diff --git a/filter/f-inst.c b/filter/f-inst.c
index a41fcc4f..d2f41188 100644
--- a/filter/f-inst.c
+++ b/filter/f-inst.c
@@ -526,7 +526,7 @@
       case SA_FROM:	RESULT(sa.f_type, ip, rta->from); break;
       case SA_GW:	RESULT(sa.f_type, ip, rta->nh.gw); break;
       case SA_NET:	RESULT(sa.f_type, net, (*fs->rte)->net->n.addr); break;
-      case SA_PROTO:	RESULT(sa.f_type, s, rta->src->proto->name); break;
+      case SA_PROTO:	RESULT(sa.f_type, s, (*fs->rte)->src->proto->name); break;
       case SA_SOURCE:	RESULT(sa.f_type, i, rta->source); break;
       case SA_SCOPE:	RESULT(sa.f_type, i, rta->scope); break;
       case SA_DEST:	RESULT(sa.f_type, i, rta->dest); break;
@@ -561,7 +561,7 @@
 	{
 	  ip_addr ip = v1.val.ip;
 	  struct iface *ifa = ipa_is_link_local(ip) ? rta->nh.iface : NULL;
-	  neighbor *n = neigh_find(rta->src->proto, ip, ifa, 0);
+	  neighbor *n = neigh_find((*fs->rte)->src->proto, ip, ifa, 0);
 	  if (!n || (n->scope == SCOPE_HOST))
 	    runtime( "Invalid gw address" );
 
diff --git a/nest/route.h b/nest/route.h
index bcaf15c0..5d77f5c4 100644
--- a/nest/route.h
+++ b/nest/route.h
@@ -230,6 +230,7 @@ struct hostentry {
 typedef struct rte {
   struct rte *next;
   net *net;				/* Network this RTE belongs to */
+  struct rte_src *src;			/* Route source that created the route */
   struct channel *sender;		/* Channel used to send the route to the routing table */
   struct rta *attrs;			/* Attributes of this route */
   u32 id;				/* Table specific route id */
@@ -446,7 +447,6 @@ typedef struct rta {
   u32 uc;				/* Use count */
   u32 hash_key;				/* Hash over important fields */
   struct ea_list *eattrs;		/* Extended Attribute chain */
-  struct rte_src *src;			/* Route source that created the route */
   struct hostentry *hostentry;		/* Hostentry for recursive next-hops */
   ip_addr from;				/* Advertising router */
   u32 igp_metric;			/* IGP metric to next hop (for iBGP routes) */
diff --git a/nest/rt-attr.c b/nest/rt-attr.c
index 5498a2a3..56494a7b 100644
--- a/nest/rt-attr.c
+++ b/nest/rt-attr.c
@@ -1099,7 +1099,6 @@ rta_hash(rta *a)
   mem_hash_init(&h);
 #define MIX(f) mem_hash_mix(&h, &(a->f), sizeof(a->f));
 #define BMIX(f) mem_hash_mix_num(&h, a->f);
-  MIX(src);
   MIX(hostentry);
   MIX(from);
   MIX(igp_metric);
@@ -1115,8 +1114,7 @@ rta_hash(rta *a)
 static inline int
 rta_same(rta *x, rta *y)
 {
-  return (x->src == y->src &&
-	  x->source == y->source &&
+  return (x->source == y->source &&
 	  x->scope == y->scope &&
 	  x->dest == y->dest &&
 	  x->igp_metric == y->igp_metric &&
@@ -1206,7 +1204,6 @@ rta_lookup(rta *o)
   r = rta_copy(o);
   r->hash_key = h;
   r->cached = 1;
-  rt_lock_source(r->src);
   rt_lock_hostentry(r->hostentry);
   rta_insert(r);
 
@@ -1225,7 +1222,6 @@ rta__free(rta *a)
   if (a->next)
     a->next->pprev = a->pprev;
   rt_unlock_hostentry(a->hostentry);
-  rt_unlock_source(a->src);
   if (a->nh.next)
     nexthop_free(a->nh.next);
   ea_free(a->eattrs);
@@ -1264,8 +1260,8 @@ rta_dump(rta *a)
 			 "RTS_OSPF_EXT2", "RTS_BGP", "RTS_PIPE", "RTS_BABEL" };
   static char *rtd[] = { "", " DEV", " HOLE", " UNREACH", " PROHIBIT" };
 
