Using the following configuration on 1.3-rolling-202004131043 I see two tunnels running:

Can you share me a configuration?

Fixed in VyOS 1.3-rolling-20200413104

This is a old quirk that's long known (probably was already reported) and
can be worked around by adding a pseudo-ethernet interface with the DHCP
client on it.

Upgraded the firmware of the X710 adapters from 6.0 to 6.8, waiting for Dell to get 7.0 and 7.2 ready. But for now the sessions are 18 hours stable so little optimistic that it was a firmware issue and not BGPd causing issues

https://github.com/vyos/ddclient/commit/6704998de025c7195eb5f30f64859cb0bb7d4596

https://github.com/vyos/vyos-1x/pull/339

Test results on the VyOS 1.3-rolling-202004020117:
Basically, the DHCP option 121 is handled as expected but two issues were observed i.e.:

1. Static routes advertised by the DHCP server in option 121 are not automatically removed from the FIB when the "address dhcp" setting is removed from the interface. Disable/enable the interface doesn't change anything. The only option to get rid of them is to restart the router.

A similar behavior is observed when the "address dhcp" config is replaced with static IP address in one go. In that case disable/enable the interface at least makes them removed from the FIB but they are still present in the FRR as "inactive" . The only option to get rid of them is to restart the router.

decided to go with HAProxy

Trying to find more information with debugging settings of zebra process.
Apr 12 23:52:18 router zebra[1472]: 0:2404:5780:3::/48: Route install failed
Apr 12 23:52:18 router zebra[1472]: 0:2404:5780:3::/48 Stale dplane result for old_re 0x555f6166b300
Apr 12 23:52:18 router zebra[1472]: 0:2404:5780:3::/48 Processing dplane ctx 0x555f765ff7a0, op ROUTE_UPDATE result FAILURE

https://github.com/vyos/vyos-1x/pull/338

Thanks very much, @jestabro !

@chrismarget I'll commit the changes shortly, and close the task; thanks!

c-po closed PR#100 based on intent to restore (I didn't realize they'd been removed) those packages via the dockerfile.

Tested on 1.2.5

There are no other reports about such issues
we need valid reproduction procedure for this, otherwise, not much that we can do

https://github.com/vyos/vyos-1x/pull/335

could you please try this patch. if it still fails, can you remove the 'mtu' from the 'options' line and try again ?

diff --git a/python/vyos/ifconfig/tunnel.py b/python/vyos/ifconfig/tunnel.py
index 0506066..46900ce 100644
--- a/python/vyos/ifconfig/tunnel.py
+++ b/python/vyos/ifconfig/tunnel.py
@@ -141,8 +141,8 @@ class GREIf(_Tunnel):
     default = {'type': 'gre'}
     required = ['local', ]  # mGRE is a GRE without remote endpoint

Retested today using VyOS 1.3-rolling-202004120117

Also fixed in 1.3 https://github.com/vyos/vyos-build-kernel/commit/006550a30afa3c595a07782ec3ce239dc6f65443