Fortigate Version 7.2.10
We have several internet facing devices that use virtual IPs and a phone system that uses SIP which has a one-to-one IP assigned to it. We have two ISPs with link-monitor setup.
To match our new locations, we are attempting to migrate to SD-WAN. We made the necessary changes to add the WAN ports to SD-WAN (removing existing polices on the interfaces and readding them).
Upon completion the internet was tested and worked - failover to second WAN worked. Our internet facing devices were able to be access via the virtual-IP mappings on their respective public IPs\ports. We are not using SLA targets - strictly a primary\failover scenario.
Our SIP device however was unable to register with the trunk provider. The Fortigate shows the IP was assigned and the SD-WAN was using the interface in the specific range. I don't believe the PBX system was able to access the internet with the one-to-one IP assignment.
Restoring the previous configuration had this device work again without any further issues.
What should we be looking for when moving from traditional WAN to SD-WAN that may interfere with a one-to-one IP pool? I was unable to capture any debugs before having to restore the old configuration but will be back in a few nights to try again.
Hello,
Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.
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Thanks,
Hi sorry to waste anyone's time but this seems to be a configuration issue - likely from some old config on the fortigate that I'm looking into.
I configured this at our new location on a temporary PBX and it worked fine right away. I thought perhaps the SD-WAN may be interfering so was reaching out to the community is case of any known issues.
I've managed to reroute our ISPs so I don't have to wait until overnight hours to test and will work on tracking down what in the configuration is causing the issue.
Thanks for your help Stephen
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