-  debug("p=%s pref=%d uc=%d %s %s%s h=%04x",
-	a->src->proto->name, a->pref, a->uc, rts[a->source], ip_scope_text(a->scope),
+  debug("pref=%d uc=%d %s %s%s h=%04x",
+	a->pref, a->uc, rts[a->source], ip_scope_text(a->scope),
 	rtd[a->dest], a->hash_key);
   if (!a->cached)
     debug(" !CACHED");
diff --git a/nest/rt-dev.c b/nest/rt-dev.c
index 7a340160..dae1223b 100644
--- a/nest/rt-dev.c
+++ b/nest/rt-dev.c
@@ -77,7 +77,6 @@ dev_ifa_notify(struct proto *P, uint flags, struct ifa *ad)
 
       rta a0 = {
 	/* Use iface ID as local source ID */
-	.src = rt_get_source(P, ad->iface->index),
 	.pref = c->preference,
 	.source = RTS_DEVICE,
 	.scope = SCOPE_UNIVERSE,
@@ -85,6 +84,7 @@ dev_ifa_notify(struct proto *P, uint flags, struct ifa *ad)
 	.nh.iface = ad->iface,
       };
       rte e0 = {
+	.src = rt_get_source(P, ad->iface->index),
 	.attrs = &a0,
       };
       rte_update(c, net, &e0);
diff --git a/nest/rt-show.c b/nest/rt-show.c
index 48305be0..b0bfa1c8 100644
--- a/nest/rt-show.c
+++ b/nest/rt-show.c
@@ -56,7 +56,7 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, int primary
   if (d->verbose && !rta_is_cached(a) && a->eattrs)
     ea_normalize(a->eattrs);
 
-  get_route_info = a->src->proto->proto->get_route_info;
+  get_route_info = e->src->proto->proto->get_route_info;
   if (get_route_info)
     get_route_info(e, info);
   else
@@ -66,7 +66,7 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, int primary
     rt_show_table(c, d);
 
   cli_printf(c, -1007, "%-20s %s [%s %s%s]%s%s", ia, rta_dest_name(a->dest),
-	     a->src->proto->name, tm, from, primary ? (sync_error ? " !" : " *") : "", info);
+	     e->src->proto->name, tm, from, primary ? (sync_error ? " !" : " *") : "", info);
 
   if (a->dest == RTD_UNICAST)
     for (nh = &(a->nh); nh; nh = nh->next)
@@ -179,7 +179,7 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d)
 	    }
 	}
 
-      if (d->show_protocol && (d->show_protocol != e->attrs->src->proto))
+      if (d->show_protocol && (d->show_protocol != e->src->proto))
 	goto skip;
 
       if (f_run(d->filter, &e, c->show_pool, 0) > F_ACCEPT)
diff --git a/nest/rt-table.c b/nest/rt-table.c
index f0c12a22..b8f16a69 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -276,7 +276,7 @@ rte_find(net *net, struct rte_src *src)
 {
   rte *e = net->routes;
 
-  while (e && e->attrs->src != src)
+  while (e && e->src != src)
     e = e->next;
   return e;
 }
@@ -289,6 +289,7 @@ rte_do_cow(rte *r)
   memcpy(e, r, sizeof(rte));
   e->attrs = rta_clone(r->attrs);
   e->flags = 0;
+  rt_lock_source(e->src);
   return e;
 }
 
