I need some help figuring out why my ADVPN lab isn't working as it should. I currently have 2 hubs and 2 branches in the topology. I am able to communicate branch to branch via the primary ADVPN tunnel just fine, but when I fail one of the WAN links at either of the branches, the BGP next-hop does not populate correctly causing traffic to halt.
BRANCH1 # get router info bgp network BGP table version is 37, local router ID is 10.255.255.2 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, S Stale Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight RouteTag Path *>i10.10.10.0/30 10.255.255.1 0 100 0 0 i * i 10.255.255.1 0 90 0 0 i *>i11.11.11.0/30 10.255.255.4 0 100 0 0 i * i 10.255.254.1 0 90 0 0 i *> 12.12.12.0/30 0.0.0.0 100 32768 0 i *>i13.13.13.0/30 10.255.255.3 0 100 0 0 i * i 10.255.255.3 0 90 0 0 i Total number of prefixes 4
BRANCH2 # get router info bgp network BGP table version is 25, local router ID is 10.255.255.3 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, S Stale Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight RouteTag Path *>i10.10.10.0/30 10.255.255.1 0 100 0 0 i * i 10.255.255.1 0 90 0 0 i *>i11.11.11.0/30 10.255.255.4 0 100 0 0 i * i 10.255.254.1 0 90 0 0 i *>i12.12.12.0/30 10.255.255.2 0 100 0 0 i * i 10.255.254.2 0 90 0 0 i *> 13.13.13.0/30 0.0.0.0 100 32768 0 i Total number of prefixes 4
I have Hub2 BGP local-pref set to 90 to serve as a backup hub, but as you can see, 10.255.254.x only shows up for a few select networks and not all of them. Both hubs have route-reflector-client enabled in their BGP settings.
For reference, I have followed the ADVPN setup located here: https://kb.fortinet.com/kb/viewAttachment.do?attachID=FortiOS_ADVPN_version_2018-11-22.pdf&documentI...
Attached is a screenshot of my GNS3 topology.
Any help is appreciated! Thanks!
Nominating a forum post submits a request to create a new Knowledge Article based on the forum post topic. Please ensure your nomination includes a solution within the reply.
Hi, did you ever get this working as expected?
Eugene.milon wrote:I have not. I am going to wait until Fortinet releases its next 6.x firmware that should fix this specific issue.Hi, did you ever get this working as expected?
Select Forum Responses to become Knowledge Articles!
Select the “Nominate to Knowledge Base” button to recommend a forum post to become a knowledge article.
User | Count |
---|---|
1645 | |
1070 | |
751 | |
443 | |
210 |
The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges.
Copyright 2024 Fortinet, Inc. All Rights Reserved.