def test_task10(riot_ctrl, log_nodes):
# pylint: disable=R0914
node = riot_ctrl(0, APP, Shell, port=TAP)
host_netif = bridge(TAP)
host_lladdr = get_link_local(host_netif)
node_netifs = NETIF_PARSER.parse(node.ifconfig_list())
node_netif = next(iter(node_netifs))
node_hwaddr = node_netifs[node_netif]["hwaddr"]
node_lladdr = [
addr["addr"] for addr in node_netifs[node_netif]["ipv6_addrs"]
if addr["scope"] == "link"
][0]
ip = IPv6(src=host_lladdr, dst=node_lladdr)
stop_id = 0xc07c
test_id = 0xb488
sniffer = AsyncSniffer(
stop_filter=lambda p: ICMPv6EchoReply in p and p[ICMPv6EchoReply].id ==
stop_id,
iface=host_netif,
)
sniffer.start()
time.sleep(.1)
max_pkts = _max_encapsulations()
for i in range(max_pkts):
start = time.time()
ips = ip
for _ in range(i):
ips /= ip
sendp(Ether(dst=node_hwaddr) / ips /
ICMPv6EchoRequest(id=test_id, seq=i),
iface=host_netif,
verbose=log_nodes)
stop = time.time()
if (stop - start) <= 0.001:
time.sleep(0.001 - (stop - start))
# send stop condition for sniffer
sendp(Ether(dst=node_hwaddr) / ip / ICMPv6EchoRequest(id=stop_id),
iface=host_netif,
verbose=log_nodes)
sniffer.join()
pkts = sniffer.results
requests = [
p for p in pkts
if ICMPv6EchoRequest in p and p[ICMPv6EchoRequest].id == test_id
]
replies = [
p for p in pkts
if ICMPv6EchoReply in p and p[ICMPv6EchoReply].id == test_id
]
assert len(requests) <= max_pkts
assert len(replies) <= max_pkts
assert (len(replies) / max_pkts) > .96
reply_seqs = [r[ICMPv6EchoReply].seq for r in replies]
reply_seq_occs = [reply_seqs.count(seq) for seq in reply_seqs]
# no sequence number occurs more than once in the replies
assert not any(occ > 1 for occ in reply_seq_occs)
def test_scapy_sniffer(self):
send_data = [
Ether(src="99:54:8f:91:12:f6", dst="44:35:a2:a6:d0:bd") /
IPv6(src="fe80::1", dst="fe80::2") / ICMPv6EchoRequest(),
Ether(src="44:35:a2:a6:d0:bd", dst="99:54:8f:91:12:f6") /
IPv6(src="fe80::2", dst="fe80::1") / ICMPv6EchoReply(),
Ether(src="1f:db:ed:9c:26:6e", dst="18:39:3c:e8:1f:ad") /
IPv6(src="2001:db8:8a5a:4020:f160:162:c83d:527d",
dst="2001:db8:2932:29c9:35eb:9377:ae68:634d") /
UDP(sport=31245, dport=8788) / b"abcdef",
Ether(src="18:39:3c:e8:1f:ad", dst="1f:db:ed:9c:26:6e") /
IPv6(src="2001:db8:2932:29c9:35eb:9377:ae68:634d",
dst="2001:db8:8a5a:4020:f160:162:c83d:527d") /
UDP(sport=8788, dport=31245) / b"12345",
]
sniffer = AsyncSniffer()
sniffer.start()
self.spawn.expect(r"Initializing L2listen with arguments")
self.spawn.expect(r"Bound socket to '(.*)'\s")
remote = self.spawn.match.group(1)
# wait a bit to avoid race where socket is not bound yet
time.sleep(.5)
for packet in send_data:
time.sleep(.001) # some spacing for test stability
self.assertEqual(len(raw(packet)),
self.comm_sock.sendto(raw(packet), remote))
for packet in send_data:
self.spawn.expect(r"Receiving on L2listen with arguments")
results = sniffer.stop()
self.assertIsNotNone(results)
self.assertEqual(len(send_data), len(results))
for pkt in send_data:
self.assertIn(Ether(raw(pkt)), results)
def craft(hdr, fl):
helpers.Utils.set_fl(hdr, fl)
pkt = hdr / IPv6() / ICMPv6EchoRequest()
pkt = pkt.__class__(str(pkt))
return ([pkt], {fl: [pkt]})
def iterate_bgp_prefix(prefix):
prefixlen = prefix.prefixlen
#ie. number of possible network prefixes
for i in range(2**(64 - prefixlen)):
#only interested in network half of prefix
#shift i left 64 bits so only this half of the address is searched
#use arbitrary value 1 for host identifier half
# prefix_iteration = prefix.network_address + (i << 64) + ipaddress.IPv6Address("::1000:0:1:2")
# prefix_iteration = prefix.network_address + (i << 64) + 0x200e
prefix_iteration = prefix.network_address + (i << 64) + 1
#print(prefix_iteration)
icmp_pkt = IPv6(dst=str(prefix_iteration)) / ICMPv6EchoRequest()
#send - send packets at layer 3
#sr - send packets and match reply
#sr1 - send packets, but only match first reply
res = sr1(icmp_pkt, timeout=15)
#invalid/unadvertised prefix or host identifier, DROP policy on final hop
if res == None:
print("Timeout, no response received.")