@@ -297,6 +298,8 @@ rte_store(rte *r)
 {
   rte *e = sl_alloc(rte_slab);
   memcpy(e, r, sizeof(rte));
+
+  rt_lock_source(e->src);
   if (e->attrs->cached)
     e->attrs = rta_clone(r->attrs);
   else
@@ -345,6 +348,7 @@ rte_cow_rta(rte *r, linpool *lp)
 void
 rte_free(rte *e)
 {
+  rt_unlock_source(e->src);
   if (rta_is_cached(e->attrs))
     rta_free(e->attrs);
   sl_free(rte_slab, e);
@@ -353,6 +357,7 @@ rte_free(rte *e)
 static inline void
 rte_free_quick(rte *e)
 {
+  rt_unlock_source(e->src);
   rta_free(e->attrs);
   sl_free(rte_slab, e);
 }
@@ -379,16 +384,16 @@ rte_better(rte *new, rte *old)
     return 1;
   if (new->attrs->pref < old->attrs->pref)
     return 0;
-  if (new->attrs->src->proto->proto != old->attrs->src->proto->proto)
+  if (new->src->proto->proto != old->src->proto->proto)
     {
       /*
        *  If the user has configured protocol preferences, so that two different protocols
        *  have the same preference, try to break the tie by comparing addresses. Not too
        *  useful, but keeps the ordering of routes unambiguous.
        */
-      return new->attrs->src->proto->proto > old->attrs->src->proto->proto;
+      return new->src->proto->proto > old->src->proto->proto;
     }
-  if (better = new->attrs->src->proto->rte_better)
+  if (better = new->src->proto->rte_better)
     return better(new, old);
   return 0;
 }
@@ -404,10 +409,10 @@ rte_mergable(rte *pri, rte *sec)
   if (pri->attrs->pref != sec->attrs->pref)
     return 0;
 
-  if (pri->attrs->src->proto->proto != sec->attrs->src->proto->proto)
+  if (pri->src->proto->proto != sec->src->proto->proto)
     return 0;
 
-  if (mergable = pri->attrs->src->proto->rte_mergable)
+  if (mergable = pri->src->proto->rte_mergable)
     return mergable(pri, sec);
 
   return 0;
@@ -520,13 +525,13 @@ rt_notify_basic(struct channel *c, struct rte_export_internal *e)
   if (e->new)
   {
     ep->new = export_filter(c, e->new, &e->rt_free, 0);
-    ep->new_src = e->new->attrs->src;
+    ep->new_src = e->new->src;
   }
 
   if (e->old && bmap_test(&c->export_map, e->old->id))
   {
     ep->old = e->old;
-    ep->old_src = e->old->attrs->src;
+    ep->old_src = e->old->src;
   }
 
   return (ep->new || ep->old);
@@ -603,9 +608,9 @@ rt_notify_accepted(struct channel *c, struct rte_export_internal *e)
 
   e->pub = (struct rte_export) {
     .new = new_best,
-    .new_src = new_best ? new_best->attrs->src : NULL,
+    .new_src = new_best ? new_best->src : NULL,
     .old = old_best,
-    .old_src = old_best ? old_best->attrs->src : NULL,
+    .old_src = old_best ? old_best->src : NULL,
   };
 
   return 1;
@@ -698,7 +703,7 @@ rt_notify_merged(struct channel *c, struct rte_export_internal *e)
   if (e->new_best)
   {
     ep->new = rt_export_merged(c, e->net, &(e->rt_free), rte_update_pool, 0);
-    ep->new_src = e->net->routes->attrs->src;
+    ep->new_src = e->net->routes->src;
   }
 
   /* Check old merged route */
@@ -708,7 +713,7 @@ rt_notify_merged(struct channel *c, struct rte_export_internal *e)
   if (!ep->new && !ep->old)
     return 0;
 
-  ep->old_src = ep->old ? ep->old->attrs->src : NULL;
+  ep->old_src = ep->old ? ep->old->src : NULL;
   return 1;
 }
 
@@ -988,7 +993,7 @@ rte_recalculate(struct channel *c, net *net, rte *new, struct rte_src *src)
   k = &net->routes;			/* Find and remove original route from the same protocol */
   while (old = *k)
     {
-      if (old->attrs->src == src)
+      if (old->src == src)
 	{
 	  /* If there is the same route in the routing table but from
 	   * a different sender, then there are two paths from the
@@ -1366,8 +1371,9 @@ static int rte_update_in(struct channel *c, const net_addr *n, rte *new, struct
 void
 rte_withdraw(struct channel *c, const net_addr *n, struct rte_src *src)
 {
+  ASSERT(src);
   if (!c->in_table || rte_update_in(c, n, NULL, src))
-    rte_update2(c, n, NULL, src ?: c->proto->main_source);
+    rte_update2(c, n, NULL, src);
 }
 
 void
@@ -1375,7 +1381,7 @@ rte_update(struct channel *c, const net_addr *n, struct rte *new)
 {
   ASSERT(new);
   ASSERT(new->attrs);
-  ASSERT(new->attrs->src);
+  ASSERT(new->src);
 
   if (!new->attrs->pref)
   {
@@ -1386,8 +1392,10 @@ rte_update(struct channel *c, const net_addr *n, struct rte *new)
   rte *e = sl_alloc(rte_slab);
   *e = *new;
 
