Forum Discussion
Sarah_258804
Cirrus
CirrusDoes the Big-IP use its management IP address to query the internet for F5 updates?
I'm seeing my F5 try to query the internet to check for updates after I manually pressed "Check Now" from the update check page. It's currently trying to reach out to the internet from its Self-IP, not the management address.
Should the F5 being using its Self-IP by default to query that update server out in the internet or should it be using its management IP address?
I ask because I currently have a static default route on the F5 that says if you're going to 0.0.0.0, take your default gateway at 10.251.12.1 (the default gateway for the Self-IP).
Is this why it's trying to source the request from that address or would it be doing it by default anyway even if I didn't have that default route set?
Hi Sarah,
The BIG-IP prefers the tmm route where possible. There are some nuances so I recommend that you take a look at sol13284.
Regards, Michael.
Hi Sarah,
The BIG-IP prefers the tmm route where possible. There are some nuances so I recommend that you take a look at sol13284.
Regards, Michael.
JGCumulonimbus
Crystal clear now. Thanks!- TMM does not handle the SSH or web UI. Those are Linux userspace applications. If you're connecting to a BIG-IP management service via a TMM interface IP *and* TMM permits the port(s) on that interface, then TMM will hand the session off to Linux.
- JGGood article, but can anybody give an example to explain "If the self IP address is configured to allow a connection to the destination service port, TMM hands the connection off to the Linux operating system, which then processes the connection request" mentioned in the article?