def test_arp(self):
""" ARP """
#
# Generate some hosts on the LAN
#
self.pg1.generate_remote_hosts(11)
#
# Send IP traffic to one of these unresolved hosts.
# expect the generation of an ARP request
#
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[1].ip4) /
UDP(sport=1234, dport=1234) / Raw())
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_req(rx[0], self.pg1.local_mac, self.pg1.local_ip4,
self.pg1._remote_hosts[1].ip4)
#
# And a dynamic ARP entry for host 1
#
dyn_arp = VppNeighbor(self, self.pg1.sw_if_index,
self.pg1.remote_hosts[1].mac,
self.pg1.remote_hosts[1].ip4)
dyn_arp.add_vpp_config()
#
# now we expect IP traffic forwarded
#
dyn_p = (
Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[1].ip4) /
UDP(sport=1234, dport=1234) / Raw())
self.pg0.add_stream(dyn_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_ip(rx[0], self.pg1.local_mac, self.pg1.remote_hosts[1].mac,
self.pg0.remote_ip4, self.pg1._remote_hosts[1].ip4)
#
# And a Static ARP entry for host 2
#
static_arp = VppNeighbor(self,
self.pg1.sw_if_index,
self.pg1.remote_hosts[2].mac,
self.pg1.remote_hosts[2].ip4,
is_static=1)
static_arp.add_vpp_config()
static_p = (
Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[2].ip4) /
UDP(sport=1234, dport=1234) / Raw())
self.pg0.add_stream(static_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_ip(rx[0], self.pg1.local_mac, self.pg1.remote_hosts[2].mac,
self.pg0.remote_ip4, self.pg1._remote_hosts[2].ip4)
#
# flap the link. dynamic ARPs get flush, statics don't
#
self.pg1.admin_down()
self.pg1.admin_up()
self.pg0.add_stream(static_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_ip(rx[0], self.pg1.local_mac, self.pg1.remote_hosts[2].mac,
self.pg0.remote_ip4, self.pg1._remote_hosts[2].ip4)
self.pg0.add_stream(dyn_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_req(rx[0], self.pg1.local_mac, self.pg1.local_ip4,
self.pg1._remote_hosts[1].ip4)
#
# Send an ARP request from one of the so-far unlearned remote hosts
#
p = (
Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1._remote_hosts[3].mac) /
ARP(op="who-has",
hwsrc=self.pg1._remote_hosts[3].mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1._remote_hosts[3].ip4))
self.pg1.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_resp(rx[0], self.pg1.local_mac,
self.pg1._remote_hosts[3].mac, self.pg1.local_ip4,
self.pg1._remote_hosts[3].ip4)
#
# VPP should have learned the mapping for the remote host
#
self.assertTrue(
find_nbr(self, self.pg1.sw_if_index,
self.pg1._remote_hosts[3].ip4))
#
# Fire in an ARP request before the interface becomes IP enabled
#
self.pg2.generate_remote_hosts(4)
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg2.remote_hosts[3].ip4))
pt = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
Dot1Q(vlan=0) / ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg2.remote_hosts[3].ip4))
self.send_and_assert_no_replies(self.pg2, p,
"interface not IP enabled")
#
# Make pg2 un-numbered to pg1
#
self.pg2.set_unnumbered(self.pg1.sw_if_index)
#
# We should respond to ARP requests for the unnumbered to address
# once an attached route to the source is known
#
self.send_and_assert_no_replies(
self.pg2, p, "ARP req for unnumbered address - no source")
attached_host = VppIpRoute(
self, self.pg2.remote_hosts[3].ip4, 32,
[VppRoutePath("0.0.0.0", self.pg2.sw_if_index)])
attached_host.add_vpp_config()