-  if (!c->in_table || rte_update_in(c, n, e, e->attrs->src))
-    rte_update2(c, n, e, e->attrs->src);
+  rt_lock_source(e->src);
+
+  if (!c->in_table || rte_update_in(c, n, e, e->src))
+    rte_update2(c, n, e, e->src);
 }
 
 /* Independent call to rte_announce(), used from next hop
@@ -1405,7 +1413,7 @@ static inline void
 rte_discard(rte *old)	/* Non-filtered route deletion, used during garbage collection */
 {
   rte_update_lock();
-  rte_recalculate(old->sender, old->net, NULL, old->attrs->src);
+  rte_recalculate(old->sender, old->net, NULL, old->src);
   rte_update_unlock();
 }
 
@@ -1425,7 +1433,7 @@ rte_modify(rte *old)
       new->flags = (old->flags & ~REF_MODIFY) | REF_COW;
     }
 
-    rte_recalculate(old->sender, old->net, new, old->attrs->src);
+    rte_recalculate(old->sender, old->net, new, old->src);
   }
 
   rte_update_unlock();
@@ -1975,6 +1983,7 @@ rt_next_hop_update_rte(rtable *tab UNUSED, rte *old)
   rte *e = sl_alloc(rte_slab);
   memcpy(e, old, sizeof(rte));
   e->attrs = rta_lookup(a);
+  rt_lock_source(e->src);
 
   return e;
 }
@@ -2001,8 +2010,8 @@ rt_next_hop_update_net(rtable *tab, net *n)
 
 	/* Call a pre-comparison hook */
 	/* Not really an efficient way to compute this */
-	if (e->attrs->src->proto->rte_recalculate)
-	  e->attrs->src->proto->rte_recalculate(tab, n, new, e, NULL);
+	if (e->src->proto->rte_recalculate)
+	  e->src->proto->rte_recalculate(tab, n, new, e, NULL);
 
 	if (e != old_best)
 	  rte_free_quick(e);
@@ -2343,7 +2352,7 @@ rte_update_in(struct channel *c, const net_addr *n, rte *new, struct rte_src *sr
 
   /* Find the old rte */
   for (pos = &net->routes; old = *pos; pos = &old->next)
-    if (old->attrs->src == src)
+    if (old->src == src)
     {
       if (new && rte_same(old, new))
       {
@@ -2441,7 +2450,7 @@ rt_reload_channel(struct channel *c)
 	return 0;
       }
 
-      rte_update2(c, e->net->n.addr, rte_do_cow(e), e->attrs->src);
+      rte_update2(c, e->net->n.addr, rte_do_cow(e), e->src);
     }
 
     c->reload_next_rte = NULL;
@@ -2524,7 +2533,7 @@ rte_update_out(struct channel *c, const net_addr *n, struct rte_src *src, rte *n
 
   /* Find the old rte */
   for (pos = &net->routes; old = *pos; pos = &old->next)
-    if ((c->ra_mode != RA_ANY) || (old->attrs->src == src))
+    if ((c->ra_mode != RA_ANY) || (old->src == src))
     {
       if (new && rte_same(old, new))
       {
diff --git a/proto/babel/babel.c b/proto/babel/babel.c
index 9693025d..824d066d 100644
--- a/proto/babel/babel.c
+++ b/proto/babel/babel.c
@@ -630,7 +630,6 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e)
   if (r)
   {
     rta a0 = {
-      .src = p->p.main_source,
       .source = RTS_BABEL,
       .scope = SCOPE_UNIVERSE,
       .dest = RTD_UNICAST,
@@ -672,6 +671,7 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e)
       a0.nh.flags = RNF_ONLINK;
 
     rte e0 = {
+      .src = p->p.main_source,
       .attrs = &a0,
     };
 
