From eb1e43a9af9e1905b754f1f191d228e2676ce181 Mon Sep 17 00:00:00 2001
From: "Ondrej Zajicek (work)" <santiago@crfreenet.org>
Date: Tue, 17 Sep 2019 14:45:14 +0200
Subject: [PATCH] BGP: Fix setup with multiple dynamic BGP ranges

Based on a patch from Liam Nattrass, thanks.
---
 proto/bgp/bgp.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c
index b26e5e87..d6c2b7e4 100644
--- a/proto/bgp/bgp.c
+++ b/proto/bgp/bgp.c
@@ -1551,6 +1551,14 @@ bgp_start(struct proto *P)
   lock->type = OBJLOCK_TCP;
   lock->hook = bgp_start_locked;
   lock->data = p;
+
+  /* For dynamic BGP, we use inst 1 to avoid collisions with regular BGP */
+  if (bgp_is_dynamic(p))
+  {
+    lock->addr = net_prefix(p->cf->remote_range);
+    lock->inst = 1;
+  }
+
   olock_acquire(lock);
 
   return PS_START;