#note: .show() displays None, but prints packet details before print line
elif ICMPv6EchoReply in res:
print("Echo reply - host found:\n%s" % res.show())
#code 3 = Destination Unreachable: Address Unreachable
#ie. live network prefix found, no matching host ID
elif ICMPv6DestUnreach in res:
if res[ICMPv6DestUnreach].code == 3:
print("Destination unreachable:\n%s, %s" %
(res.show(), "Address Unreachable"))
#code 0 = Destination Unreachable: No Route
#invalid/unadvertised prefix, REJECT policy on final hop
elif res[ICMPv6DestUnreach].code == 0:
print("Destination unreachable:\n%s, %s" %
(res.show(), "No route"))
else:
print("Other: %s" % res.show())
def iterate_interface_identifier(prefix, oui):
#ie. iterate through the missing 24 bits in IID, starting at 1
#for i in range(2**24):
responses = []
for i in range(600):
#need 0xfffe for actual OUI testing, ignore for initial tests
host_iteration = prefix.network_address + (0xf << 16) + i
#host_iteration = prefix + oui + 0xfffe + i
icmp_pkt = IPv6(dst=str(host_iteration)) / ICMPv6EchoRequest()
#icmp_pkt.show()
#print(host_iteration)
#'''
#res = sr1(icmp_pkt, timeout=5)
res = sr1(icmp_pkt, timeout=2, filter="ip6")
if res == None:
print("Timeout, no response received within limit. %s" %
icmp_pkt.dst)
elif ICMPv6DestUnreach in res:
print("Destination unreachable: code %s" % res.code)
elif ICMPv6EchoReply in res:
print("Echo reply: %s" % res.src)
responses.append(res.src)
else:
print("Other: %s" % res.show())
#'''
print("\n\n===========\nFinal responses: %d\n%s\n\n" %
(len(responses), responses))
def run(self):
"""Sends ICMPv6 echo request packets marked with the data upribox to the
IPv6 all nodes multicast address.
Received echo replies are processed by a SniffThread.
"""
while True:
send(IPv6(dst=self._MULTICAST_DEST) / ICMPv6EchoRequest(data=self._DATA), iface=self.interface)
time.sleep(self._SLEEP)
def test_scapy_srp1(self):
send_data = Ether(src="99:54:8f:91:12:f6", dst="44:35:a2:a6:d0:bd") / \
IPv6(src="fe80::1", dst="fe80::2") / \
ICMPv6EchoRequest()
exp_reply = Ether(src="44:35:a2:a6:d0:bd", dst="99:54:8f:91:12:f6") / \
IPv6(src="fe80::2", dst="fe80::1") / \
ICMPv6EchoReply()
self._test_sndrcv1(srp1, "L2socket", send_data, exp_reply)
def sendip6ping(self):
"""
send a IPv6 Icmp Ping
"""
if self.mac is not None:
if self.linklocal is None:
self.linklocal = mac2ipv6(self.mac)
if self._verbose > 1:
print("sendip6ping:", self.linklocal, self.name)
send(IPv6(dst=self.linklocal) / ICMPv6EchoRequest() / "whosthere")
def ping_ipv6(self, target):
"""Request an ICMP echo reply from the target host via IPv6.
Returns bool if the target responded.