self.pg2.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_arp_resp(rx[0], self.pg2.local_mac, self.pg2.remote_mac,
self.pg1.local_ip4, self.pg2.remote_hosts[3].ip4)
self.pg2.add_stream(pt)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_arp_resp(rx[0], self.pg2.local_mac, self.pg2.remote_mac,
self.pg1.local_ip4, self.pg2.remote_hosts[3].ip4)
#
# A neighbor entry that has no associated FIB-entry
#
arp_no_fib = VppNeighbor(self,
self.pg1.sw_if_index,
self.pg1.remote_hosts[4].mac,
self.pg1.remote_hosts[4].ip4,
is_no_fib_entry=1)
arp_no_fib.add_vpp_config()
#
# check we have the neighbor, but no route
#
self.assertTrue(
find_nbr(self, self.pg1.sw_if_index,
self.pg1._remote_hosts[4].ip4))
self.assertFalse(find_route(self, self.pg1._remote_hosts[4].ip4, 32))
#
# pg2 is unnumbered to pg1, so we can form adjacencies out of pg2
# from within pg1's subnet
#
arp_unnum = VppNeighbor(self, self.pg2.sw_if_index,
self.pg1.remote_hosts[5].mac,
self.pg1.remote_hosts[5].ip4)
arp_unnum.add_vpp_config()
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[5].ip4) /
UDP(sport=1234, dport=1234) / Raw())
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_ip(rx[0], self.pg2.local_mac, self.pg1.remote_hosts[5].mac,
self.pg0.remote_ip4, self.pg1._remote_hosts[5].ip4)
#
# ARP requests from hosts in pg1's subnet sent on pg2 are replied to
# with the unnumbered interface's address as the source
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1.remote_hosts[6].ip4))
self.pg2.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_arp_resp(rx[0], self.pg2.local_mac, self.pg2.remote_mac,
self.pg1.local_ip4, self.pg1.remote_hosts[6].ip4)
#
# An attached host route out of pg2 for an undiscovered hosts generates
# an ARP request with the unnumbered address as the source
#
att_unnum = VppIpRoute(self, self.pg1.remote_hosts[7].ip4, 32,
[VppRoutePath("0.0.0.0", self.pg2.sw_if_index)])
att_unnum.add_vpp_config()
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[7].ip4) /
UDP(sport=1234, dport=1234) / Raw())
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_arp_req(rx[0], self.pg2.local_mac, self.pg1.local_ip4,
self.pg1._remote_hosts[7].ip4)
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1.remote_hosts[7].ip4))
self.pg2.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_arp_resp(rx[0], self.pg2.local_mac, self.pg2.remote_mac,
self.pg1.local_ip4, self.pg1.remote_hosts[7].ip4)
#
# An attached host route as yet unresolved out of pg2 for an
# undiscovered host, an ARP requests begets a response.
#
att_unnum1 = VppIpRoute(
self, self.pg1.remote_hosts[8].ip4, 32,
[VppRoutePath("0.0.0.0", self.pg2.sw_if_index)])
att_unnum1.add_vpp_config()
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1.remote_hosts[8].ip4))
self.pg2.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg2.get_capture(1)
self.verify_arp_resp(rx[0], self.pg2.local_mac, self.pg2.remote_mac,
self.pg1.local_ip4, self.pg1.remote_hosts[8].ip4)
#
# Send an ARP request from one of the so-far unlearned remote hosts
# with a VLAN0 tag
#
p = (
Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1._remote_hosts[9].mac) /
Dot1Q(vlan=0) / ARP(op="who-has",
hwsrc=self.pg1._remote_hosts[9].mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1._remote_hosts[9].ip4))
self.pg1.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_resp(rx[0], self.pg1.local_mac,
self.pg1._remote_hosts[9].mac, self.pg1.local_ip4,
self.pg1._remote_hosts[9].ip4)
