg1 and 10.0.1.2 is a floating on tg0.
Connection will be "snated" with 10.0.1.2 in a normal situation.
If fail over occurs with dev0 and dev1 now handles tg0 and tg1, existing connections will continue on dev1 as expected, but what about new connections ? Is it possible that the snat automap on dev1 attribute some of the floating from tg1 for connections to 10.0.0.10 ?
If so, this is problematic when you fail back because you will have 10.0.0.10 failing back to dev0, through tg0, but establised connections with 10.0.1.1 through tg1 will be lost, remaining on dev1.
Any information about this ?
Bernhard_MNimbostratus
Nimbostratusold question but still unanswered :)
Yes, automap is traffic-group aware. It uses only floating-self-ips in the same traffic-group.
If non is available it falls back to the non-floating-self-ip.