"""
random_id = self.random_icmp_id()
packet = IPv6(dst=target) / ICMPv6EchoRequest(id=random_id)
try:
answer = self._send_packet(packet)
return answer.payload.id == random_id
except (TypeError, ValueError, AttributeError, KeyError):
#traceback.print_exc()
pass
return False
def exfil_ipv6(self, target, payload):
"""Exfiltrate the payload ICMP echo requests over IPv6.
Data is simply stored in the ICMP packet's payload without modification.
"""
try:
for chunk in payload.chunk_iter():
random_id = self.random_icmp_id()
packet = IPv6(dst=target) / ICMPv6EchoRequest(id=random_id,
data=chunk)
answer = self._send_packet(packet)
if chunk not in bytes(answer.payload.data):
return False
except (TypeError, ValueError, AttributeError, KeyError):
#traceback.print_exc()
return False
return True
def craft(hdr, fl):
snd = []
rcv = {}
for fl in range(fl, fl+nbrFlux):
Utils.set_fl(hdr, fl)
sip = 'fc00:2:0:1::1' # Adresses don't rlly matter
dip = 'fc00:2:0:2::1'
packets_snd = fragment6(IPv6(src=sip, dst=dip) / IPv6ExtHdrFragment() / ICMPv6EchoRequest(data='A'*300), 100)
packets_snd = [pkt.__class__(str(hdr/pkt)) for pkt in packets_snd]
packet_excepted = pkt.__class__(str(hdr/IPv6(src=sip, dst=dip) / ICMPv6EchoRequest(data='A'*300)))
snd.extend(packets_snd)
rcv[fl] = [packet_excepted]
return (snd, rcv)
def iterate_interface_identifier_no_reply(prefix, oui):
#ie. iterate through the missing 24 bits in IID, starting at 1
#for i in range(2**24):
responses = []
#uni testing
for i in range(600):
#sky testing
#for i in range(64600, 64735):
#for i in range(64715, 64725):
#need 0xfffe for actual OUI testing, ignore for initial tests
#uni network testing
#host_iteration = prefix.network_address + (0xf << 16) + i
host_iteration = prefix.network_address + (0xf << 16) + i
#sky network testing
#host_iteration = ipaddress.IPv6Address("2a02:c7f:b09f:d200:40e6:2373:982c:0") + i
#genuine OUI testing
#host_iteration = prefix + oui + 0xfffe + i
icmp_pkt = IPv6(dst=str(host_iteration)) / ICMPv6EchoRequest()
#icmp_pkt.show()
#print(host_iteration)
#'''
#res = sr1(icmp_pkt, timeout=5)
#res = sr1(icmp_pkt, timeout=2, filter="ip6")
send(icmp_pkt, inter=0, verbose=False)
#time.sleep(1/64) sends around 43 packets per second
#time.sleep(1/100) sends around 55.5 packets per second
#1/150 sends around ? packets per second
#1/200 sends around 88.7 packets per second
#no sleep call sends around 181 packets per second
#time.sleep(1)
#time.sleep(1/1.5)
#time.sleep(1/2)
#time.sleep(1/5)
#time.sleep(1/10)
#time.sleep(1/25)
#time.sleep(1/50)
#time.sleep(1/100)
#time.sleep(1/150)
#time.sleep(1/200)
if i % 10000 == 0:
print("sent: %s" % host_iteration)
def test_00_icmp_accepted(self):
for dst in [self.PROXY_HOST, self.ALT_HOST]:
pkt = \
IP(dst=dst) / \
UDP(sport=12345, dport=19523) / \
GLBGUE(private_data=GLBGUEChainedRouting(hops=[self.ALT_HOST])) / \
IPv6(src=self.SELF_HOST_V6, dst=self.V4_TO_V6[dst]) / \
ICMPv6EchoRequest()
print repr(pkt)
# expect a ICMP echo response back from self.PROXY_HOST (decapsulated)
resp_ip = self._sendrecv6(pkt,
