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Support ping from outside network in 1:1 NAT (VPP-695)

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Change-Id: Iec8fd4c2bd26874bd8bda82172af797e9b92592c
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
This commit is contained in:
Juraj Sloboda
2017-04-14 03:24:45 +02:00
committed by Ole Trøan
parent 977c1cbc1d
commit d367768270
5 changed files with 90 additions and 46 deletions
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32
test/test_snat.py
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@ -560,7 +560,7 @@ class TestSNAT(MethodHolder):
self.verify_capture_out_with_icmp_errors(capture)
def test_ping_out_interface_from_outside(self):
""" Ping SNAT out interface from outside """
""" Ping SNAT out interface from outside network """
self.snat_add_address(self.snat_addr)
self.vapi.snat_interface_add_del_feature(self.pg0.sw_if_index)
@ -587,6 +587,36 @@ class TestSNAT(MethodHolder):
"(outside network):", packet))
raise
def test_ping_internal_host_from_outside(self):
""" Ping internal host from outside network """
self.snat_add_static_mapping(self.pg0.remote_ip4, self.snat_addr)
self.vapi.snat_interface_add_del_feature(self.pg0.sw_if_index)
self.vapi.snat_interface_add_del_feature(self.pg1.sw_if_index,
is_inside=0)
# out2in
pkt = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
IP(src=self.pg1.remote_ip4, dst=self.snat_addr, ttl=64) /
ICMP(id=self.icmp_id_out, type='echo-request'))
self.pg1.add_stream(pkt)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg0.get_capture(1)
self.verify_capture_in(capture, self.pg0, packet_num=1)
self.assert_equal(capture[0][IP].proto, IP_PROTOS.icmp)
# in2out
pkt = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, ttl=64) /
ICMP(id=self.icmp_id_in, type='echo-reply'))
self.pg0.add_stream(pkt)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
capture = self.pg1.get_capture(1)
self.verify_capture_out(capture, same_port=True, packet_num=1)
self.assert_equal(capture[0][IP].proto, IP_PROTOS.icmp)
def test_static_in(self):
""" SNAT 1:1 NAT initialized from inside network """