@@ -682,7 +682,6 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e)
   {
     /* Unreachable */
     rta a0 = {
-      .src = p->p.main_source,
       .source = RTS_BABEL,
       .scope = SCOPE_UNIVERSE,
       .dest = RTD_UNREACHABLE,
@@ -690,6 +689,7 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e)
     };
 
     rte e0 = {
+      .src = p->p.main_source,
       .attrs = &a0,
     };
 
@@ -2102,10 +2102,8 @@ babel_kick_timer(struct babel_proto *p)
 static int
 babel_preexport(struct proto *P, struct rte **new, struct linpool *pool UNUSED)
 {
-  struct rta *a = (*new)->attrs;
-
   /* Reject our own unreachable routes */
-  if ((a->dest == RTD_UNREACHABLE) && (a->src->proto == P))
+  if (((*new)->attrs->dest == RTD_UNREACHABLE) && ((*new)->src->proto == P))
     return -1;
 
   return 0;
diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c
index f2810fd1..f254c940 100644
--- a/proto/bgp/attrs.c
+++ b/proto/bgp/attrs.c
@@ -1664,7 +1664,7 @@ int
 bgp_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED)
 {
   rte *e = *new;
-  struct proto *SRC = e->attrs->src->proto;
+  struct proto *SRC = e->src->proto;
   struct bgp_proto *p = (struct bgp_proto *) P;
   struct bgp_proto *src = (SRC->proto == &proto_bgp) ? (struct bgp_proto *) SRC : NULL;
 
@@ -1719,7 +1719,7 @@ bgp_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED)
 static ea_list *
 bgp_update_attrs(struct bgp_proto *p, struct bgp_channel *c, rte *e, ea_list *attrs0, struct linpool *pool)
 {
-  struct proto *SRC = e->attrs->src->proto;
+  struct proto *SRC = e->src->proto;
   struct bgp_proto *src = (SRC->proto == &proto_bgp) ? (void *) SRC : NULL;
   struct bgp_export_state s = { .proto = p, .channel = c, .pool = pool, .src = src, .route = e, .mpls = c->desc->mpls };
   ea_list *attrs = attrs0;
@@ -1874,7 +1874,7 @@ bgp_get_neighbor(rte *r)
     return as;
 
   /* If AS_PATH is not defined, we treat rte as locally originated */
-  struct bgp_proto *p = (void *) r->attrs->src->proto;
+  struct bgp_proto *p = (void *) r->src->proto;
   return p->cf->confederation ?: p->local_as;
 }
 
@@ -1904,8 +1904,8 @@ rte_stale(rte *r)
 int
 bgp_rte_better(rte *new, rte *old)
 {
-  struct bgp_proto *new_bgp = (struct bgp_proto *) new->attrs->src->proto;
-  struct bgp_proto *old_bgp = (struct bgp_proto *) old->attrs->src->proto;
+  struct bgp_proto *new_bgp = (struct bgp_proto *) new->src->proto;
+  struct bgp_proto *old_bgp = (struct bgp_proto *) old->src->proto;
   eattr *x, *y;
   u32 n, o;
 
@@ -2049,8 +2049,8 @@ bgp_rte_better(rte *new, rte *old)
 int
 bgp_rte_mergable(rte *pri, rte *sec)
 {
-  struct bgp_proto *pri_bgp = (struct bgp_proto *) pri->attrs->src->proto;
-  struct bgp_proto *sec_bgp = (struct bgp_proto *) sec->attrs->src->proto;
+  struct bgp_proto *pri_bgp = (struct bgp_proto *) pri->src->proto;
+  struct bgp_proto *sec_bgp = (struct bgp_proto *) sec->src->proto;
   eattr *x, *y;
   u32 p, s;
 
