Fix typo about uesimtun number

Change-Id: I33e89d93d3f36d2ce4e2fc373834aadd7284a9e1
diff --git a/deployment/deploymentueransim.rst b/deployment/deploymentueransim.rst
index 1dab416..a3b07db 100644
--- a/deployment/deploymentueransim.rst
+++ b/deployment/deploymentueransim.rst
@@ -131,8 +131,8 @@
            TX packets 558  bytes 46516 (46.5 KB)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
 
-   node1:~$ ping -I uesimtun1 8.8.8.8
-   PING 8.8.8.8 (8.8.8.8) from 172.250.237.124 uesimtun1: 56(84) bytes of data.
+   node1:~$ ping -I uesimtun0 8.8.8.8
+   PING 8.8.8.8 (8.8.8.8) from 172.250.237.124 uesimtun0: 56(84) bytes of data.
    64 bytes from 8.8.8.8: icmp_seq=1 ttl=111 time=14.4 ms
    64 bytes from 8.8.8.8: icmp_seq=2 ttl=111 time=14.4 ms
    ^C