1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
|
# Copyright (c) 2016 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
*** Settings ***
| Resource | resources/libraries/robot/default.robot
| Resource | resources/libraries/robot/testing_path.robot
| Resource | resources/libraries/robot/ipv4.robot
| Resource | resources/libraries/robot/gre.robot
| Resource | resources/libraries/robot/traffic.robot
| Library | resources.libraries.python.IPUtil
| Library | resources.libraries.python.Trace
| Force Tags | VM_ENV | HW_ENV | 3_NODE_DOUBLE_LINK_TOPO | SKIP_VPP_PATCH
| Test Setup | Set up functional test
| Test Teardown | Tear down functional test
| Documentation | *GREoIPv4 test cases*
| ...
| ... | *[Top] Network Topologies:* TG=DUT1 2-node topology with two links
| ... | between nodes; TG-DUT1-DUT2-TG 3-node circular topology with single
| ... | links between nodes.
| ... | *[Enc] Packet Encapsulations:* Eth-IPv4-GRE-IPv4-ICMPv4 on DUT1-DUT2,
| ... | Eth-IPv4-ICMPv4 on TG-DUTn for routing over GRE tunnel; Eth-IPv4-ICMPv4
| ... | on TG_if1-DUT, Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT for GREoIPv4
| ... | encapsulation and decapsulation verification.
| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with IPv4 routing
| ... | and static routes. GREoIPv4 tunnel is configured between DUT1 and DUT2.
| ... | *[Ver] TG verification:* Test ICMPv4 (or ICMPv6) Echo Request packets are
| ... | sent in both directions by TG on links to DUT1 and DUT2; GREoIPv4
| ... | encapsulation and decapsulation are verified separately by TG; on
| ... | receive TG verifies packets for correctness and their IPv4 (IPv6)
| ... | src-addr, dst-addr and MAC addresses.
| ... | *[Ref] Applicable standard specifications:* RFC2784.
*** Variables ***
| ${net1_address}= | 192.168.0.0
| ${net1_host_address}= | 192.168.0.100
| ${net1_gw_address}= | 192.168.0.1
| ${net2_address}= | 192.168.2.0
| ${net2_host_address}= | 192.168.2.100
| ${net3_address}= | 192.168.3.0
| ${net3_host_address}= | 192.168.3.100
| ${net2_gw_address}= | 192.168.2.1
| ${dut1_ip_address}= | 192.168.1.1
| ${dut2_ip_address}= | 192.168.1.2
| ${dut1_gre_ip}= | 172.16.0.1
| ${dut2_gre_ip}= | 172.16.0.2
| ${dut_tun0_ip1}= | 172.16.0.1
| ${dut_tun0_ip2}= | 172.16.0.2
| ${dut_tun1_ip1}= | 172.16.1.1
| ${dut_tun1_ip2}= | 172.16.1.2
| ${dut1_lo_address}= | 10.0.0.1
| ${tun0_dst}= | 10.0.0.2
| ${tun1_dst}= | 10.0.0.3
| ${prefix}= | 24
*** Test Cases ***
| TC01: DUT1 and DUT2 route over GREoIPv4 tunnel between two TG links
| | [Documentation]
| | ... | [Top] TG-DUT1-DUT2-TG. [Enc] Eth-IPv4-GRE-IPv4-ICMPv4 on \
| | ... | DUT1-DUT2, Eth-IPv4-ICMPv4 on TG-DUTn. [Cfg] On DUT1 and DUT2
| | ... | configure GREoIPv4 tunnel with IPv4 routes towards each other.
| | ... | [Ver] Make TG send ICMPv4 Echo Req between its interfaces across
| | ... | both DUTs and GRE tunnel between them; verify IPv4 headers on
| | ... | received packets are correct. [Ref] RFC2784.