lfilter=lambda p: isinstance(p, IPv6) and
isinstance(p.payload, ICMPv6EchoReply))
assert isinstance(resp_ip, IPv6)
assert_equals(resp_ip.src, self.V4_TO_V6[dst])
assert_equals(resp_ip.dst, self.SELF_HOST_V6)
resp_icmp = resp_ip.payload
assert isinstance(resp_icmp, ICMPv6EchoReply)
def srv6_traceroute(destination, result_table, packet_len, max_ttl, sr_hops,
verbosity, timeout):
ttl = 1
while ttl <= max_ttl:
p = sr1(IPv6(dst=destination, hlim=ttl) /
IPv6ExtHdrSegmentRouting(addresses=sr_hops) /
ICMPv6EchoRequest(data=RandString(packet_len)),
timeout=timeout,
verbose=verbosity)
if p is not None:
if not ttl in result_table:
result_table[ttl] = {}
result_table[ttl]["SR"] = p[IPv6].src
else:
result_table[ttl]["SR"] = "-"
ttl += 1
return result_table
def icmp_traceroute(destination, result_table, packet_len, verbosity, timeout):
ttl = 1
while 1:
start_time = time.time()
p = sr1(IPv6(dst=destination, hlim=ttl) /
ICMPv6EchoRequest(data=RandString(packet_len)),
verbose=verbosity,
timeout=timeout)
end_time = time.time()
latency = ((end_time - start_time) * 1000)
if not ttl in result_table:
result_table[ttl] = {}
if p is not None:
if p[IPv6].src.startswith('fe'):
result_table[ttl]["ASN"] = "Link local"
else:
result_table[ttl]["ASN"] = get_asn_description(p[IPv6].src)
result_table[ttl]["ICMP"] = p[IPv6].src
if latency > 2000:
result_table[ttl]["latency"] = "Timeout"
else:
result_table[ttl]["latency"] = str(latency)
if ICMPv6EchoReply in p:
break
else:
result_table[ttl]["latency"] = "-"
result_table[ttl]["ASN"] = "-"
result_table[ttl]["ICMP"] = "-"
ttl += 1
max_hops = ttl
return (max_hops, result_table)
def test_03_icmp_echo_request(self):
test_packet = Ether() / IPv6(
src='fd91:79d3:d621::1234',
dst='fdb4:98ce:52d4::42') / ICMPv6EchoRequest()
self.sendp(test_packet, iface=self.IFACE_NAME_PY)
packet = self.wait_for_packet(
self.eth_tx, lambda packet: isinstance(
packet.payload, IP) and isinstance(packet.payload.payload, UDP)
and packet.payload.payload.dport == self.DIRECTOR_GUE_PORT)
assert isinstance(packet, Ether)
assert_equals(packet.dst, self.py_side_mac)
fou_ip = packet.payload
assert isinstance(fou_ip, IP) # Expecting an IP packet
assert_equals(fou_ip.src, '65.65.65.65')
assert_equals(fou_ip.dst, '5.6.7.8')
fou_udp = fou_ip.payload
assert isinstance(fou_udp, UDP) # Expecting a FOU packet
assert_equals(fou_udp.dport, self.DIRECTOR_GUE_PORT)
glb_gue = fou_udp.payload
assert isinstance(
glb_gue,
GLBGUE) # Expecting a GUE packet (scapy will always map this)
assert_equals(glb_gue.private_data[0].hop_count, 1)
assert_equals(glb_gue.private_data[0].next_hop, 0)
assert_equals(glb_gue.private_data[0].hops, ['6.7.8.9'])
inner_ip = glb_gue.payload
assert isinstance(inner_ip, IPv6) # Expecting the inner IP packet
assert_equals(inner_ip.src, 'fd91:79d3:d621::1234')
assert_equals(inner_ip.dst, 'fdb4:98ce:52d4::42')
inner_tcp = inner_ip.payload
assert isinstance(inner_tcp,
ICMPv6EchoRequest) # Expecting the inner ICMP packet
