The DNS address provided is used by the test to ping. In osmo-ggsn, we
configured the DNS to be the shared address between GTPC and GTPU. In
open5gs, the addresses are different. Hence, let's pass the GTPU address
instead of the GTPC address to make the setup easier (no need to have
proper routing working between UPFD and SMFD containers).
Change-Id: I2a452ad871612d1c88b94579dadbe62b718b1475
This new setup allows running TTCN3 GGSN_Tests against open5gs, which
will soon gain GTPv1C support.
Change-Id: Ia6c122fce951d369a5d2362cbe99d10d61c15f49
Pau Espin