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Support proxy ARP on mirrored TAP interfaces

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When VPP has an interface whose address is also applied to a TAP
interface on the host, then VPP's TAP interface will be unnumbered
to the 'real' interface and do proxy ARP from the host.
the curious aspect of this setup is that ARP requests from the host
will come from the VPP's own address.

Change-Id: Ia238790e1034ba3cd3facdab29387b65a31525f2
Signed-off-by: Neale Ranns <nranns@cisco.com>
This commit is contained in:
Neale Ranns
2017-08-15 05:33:11 -07:00
committed by Florin Coras
parent e9ab1c0b4a
commit 24b170aac5
3 changed files with 86 additions and 4 deletions
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6
test/vpp_interface.py
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@ -163,6 +163,12 @@ class VppInterface(object):
self._local_ip4 = "172.16.%u.1" % self.sw_if_index
self._local_ip4n = socket.inet_pton(socket.AF_INET, self.local_ip4)
self._local_ip4_subnet = "172.16.%u.0" % self.sw_if_index
self._local_ip4n_subnet = socket.inet_pton(socket.AF_INET,
self._local_ip4_subnet)
self._local_ip4_bcast = "172.16.%u.255" % self.sw_if_index
self._local_ip4n_bcast = socket.inet_pton(socket.AF_INET,
self._local_ip4_bcast)
self.local_ip4_prefix_len = 24
self.has_ip4_config = False
self.ip4_table_id = 0