#
# Add a hierachy of routes for a host in the sub-net.
# Should still get an ARP resp since the cover is attached
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg1.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1.remote_hosts[10].ip4))
r1 = VppIpRoute(self, self.pg1.remote_hosts[10].ip4, 30, [
VppRoutePath(self.pg1.remote_hosts[10].ip4, self.pg1.sw_if_index)
])
r1.add_vpp_config()
self.pg1.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_resp(rx[0], self.pg1.local_mac, self.pg1.remote_mac,
self.pg1.local_ip4, self.pg1.remote_hosts[10].ip4)
r2 = VppIpRoute(self, self.pg1.remote_hosts[10].ip4, 32, [
VppRoutePath(self.pg1.remote_hosts[10].ip4, self.pg1.sw_if_index)
])
r2.add_vpp_config()
self.pg1.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_resp(rx[0], self.pg1.local_mac, self.pg1.remote_mac,
self.pg1.local_ip4, self.pg1.remote_hosts[10].ip4)
#
# add an ARP entry that's not on the sub-net and so whose
# adj-fib fails the refinement check. then send an ARP request
# from that source
#
a1 = VppNeighbor(self, self.pg0.sw_if_index, self.pg0.remote_mac,
"100.100.100.50")
a1.add_vpp_config()
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc="100.100.100.50",
pdst=self.pg0.remote_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for from failed adj-fib")
#
# ERROR Cases
# 1 - don't respond to ARP request for address not within the
# interface's sub-net
# 1b - nor within the unnumbered subnet
# 1c - nor within the subnet of a different interface
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
pdst="10.10.10.3",
psrc=self.pg0.remote_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local destination")
self.assertFalse(find_nbr(self, self.pg0.sw_if_index, "10.10.10.3"))
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
pdst="10.10.10.3",
psrc=self.pg1.remote_hosts[7].ip4))
self.send_and_assert_no_replies(
self.pg0, p, "ARP req for non-local destination - unnum")
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1.remote_ip4))
self.send_and_assert_no_replies(self.pg0, p, "ARP req diff sub-net")
self.assertFalse(
find_nbr(self, self.pg0.sw_if_index, self.pg1.remote_ip4))
#
# 2 - don't respond to ARP request from an address not within the
# interface's sub-net
# 2b - to a prxied address
# 2c - not within a differents interface's sub-net
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc="10.10.10.3",
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source")
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg2.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg2.remote_mac,
psrc="10.10.10.3",
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(
self.pg0, p, "ARP req for non-local source - unnum")
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc=self.pg1.remote_ip4,
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source 2c")
#
# 3 - don't respond to ARP request from an address that belongs to
# the router
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc=self.pg0.local_ip4,
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source")
#
# 4 - don't respond to ARP requests that has mac source different
# from ARP request HW source
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc="00:00:00:DE:AD:BE",
psrc=self.pg0.remote_ip4,
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source")
#
# 5 - don't respond to ARP requests for address within the
# interface's sub-net but not the interface's address
#
self.pg0.generate_remote_hosts(2)
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc=self.pg0.remote_hosts[0].ip4,
pdst=self.pg0.remote_hosts[1].ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local destination")
#
# cleanup
#
dyn_arp.remove_vpp_config()
static_arp.remove_vpp_config()
self.pg2.unset_unnumbered(self.pg1.sw_if_index)
# need this to flush the adj-fibs
self.pg2.unset_unnumbered(self.pg1.sw_if_index)
self.pg2.admin_down()
self.pg1.admin_down()
def test_arp_duplicates(self):
""" ARP Duplicates"""
#
# Generate some hosts on the LAN
#
self.pg1.generate_remote_hosts(3)
#
# Add host 1 on pg1 and pg2
#
arp_pg1 = VppNeighbor(self, self.pg1.sw_if_index,
self.pg1.remote_hosts[1].mac,
self.pg1.remote_hosts[1].ip4)
arp_pg1.add_vpp_config()
arp_pg2 = VppNeighbor(self, self.pg2.sw_if_index, self.pg2.remote_mac,
self.pg1.remote_hosts[1].ip4)
arp_pg2.add_vpp_config()
#
# IP packet destined for pg1 remote host arrives on pg1 again.
#
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_hosts[1].ip4) /
UDP(sport=1234, dport=1234) / Raw())
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx1 = self.pg1.get_capture(1)
self.verify_ip(rx1[0], self.pg1.local_mac,
self.pg1.remote_hosts[1].mac, self.pg0.remote_ip4,
self.pg1.remote_hosts[1].ip4)
#
# remove the duplicate on pg1
# packet stream shoud generate ARPs out of pg1
#
arp_pg1.remove_vpp_config()
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx1 = self.pg1.get_capture(1)
self.verify_arp_req(rx1[0], self.pg1.local_mac, self.pg1.local_ip4,
self.pg1.remote_hosts[1].ip4)
#
# Add it back
#
arp_pg1.add_vpp_config()
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx1 = self.pg1.get_capture(1)
self.verify_ip(rx1[0], self.pg1.local_mac,
self.pg1.remote_hosts[1].mac, self.pg0.remote_ip4,
self.pg1.remote_hosts[1].ip4)
def test_arp(self):
""" ARP """
#
# Generate some hosts on the LAN
#
self.pg1.generate_remote_hosts(4)