| | [Tags] | 3_NODE_SINGLE_LINK_TOPO | 3_NODE_DOUBLE_LINK_TOPO
| | Given Configure path in 3-node circular topology | ${nodes['TG']} | ${nodes['DUT1']}
| | ... | ${nodes['DUT2']} | ${nodes['TG']}
| | And Set interfaces in 3-node circular topology up
| | And Configure IP addresses on interfaces
| | ... | ${dut1_node} | ${dut1_to_dut2} | ${dut1_ip_address} | ${prefix}
| | ... | ${dut1_node} | ${dut1_to_tg} | ${net1_gw_address} | ${prefix}
| | ... | ${dut2_node} | ${dut2_to_dut1} | ${dut2_ip_address} | ${prefix}
| | ... | ${dut2_node} | ${dut2_to_tg} | ${net2_gw_address} | ${prefix}
| | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${dut2_ip_address}
| | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${dut1_ip_address}
| | And Add Arp On Dut | ${dut2_node} | ${dut2_to_tg} | ${net2_host_address}
| | ... | ${tg_to_dut2_mac}
| | ${dut1_gre_interface} | ${dut1_gre_index}=
| | ... | When Create GRE tunnel interface and set it up
| | ... | ${dut1_node} | ${dut1_ip_address} | ${dut2_ip_address}
| | ${dut2_gre_interface} | ${dut2_gre_index}=
| | ... | And Create GRE tunnel interface and set it up
| | ... | ${dut2_node} | ${dut2_ip_address} | ${dut1_ip_address}
| | And Configure IP addresses on interfaces
| | ... | ${dut1_node} | ${dut1_gre_index} | ${dut1_gre_ip} | ${prefix}
| | ... | ${dut2_node} | ${dut2_gre_index} | ${dut2_gre_ip} | ${prefix}
| | And Vpp Route Add | ${dut1_node} | ${net2_address} | ${prefix}
| | ... | ${dut2_gre_ip} | ${dut1_gre_index}
| | Then Send packet and verify headers | ${tg_node}
| | ... | ${net1_host_address} | ${net2_host_address}
| | ... | ${tg_to_dut1} | ${tg_to_dut1_mac} | ${dut1_to_tg_mac}
| | ... | ${tg_to_dut2} | ${dut2_to_tg_mac} | ${tg_to_dut2_mac}
| TC02: DUT encapsulates IPv4 into GREoIPv4 tunnel - GRE header verification
| | [Documentation]
| | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \
| | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure
| | ... | GREoIPv4 tunnel with IPv4 route towards TG. [Ver] Make TG send
| | ... | non-encapsulated ICMPv4 Echo Req to DUT; verify TG received
| | ... | GREoIPv4 encapsulated packet is correct. [Ref] RFC2784.
| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
| | Given Configure path in 2-node circular topology
| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
| | And Set interfaces in 2-node circular topology up
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix}
| | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix}
| | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if2} | ${dut2_ip_address}
| | ... | ${tg_to_dut_if2_mac}
| | ${dut1_gre_interface} | ${dut1_gre_index}=
| | ... | When Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_ip_address} | ${dut2_ip_address}
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut1_gre_index} | ${dut1_gre_ip} | ${prefix}
| | And Vpp Route Add | ${dut_node} | ${net2_address} | ${prefix}
| | ... | ${dut2_gre_ip} | ${dut1_gre_index}
| | Then Send ICMPv4 and check received GRE header
| | ... | ${tg_node} | ${tg_to_dut_if1} | ${tg_to_dut_if2}
| | ... | ${dut_to_tg_if1_mac} | ${tg_to_dut_if2_mac}
| | ... | ${net1_host_address} | ${net2_host_address}
| | ... | ${dut1_ip_address} | ${dut2_ip_address}
| TC03: DUT decapsulates IPv4 from GREoIPv4 tunnel - IPv4 header verification
| | [Documentation]
| | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \
| | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure
| | ... | GREoIPv4 tunnel towards TG. [Ver] Make TG send ICMPv4 Echo Req
| | ... | encapsulated into GREoIPv4 towards VPP; verify TG received IPv4
| | ... | de-encapsulated packet is correct. [Ref] RFC2784.
| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
| | Given Configure path in 2-node circular topology
| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
| | And Set interfaces in 2-node circular topology up
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix}
| | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix}
| | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if1} | ${net1_host_address}
| | ... | ${tg_to_dut_if1_mac}
| | ${dut1_gre_interface} | ${dut1_gre_index}=
| | ... | When Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_ip_address} | ${dut2_ip_address}
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut1_gre_index} | ${dut1_gre_ip} | ${prefix}
| | Then Send GRE and check received ICMPv4 header
| | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1}
| | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if1_mac}
| | ... | ${net2_host_address} | ${net1_host_address}
| | ... | ${dut2_ip_address} | ${dut1_ip_address}
| TC04: DUT encapsulates IPv4 into GREoIPv4 different tunnels - GRE header verification
| | [Documentation]
| | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \
| | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure two
| | ... | GRE tunnels with loopback's source address. Destination address of
| | ... | tunnels are routed via next hop address of DUT's to TG if2, where
| | ... | should be only GRE encapsulated packets. Each tunnel has IPv4 address
| | ... | and configured prefix routed through the tunnel. [Ver] Make TG send
| | ... | non-encapsulated ICMPv4 Echo Req to DUT; verify TG received GREoIPv4
| | ... | encapsulated packet is correct for each tunnel. [Ref] RFC2784.
| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
| | Given Configure path in 2-node circular topology
| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
| | And Set interfaces in 2-node circular topology up
| | ${dut1_lo_index}= | And VPP Create loopback | ${dut_node}
| | And Set Interface State | ${dut_node} | ${dut1_lo_index} | up
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix}
| | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix}
| | ... | ${dut_node} | ${dut1_lo_index} | ${dut1_lo_address} | ${32}
| | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if2} | ${dut2_ip_address}
| | ... | ${tg_to_dut_if2_mac}
| | And Vpp Route Add | ${dut_node} | ${tun0_dst} | ${32}
| | ... | ${dut2_ip_address} | ${dut_to_tg_if2}
| | And Vpp Route Add | ${dut_node} | ${tun1_dst} | ${32}
| | ... | ${dut2_ip_address} | ${dut_to_tg_if2}
| | ${dut1_gre0_interface} | ${dut1_gre0_index}=
| | ... | When Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_lo_address} | ${tun0_dst}
| | ${dut1_gre1_interface} | ${dut1_gre1_index}=
| | ... | And Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_lo_address} | ${tun1_dst}
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut1_gre0_index} | ${dut_tun0_ip1} | ${prefix}
| | ... | ${dut_node} | ${dut1_gre1_index} | ${dut_tun1_ip1} | ${prefix}
| | And Vpp Route Add | ${dut_node} | ${net2_address} | ${prefix}
| | ... | ${dut_tun0_ip2} | ${dut1_gre0_index}
| | And Vpp Route Add | ${dut_node} | ${net3_address} | ${prefix}
| | ... | ${dut_tun1_ip2} | ${dut1_gre1_index}
| | Then Send ICMPv4 and check received GRE header
| | ... | ${tg_node} | ${tg_to_dut_if1} | ${tg_to_dut_if2}
| | ... | ${dut_to_tg_if1_mac} | ${tg_to_dut_if2_mac}
| | ... | ${net1_host_address} | ${net2_host_address}
| | ... | ${dut1_lo_address} | ${tun0_dst}
| | And Send ICMPv4 and check received GRE header
| | ... | ${tg_node} | ${tg_to_dut_if1} | ${tg_to_dut_if2}
| | ... | ${dut_to_tg_if1_mac} | ${tg_to_dut_if2_mac}
| | ... | ${net1_host_address} | ${net3_host_address}
| | ... | ${dut1_lo_address} | ${tun1_dst}
| TC05: DUT re-encapsulates IPv4 GRE into other GRE tunnel - GRE header verification
| | [Documentation]
| | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \
| | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure two
| | ... | GRE tunnels with loopback's source address. Destination address of
| | ... | tunnels are routed via next hop address of DUT's to TG if2, where
| | ... | should be only GRE encapsulated packets. Each tunnel has IPv4 address
| | ... | and configured prefix routed through the tunnel. [Ver] Make TG send
| | ... | encapsulated IPv4 UDP to DUT; Encapsulated IP source is behind
| | ... | configured tunnel same as destination; verify TG received GREoIPv4
| | ... | encapsulated packet is correct. [Ref] RFC2784.
| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
| | Given Configure path in 2-node circular topology
| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
| | And Set interfaces in 2-node circular topology up
| | ${dut1_lo_index}= | And VPP Create loopback | ${dut_node}
| | And Set Interface State | ${dut_node} | ${dut1_lo_index} | up
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix}
| | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix}
| | ... | ${dut_node} | ${dut1_lo_index} | ${dut1_lo_address} | ${32}
| | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if2} | ${dut2_ip_address}
| | ... | ${tg_to_dut_if2_mac}
| | And Vpp Route Add | ${dut_node} | ${tun0_dst} | ${32}
| | ... | ${dut2_ip_address} | ${dut_to_tg_if2}
| | And Vpp Route Add | ${dut_node} | ${tun1_dst} | ${32}
| | ... | ${dut2_ip_address} | ${dut_to_tg_if2}
| | ${dut1_gre0_interface} | ${dut1_gre0_index}=
| | ... | When Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_lo_address} | ${tun0_dst}
| | ${dut1_gre1_interface} | ${dut1_gre1_index}=
| | ... | And Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_lo_address} | ${tun1_dst}
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut1_gre0_index} | ${dut_tun0_ip1} | ${prefix}
| | ... | ${dut_node} | ${dut1_gre1_index} | ${dut_tun1_ip1} | ${prefix}
| | And Vpp Route Add | ${dut_node} | ${net2_address} | ${prefix}
| | ... | ${dut_tun0_ip2} | ${dut1_gre0_index}
| | And Vpp Route Add | ${dut_node} | ${net3_address} | ${prefix}
| | ... | ${dut_tun1_ip2} | ${dut1_gre1_index}
| | Then Send GRE and check received GRE header
| | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if2}
| | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if2_mac}
| | ... | ${dut1_lo_address} | ${tun0_dst}
| | ... | ${net3_host_address} | ${net2_host_address}
| | ... | ${tg_to_dut_if2_mac} | ${dut_to_tg_if2_mac}
| | ... | ${tun1_dst} | ${dut1_lo_address}
| TC06: DUT do not process GRE with wrong tunnel destination IP
| | [Documentation]
| | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4 on TG_if1-DUT, \
| | ... | Eth-IPv4-GRE-IPv4-ICMPv4 on TG_if2_DUT. [Cfg] On DUT1 configure two
| | ... | GRE tunnels with loopback's source address. Destination address of
| | ... | tunnels are routed via next hop address of DUT's to TG if2, where
| | ... | should be only GRE encapsulated packets. On DUT's to TG if1 interface
| | ... | is configured test destination host MAC address. [Ver] Make TG send
| | ... | GRE encapsulated ICMPv4 Echo Req to DUT; verify TG received
| | ... | de-capsulated packet is correct, then send packet with wrong tunnel
| | ... | destination address. [Ref] RFC2784.
| | ... |
| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
| | Given Configure path in 2-node circular topology
| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
| | And Set interfaces in 2-node circular topology up
| | ${dut1_lo_index}= | And VPP Create loopback | ${dut_node}
| | And Set Interface State | ${dut_node} | ${dut1_lo_index} | up
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut_to_tg_if2} | ${dut1_ip_address} | ${prefix}
| | ... | ${dut_node} | ${dut_to_tg_if1} | ${net1_gw_address} | ${prefix}
| | ... | ${dut_node} | ${dut1_lo_index} | ${dut1_lo_address} | ${32}
| | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if1} | ${net1_host_address}
| | ... | ${tg_to_dut_if1_mac}
| | And Add Arp On Dut | ${dut_node} | ${dut_to_tg_if2} | ${dut2_ip_address}
| | ... | ${tg_to_dut_if2_mac}
| | And Vpp Route Add | ${dut_node} | ${tun0_dst} | ${32}
| | ... | ${dut2_ip_address} | ${dut_to_tg_if2}
| | And Vpp Route Add | ${dut_node} | ${tun1_dst} | ${32}
| | ... | ${dut2_ip_address} | ${dut_to_tg_if2}
| | ${dut1_gre0_interface} | ${dut1_gre0_index}=
| | ... | When Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_lo_address} | ${tun0_dst}
| | ${dut1_gre1_interface} | ${dut1_gre1_index}=
| | ... | And Create GRE tunnel interface and set it up
| | ... | ${dut_node} | ${dut1_lo_address} | ${tun1_dst}
| | And Configure IP addresses on interfaces
| | ... | ${dut_node} | ${dut1_gre0_index} | ${dut_tun0_ip1} | ${prefix}
| | ... | ${dut_node} | ${dut1_gre1_index} | ${dut_tun1_ip1} | ${prefix}
| | Then Send GRE and check received ICMPv4 header
| | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1}
| | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if1_mac}
| | ... | ${net2_host_address} | ${net1_host_address}
| | ... | ${tun0_dst} | ${dut1_lo_address}
| | And Run Keyword And Expect Error | ICMP echo Rx timeout
| | ... | Send GRE and check received ICMPv4 header |
| | ... | ${tg_node} | ${tg_to_dut_if2} | ${tg_to_dut_if1}
| | ... | ${dut_to_tg_if2_mac} | ${tg_to_dut_if1_mac}
| | ... | ${net2_host_address} | ${net1_host_address}
| | ... | ${tun0_dst} | ${dut1_ip_address}
|