# Check if destination are reachable
IODebug.displayDebugInfo("DEBUG 1: Checking if destination are reachable")
# Get remote MAC
if not cmdParams.mac_dst:
try:
cmdParams.mac_dst = get_remote_addr(cmdParams.target, cmdParams.ip_src, cmdParams.iface_out)
# If is level3 add a var
cmdParams.level = 2
# Set send function
cmdParams.send_function = sendp
except RuntimeError:
# Check if address is accesible without net level 2
test = sr1(IPv6(dst=cmdParams.target)/ICMPv6EchoRequest(), iface = cmdParams.iface_out, timeout=4, verbose = 0)
cmdParams.level = 3
# Set send function
cmdParams.send_function = send
if not test:
raise RuntimeError("Destination are not reachable")
# Run plugin
m_plugin_instances[P.run_mode].run(P, cmdParams)
def test_it_should_not_deliver_a_packet_from_tn4_on_ethx(self):
self.n.node(4).send(IPv6(src=str(self.n.node(4).global_ip()), dst=str(self.ethy_t.global_ip()))/ICMPv6EchoRequest())
self.assertEqual(0, len(self.ethx_s.sent))
def test_it_should_not_deliver_a_packet_from_tr1_if0_to_ethx(self):
self.n.router(1).send(IPv6(src=str(self.n.router(1).global_ip()), dst=str(self.ethx_t.global_ip()))/ICMPv6EchoRequest(), iface=0)
self.assertEqual(0, len(self.ethx_s.sent))
TCP(sport=31337, dport=80, flags="A") / "katran test pckt 02", # pkt 3; reply expected Ether(src="0x002", dst="0x2") / IP(src="192.168.1.1", dst="10.200.1.2") / TCP(sport=31337, dport=42, flags="A") / "katran test pckt 03", # pkt 4; reply expected Ether(src="0x002", dst="0x2") / IP(src="192.168.1.1", dst="10.200.1.3") / TCP(sport=31337, dport=80, flags="A") / "katran test pckt 04", # pkt 5; reply expected Ether(src="0x002", dst="0x2") / IPv6(src="fc00:2::1", dst="fc00:1::1") / TCP(sport=31337, dport=80, flags="A") / "katran test pckt 05", # pkt 6; reply expected Ether(src="0x002", dst="0x2") / IP(src="192.168.1.1", dst="10.200.1.3") / ICMP(type="echo-request") / "katran test pckt 06", # pkt 7; reply expected Ether(src="0x002", dst="0x2") / IPv6(src="fc00:2::1", dst="fc00:1::1") / ICMPv6EchoRequest() / "katran test pckt 07", # pkt 8; reply expected Ether(src="0x002", dst="0x2") / IP(src="192.168.100.1", dst="10.200.1.1") / ICMP(type="dest-unreach", code="fragmentation-needed") / IP(src="10.200.1.1", dst="192.168.1.1") / TCP(sport=80, dport=31337) / "katran test pckt 08", # pkt 9; reply expected Ether(src="0x002", dst="0x2") / IPv6(src="fc00:200::1", dst="fc00:1::1") / ICMPv6PacketTooBig() / IPv6(src="fc00:1::1", dst="fc00:2::1") / TCP(sport=80, dport=31337) / "katran test pckt 09", # pkt 10; will be droped on katran side Ether(src="0x002", dst="0x2") / IP(src="192.168.1.1", dst="10.200.1.1", ihl=6) / TCP(sport=31337, dport=80, flags="A") / "katran test pckt 10", # pkt 11; will be droped on katran side Ether(src="0x002", dst="0x2") /
def test_it_should_deliver_a_packet_from_tr3_on_ethx(self):
self.n.router(3).send(IPv6(src=str(self.n.router(3).link_local_ip(iface=1)), dst=str(self.ethx_t.link_local_ip()))/ICMPv6EchoRequest(), iface=1)
self.assertEqual(1, len(self.ethx_s.sent))
def main():
"""Send and receive IPsec packet."""
