diff --git a/ttcn3-ggsn-test/GGSN_Tests.cfg b/ttcn3-ggsn-test/GGSN_Tests.cfg
index 064bf37e..36603c84 100644
--- a/ttcn3-ggsn-test/GGSN_Tests.cfg
+++ b/ttcn3-ggsn-test/GGSN_Tests.cfg
@@ -17,6 +17,7 @@ GGSN_Tests.m_ggsn_ip_gtpc := "172.18.3.201"
 GGSN_Tests.m_ggsn_ip_gtpu := "172.18.3.201"
 # GGSN announced DNS address
 GGSN_Tests.m_ggsn_ip4_dns1 := "172.18.3.201"
+GGSN_Tests.m_ggsn_ip6_dns1 := "fd02:db8:3::201"
 
 [EXECUTE]
 GGSN_Tests.control
diff --git a/ttcn3-ggsn-test/osmo-ggsn.cfg b/ttcn3-ggsn-test/osmo-ggsn.cfg
index 7dff25f2..972ee931 100644
--- a/ttcn3-ggsn-test/osmo-ggsn.cfg
+++ b/ttcn3-ggsn-test/osmo-ggsn.cfg
@@ -58,7 +58,7 @@ ggsn ggsn0
   tun-device tun6
   type-support v6
   ipv6 prefix dynamic 2001:780:44:2000:0:0:0:0/56
-  ipv6 dns 0 2001:4860:4860::8888
+  ipv6 dns 0 fd02:db8:3::201
   ipv6 dns 1 2001:4860:4860::8844
   ipv6 ifconfig 2001:780:44:2000:0:0:0:0/56
   no shutdown
@@ -71,7 +71,7 @@ ggsn ggsn0
   ip dns 1 8.8.8.8
   ip ifconfig 176.16.46.0/24
   ipv6 prefix dynamic 2001:780:44:2100:0:0:0:0/56
-  ipv6 dns 0 2001:4860:4860::8888
+  ipv6 dns 0 fd02:db8:3::201
   ipv6 dns 1 2001:4860:4860::8844
   ipv6 ifconfig 2001:780:44:2100:0:0:0:0/56
   no shutdown