diff --git a/input/grid5000/ipv4.yaml b/input/grid5000/ipv4.yaml
index 948425c9d2c8d759731232305eb9ef87b1d3a032..db8f520994baa9eee385c746f9adc5903324150c 100644
--- a/input/grid5000/ipv4.yaml
+++ b/input/grid5000/ipv4.yaml
@@ -86,7 +86,7 @@ ipv4:
       rennes abacus18 eth0 0 0 13 17
       rennes abacus19 eth0 0 0 13 18
       rennes abacus20 eth0 0 0 13 19
-      rennes abacus21 eth0 0 0 13 20
+      rennes abacus21 eth2 0 0 13 20
       rennes abacus22 eth0 0 0 13 21
       rennes abacus25 eth0 0 0 13 24
       rennes roazhon1 eth0 0 0 14 0
diff --git a/lib/refrepo/net_names_mapping.yaml b/lib/refrepo/net_names_mapping.yaml
index 643a3d50d16d2cc36db754243cb4e4e5059afce3..27ac06af23f9d68f66fd4a20b08a1b48b986f0d1 100644
--- a/lib/refrepo/net_names_mapping.yaml
+++ b/lib/refrepo/net_names_mapping.yaml
@@ -60,6 +60,11 @@ abacus18:
 abacus19:
   eno3: eth0
   eno4: eth1
+abacus21:
+  eno33npo: eth0
+  eno34np1: eth1
+  eno1: eth2
+  eno2: eth3
 abacus25:
   ens10f0: eth0
   ens10f1: eth1