#
# Send IP traffic to one of these unresolved hosts.
# expect the generation of an ARP request
#
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1._remote_hosts[1].ip4) /
UDP(sport=1234, dport=1234) /
Raw())
self.pg0.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_req(rx[0],
self.pg1.local_mac,
self.pg1.local_ip4,
self.pg1._remote_hosts[1].ip4)
#
# And a dynamic ARP entry for host 1
#
dyn_arp = VppNeighbor(self,
self.pg1.sw_if_index,
self.pg1.remote_hosts[1].mac,
self.pg1.remote_hosts[1].ip4)
dyn_arp.add_vpp_config()
#
# now we expect IP traffic forwarded
#
dyn_p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4,
dst=self.pg1._remote_hosts[1].ip4) /
UDP(sport=1234, dport=1234) /
Raw())
self.pg0.add_stream(dyn_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_ip(rx[0],
self.pg1.local_mac,
self.pg1.remote_hosts[1].mac,
self.pg0.remote_ip4,
self.pg1._remote_hosts[1].ip4)
#
# And a Static ARP entry for host 2
#
static_arp = VppNeighbor(self,
self.pg1.sw_if_index,
self.pg1.remote_hosts[2].mac,
self.pg1.remote_hosts[2].ip4,
is_static=1)
static_arp.add_vpp_config()
static_p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4,
dst=self.pg1._remote_hosts[2].ip4) /
UDP(sport=1234, dport=1234) /
Raw())
self.pg0.add_stream(static_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_ip(rx[0],
self.pg1.local_mac,
self.pg1.remote_hosts[2].mac,
self.pg0.remote_ip4,
self.pg1._remote_hosts[2].ip4)
#
# flap the link. dynamic ARPs get flush, statics don't
#
self.pg1.admin_down()
self.pg1.admin_up()
self.pg0.add_stream(static_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_ip(rx[0],
self.pg1.local_mac,
self.pg1.remote_hosts[2].mac,
self.pg0.remote_ip4,
self.pg1._remote_hosts[2].ip4)
self.pg0.add_stream(dyn_p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_req(rx[0],
self.pg1.local_mac,
self.pg1.local_ip4,
self.pg1._remote_hosts[1].ip4)
#
# Send an ARP request from one of the so-far unlearned remote hosts
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff",
src=self.pg1._remote_hosts[3].mac) /
ARP(op="who-has",
hwsrc=self.pg1._remote_hosts[3].mac,
pdst=self.pg1.local_ip4,
psrc=self.pg1._remote_hosts[3].ip4))
self.pg1.add_stream(p)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = self.pg1.get_capture(1)
self.verify_arp_resp(rx[0],
self.pg1.local_mac,
self.pg1._remote_hosts[3].mac,
self.pg1.local_ip4,
self.pg1._remote_hosts[3].ip4)
#
# VPP should have learned the mapping for the remote host
#
self.assertTrue(find_nbr(self,
self.pg1.sw_if_index,
self.pg1._remote_hosts[3].ip4))
#
# ERROR Cases
# 1 - don't respond to ARP request for address not within the
# interface's sub-net
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
pdst="10.10.10.3",
psrc=self.pg0.remote_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local destination")
#
# 2 - don't respond to ARP request from an address not within the
# interface's sub-net
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc="10.10.10.3",
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source")
#
# 3 - don't respond to ARP request from an address that belongs to
# the router
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
psrc=self.pg0.local_ip4,
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source")
#
# 4 - don't respond to ARP requests that has mac source different
# from ARP request HW source
# the router
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc="00:00:00:DE:AD:BE",
psrc=self.pg0.remote_ip4,
pdst=self.pg0.local_ip4))
self.send_and_assert_no_replies(self.pg0, p,
"ARP req for non-local source")
#
# cleanup
#
dyn_arp.remove_vpp_config()
static_arp.remove_vpp_config()