@@ -2131,7 +2131,7 @@ same_group(rte *r, u32 lpref, u32 lasn)
 static inline int
 use_deterministic_med(rte *r)
 {
-  struct proto *P = r->attrs->src->proto;
+  struct proto *P = r->src->proto;
   return (P->proto == &proto_bgp) && ((struct bgp_proto *) P)->cf->deterministic_med;
 }
 
diff --git a/proto/bgp/packets.c b/proto/bgp/packets.c
index 005c7397..83e09955 100644
--- a/proto/bgp/packets.c
+++ b/proto/bgp/packets.c
@@ -1340,9 +1340,6 @@ bgp_rte_update(struct bgp_parse_state *s, net_addr *n, u32 path_id, rta *a0)
   {
     s->last_src = rt_get_source(&s->proto->p, path_id);
     s->last_id = path_id;
-
-    rta_free(s->cached_rta);
-    s->cached_rta = NULL;
   }
 
   if (!a0)
@@ -1355,8 +1352,6 @@ bgp_rte_update(struct bgp_parse_state *s, net_addr *n, u32 path_id, rta *a0)
   /* Prepare cached route attributes */
   if (s->cached_rta == NULL)
   {
-    a0->src = s->last_src;
-
     /* Workaround for rta_lookup() breaking eattrs */
     ea_list *ea = a0->eattrs;
     s->cached_rta = rta_lookup(a0);
@@ -1365,6 +1360,7 @@ bgp_rte_update(struct bgp_parse_state *s, net_addr *n, u32 path_id, rta *a0)
 
   rte e0 = {
     .attrs = rta_clone(s->cached_rta),
+    .src = s->last_src,
   };
 
   rte_update(&(s->channel->c), n, &e0);
diff --git a/proto/mrt/mrt.c b/proto/mrt/mrt.c
index 275a2f5e..e28fe4d2 100644
--- a/proto/mrt/mrt.c
+++ b/proto/mrt/mrt.c
@@ -469,9 +469,9 @@ mrt_rib_table_entry(struct mrt_table_dump_state *s, rte *r)
 
 #ifdef CONFIG_BGP
   /* Find peer index */
-  if (r->attrs->src->proto->proto == &proto_bgp)
+  if (r->src->proto->proto == &proto_bgp)
   {
-    struct bgp_proto *p = (void *) r->attrs->src->proto;
+    struct bgp_proto *p = (void *) r->src->proto;
     struct mrt_peer_entry *n =
       HASH_FIND(s->peer_hash, PEER, p->remote_id, p->remote_as, p->remote_ip);
 
@@ -485,7 +485,7 @@ mrt_rib_table_entry(struct mrt_table_dump_state *s, rte *r)
 
   /* Path Identifier */
   if (s->add_path)
-    mrt_put_u32(b, r->attrs->src->private_id);
+    mrt_put_u32(b, r->src->private_id);
 
   /* Route Attributes */
   mrt_put_u16(b, 0);
@@ -516,7 +516,7 @@ mrt_rib_table_dump(struct mrt_table_dump_state *s, net *n, int add_path)
       continue;
 
     /* Skip routes that should be reported in the other phase */
-    if (!s->always_add_path && (!rt->attrs->src->private_id != !s->add_path))
+    if (!s->always_add_path && (!rt->src->private_id != !s->add_path))
     {
       s->want_add_path = 1;
       continue;
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index f63de684..396f9ece 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -478,7 +478,7 @@ ospf_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED)
   rte *e = *new;
 
   /* Reject our own routes */
-  if (e->attrs->src->proto == P)
+  if (e->src->proto == P)
     return -1;
 
   /* Do not export routes to stub areas */
diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c
index 1121cd96..a754d3b8 100644
--- a/proto/ospf/rt.c
+++ b/proto/ospf/rt.c
@@ -2047,7 +2047,6 @@ again1:
     if (nf->n.type) /* Add the route */
     {
       rta a0 = {
-	.src = p->p.main_source,
 	.source = nf->n.type,
 	.scope = SCOPE_UNIVERSE,
 	.dest = RTD_UNICAST,
@@ -2096,7 +2095,10 @@ again1:
 	    .u.data = nf->n.rid,
 	  };
 