args = TrafficScriptArg([
'src_mac', 'dst_mac', 'src_ip', 'dst_ip', 'crypto_alg', 'crypto_key',
'integ_alg', 'integ_key', 'l_spi', 'r_spi'
], ['src_tun', 'dst_tun'])
rxq = RxQueue(args.get_arg('rx_if'))
txq = TxQueue(args.get_arg('tx_if'))
src_mac = args.get_arg('src_mac')
dst_mac = args.get_arg('dst_mac')
src_ip = args.get_arg('src_ip')
dst_ip = args.get_arg('dst_ip')
crypto_alg = args.get_arg('crypto_alg')
crypto_key = args.get_arg('crypto_key')
integ_alg = args.get_arg('integ_alg')
integ_key = args.get_arg('integ_key')
l_spi = int(args.get_arg('l_spi'))
r_spi = int(args.get_arg('r_spi'))
src_tun = args.get_arg('src_tun')
dst_tun = args.get_arg('dst_tun')
is_ipv4 = True
if 6 == ip_address(unicode(src_ip)).version:
is_ipv4 = False
tunnel_out = None
tunnel_in = None
if src_tun and dst_tun:
if is_ipv4:
tunnel_out = IP(src=src_tun, dst=dst_tun)
tunnel_in = IP(src=dst_tun, dst=src_tun)
else:
tunnel_out = IPv6(src=src_tun, dst=dst_tun)
tunnel_in = IPv6(src=dst_tun, dst=src_tun)
else:
src_tun = src_ip
dst_tun = dst_ip
sa_in = SecurityAssociation(ESP,
spi=r_spi,
crypt_algo=crypto_alg,
crypt_key=crypto_key,
auth_algo=integ_alg,
auth_key=integ_key,
tunnel_header=tunnel_in)
sa_out = SecurityAssociation(ESP,
spi=l_spi,
crypt_algo=crypto_alg,
crypt_key=crypto_key,
auth_algo=integ_alg,
auth_key=integ_key,
tunnel_header=tunnel_out)
sent_packets = []
if is_ipv4:
ip_pkt = IP(src=src_ip, dst=dst_ip) / \
ICMP()
ip_pkt = IP(str(ip_pkt))
else:
ip_pkt = IPv6(src=src_ip, dst=dst_ip) / \
ICMPv6EchoRequest()
ip_pkt = IPv6(str(ip_pkt))
e_pkt = sa_out.encrypt(ip_pkt)
pkt_send = Ether(src=src_mac, dst=dst_mac) / \
e_pkt
sent_packets.append(pkt_send)
txq.send(pkt_send)
pkt_recv = rxq.recv(2, sent_packets)
if pkt_recv is None:
raise RuntimeError('ESP packet Rx timeout')
if is_ipv4:
check_ipv4(pkt_recv, src_tun, dst_ip, src_ip, sa_in)
else:
check_ipv6(pkt_recv, src_tun, dst_ip, src_ip, sa_in)
sys.exit(0)
def test_it_should_not_deliver_a_packet_from_tn1_on_ethy(self):
self.n.node(1).send(IPv6(src=str(self.n.node(1).link_local_ip()), dst=str(self.ethx_t.link_local_ip()))/ICMPv6EchoRequest())
self.assertEqual(0, len(self.ethy_s.sent))
def test_it_should_deliver_a_packet_from_tn2_on_ethx(self):
self.n.node(2).send(IPv6(src=str(self.n.node(2).global_ip()), dst=str(self.ethx_t.global_ip()))/ICMPv6EchoRequest())
self.assertEqual(1, len(self.ethx_s.sent))
p = self.ethx_s.sent[0]
self.assertTrue(p.haslayer(Ether))
self.assertEqual('00:b0:d0:86:bb:f7', p.getlayer(Ether).src)
self.assertEqual('00:b0:d0:bb:cc:ff', p.getlayer(Ether).dst)
self.assertTrue(p.haslayer(IPv6))
self.assertEqual(self.n.node(2).global_ip().short_form(), p.getlayer(IPv6).src)
self.assertEqual(self.ethx_t.global_ip().short_form(), p.getlayer(IPv6).dst)
# Get remote MAC
if not cmdParams.mac_dst:
try:
cmdParams.mac_dst = get_remote_addr(cmdParams.target,
cmdParams.ip_src,
cmdParams.iface_out)
# If is level3 add a var
cmdParams.level = 2
# Set send function
cmdParams.send_function = sendp
except RuntimeError:
# Check if address is accesible without net level 2
test = sr1(IPv6(dst=cmdParams.target) / ICMPv6EchoRequest(),
iface=cmdParams.iface_out,
timeout=4,
verbose=0)
cmdParams.level = 3
# Set send function
cmdParams.send_function = send
if not test:
raise RuntimeError("Destination are not reachable")
#############Aquí tengo que Check if idl host destination are reachable
#IODebug.displayDebugInfo("DEBUG 1: Checking if destination are reachable")
""" Script to send icmpv6 data"""
import sys
import time
from scapy.all import Ether, ICMPv6EchoRequest, IPv6, sendp
dst = sys.argv[1]
print("dst: %s" % dst)
eth = Ether()
i = IPv6()
i.dst = dst # UE_IP
i.src = "2001::2"
q = ICMPv6EchoRequest()
packet_icmp = eth / i / q
for _ in range(1):
sendp(packet_icmp, iface="gtp_br0", count=1)
time.sleep(0.5)