-	rte e0 = { .attrs = rta_lookup(&a0), };
+	rte e0 = {
+	  .attrs = rta_lookup(&a0),
+	  .src = p->p.main_source,
+	};
 
 	rta_free(nf->old_rta);
 	nf->old_rta = rta_clone(e0.attrs);
diff --git a/proto/perf/perf.c b/proto/perf/perf.c
index a6681592..0989b9fe 100644
--- a/proto/perf/perf.c
+++ b/proto/perf/perf.c
@@ -143,7 +143,6 @@ perf_loop(void *data)
 
     if (!p->attrs_per_rte || !(i % p->attrs_per_rte)) {
       struct rta a0 = {
-	.src = p->p.main_source,
 	.source = RTS_PERF,
 	.scope = SCOPE_UNIVERSE,
 	.dest = RTD_UNICAST,
@@ -163,7 +162,10 @@ perf_loop(void *data)
 
   for (uint i=0; i<N; i++)
   {
-    rte e0 = { .attrs = p->data[i].a, };
+    rte e0 = {
+      .attrs = p->data[i].a,
+      .src = p->p.main_source,
+    };
     rte_update(P->main_channel, &(p->data[i].net), &e0);
   }
 
diff --git a/proto/rip/rip.c b/proto/rip/rip.c
index cf50a4a8..ad62ca0a 100644
--- a/proto/rip/rip.c
+++ b/proto/rip/rip.c
@@ -145,7 +145,6 @@ rip_announce_rte(struct rip_proto *p, struct rip_entry *en)
   {
     /* Update */
     rta a0 = {
-      .src = p->p.main_source,
       .pref = p->p.main_channel->preference,
       .source = RTS_RIP,
       .scope = SCOPE_UNIVERSE,
@@ -210,6 +209,7 @@ rip_announce_rte(struct rip_proto *p, struct rip_entry *en)
 
     rte e0 = {
       .attrs = &a0,
+      .src = p->p.main_source,
     };
 
     rte_update(p->p.main_channel, en->n.addr, &e0);
diff --git a/proto/rpki/rpki.c b/proto/rpki/rpki.c
index 9589b7c9..df974acc 100644
--- a/proto/rpki/rpki.c
+++ b/proto/rpki/rpki.c
@@ -121,14 +121,16 @@ rpki_table_add_roa(struct rpki_cache *cache, struct channel *channel, const net_
   struct rpki_proto *p = cache->p;
 
   rta a0 = {
-    .src = p->p.main_source,
     .pref = channel->preference,
     .source = RTS_RPKI,
     .scope = SCOPE_UNIVERSE,
     .dest = RTD_NONE,
   };
 
-  rte e0 = { .attrs = &a0 };
+  rte e0 = {
+    .attrs = &a0,
+    .src = p->p.main_source,
+  };
 
   rte_update(channel, &pfxr->n, &e0);
 }
diff --git a/proto/static/static.c b/proto/static/static.c
index ff66589c..db805a66 100644
--- a/proto/static/static.c
+++ b/proto/static/static.c
@@ -56,7 +56,6 @@ static void
 static_announce_rte(struct static_proto *p, struct static_route *r)
 {
   rta *a = allocz(RTA_MAX_SIZE);
-  a->src = static_get_source(p, r->index);
   a->source = RTS_STATIC;
   a->scope = SCOPE_UNIVERSE;
   a->dest = r->dest;
@@ -103,7 +102,10 @@ static_announce_rte(struct static_proto *p, struct static_route *r)
     return;
 
   /* We skip rta_lookup() here */
-  rte e0 = { .attrs = a }, *e = &e0;
+  rte e0 = {
+    .attrs = a,
+    .src = static_get_source(p, r->index),
+  }, *e = &e0;
 
   if (r->cmds)
   {
diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c
index bf6e43a2..00655213 100644
--- a/sysdep/unix/krt.c
+++ b/sysdep/unix/krt.c
@@ -301,6 +301,7 @@ krt_learn_announce_update(struct krt_proto *p, rte *e)
 {
   rte e0 = {
     .attrs = rta_clone(e->attrs),
+    .src = p->p.main_source,
   };
 
   rte_update(p->p.main_channel, e->net->n.addr, &e0);
@@ -877,7 +878,7 @@ krt_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED)
   // struct krt_proto *p = (struct krt_proto *) P;
   rte *e = *new;
 
-  if (e->attrs->src->proto == P)
+  if (e->src->proto == P)
     return -1;
 
   if (!krt_capable(e))