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test: add IPv6 forwarding verification to routing-basic

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg
2026-01-30 13:09:14 +01:00
parent 129f92afdd
commit db0c6417b2
5 changed files with 101 additions and 99 deletions
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test/case/interfaces/Readme.adoc
+1 -1
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@@ -7,7 +7,7 @@ Tests verifying interface configuration and management:
- IPv4 and IPv6 address assignment and management
- IPv4 address auto-configuration mechanisms
- Interface aliases and physical address configuration
- Basic routing table configuration and operation
- IPv4 and IPv6 forwarding between interfaces
- Linux bridge creation, STP, and VLAN handling
- Link aggregation (LAG) setup and failover behavior
- IGMP multicast group management and forwarding
test/case/interfaces/routing_basic/test.adoc
+9 -6
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@@ -4,8 +4,11 @@ ifdef::topdoc[:imagesdir: {topdoc}../../test/case/interfaces/routing_basic]
==== Description
Verify routing between interfaces is possible. That enable/disable routing
in configuration has the expected result.
Verify that the ietf-ip forwarding setting controls whether IPv4
and IPv6 traffic is routed between interfaces. When forwarding is
enabled, hosts on separate subnets can reach each other through
the device. When forwarding is disabled, that connectivity is
expected to be lost.
==== Topology
@@ -14,11 +17,11 @@ image::topology.svg[Routing basic topology, align=center, scaledwidth=75%]
==== Sequence
. Set up topology and attach to target DUTs
. Setup host
. Set up host addresses and default routes
. Enable forwarding on target:data1 and target:data2
. Verify ping from host:data1 to 10.0.0.10
. Verify ping from host:data2 to 192.168.0.10
. Verify cross-subnet IPv4 connectivity
. Verify cross-subnet IPv6 connectivity
. Disable forwarding on target:data1 and target:data2
. Verify ping does not work host:data1 to 10.0.0.10 and host:data2 to 192.168.0.10
. Verify cross-subnet connectivity is lost
test/case/interfaces/routing_basic/test.py
+57 -60
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@@ -1,58 +1,53 @@
#!/usr/bin/env python3
# ,------------------------------------------------,
# | [TARGET] |
# | |
# | |
# | target:mgmt target:data0 targetgt:data1 |
# | [192.168.0.1] [10.0.0.1] |
# '------------------------------------------------'
# | | |
# | | |
# ,----------------------------------------------,
# | host:mgmt host:data0 host:data1 |
# | [192.168.0.10] [10.0.0.10] |
# | (ns0) (ns1) |
# | |
# | [ HOST ] |
# '----------------------------------------------'
"""
Routing basic
Verify routing between interfaces is possible. That enable/disable routing
in configuration has the expected result.
Verify that the ietf-ip forwarding setting controls whether IPv4
and IPv6 traffic is routed between interfaces. When forwarding is
enabled, hosts on separate subnets can reach each other through
the device. When forwarding is disabled, that connectivity is
expected to be lost.
"""
import infamy
SUBNETS = [
{"ipv4": {"gw": "192.168.0.1", "host": "192.168.0.10", "prefix": 24},
"ipv6": {"gw": "2001:db8:0::1", "host": "2001:db8:0::10", "prefix": 64}},
{"ipv4": {"gw": "10.0.0.1", "host": "10.0.0.10", "prefix": 24},
"ipv6": {"gw": "2001:db8:1::1", "host": "2001:db8:1::10", "prefix": 64}},
]
def iface_cfg(port, subnet, enable_fwd):
"""Build interface config with both IPv4 and IPv6."""
cfg = {"name": port, "enabled": True}
for family in ("ipv4", "ipv6"):
af = subnet[family]
cfg[family] = {
"forwarding": enable_fwd,
"address": [{"ip": af["gw"], "prefix-length": af["prefix"]}],
}
return cfg
def config_target(target, tport0, tport1, enable_fwd):
"""Configure forwarding and addresses for both address families."""
target.put_config_dict("ietf-interfaces", {
"interfaces": {
"interface": [
{
"name": tport0,
"enabled": True,
"ipv4": {
"forwarding": enable_fwd,
"address": [{
"ip": "192.168.0.1",
"prefix-length": 24
}]
}
},
{
"name": tport1,
"enabled": True,
"ipv4": {
"forwarding": enable_fwd,
"address": [{
"ip": "10.0.0.1",
"prefix-length": 24
}]
}
}
]
}
})
"interfaces": {
"interface": [
iface_cfg(tport0, SUBNETS[0], enable_fwd),
iface_cfg(tport1, SUBNETS[1], enable_fwd),
]
}
})
def setup_host(ns, subnet):
"""Add IPv4 and IPv6 addresses and default routes."""
v4 = subnet["ipv4"]
ns.addip(v4["host"])
ns.addroute("default", v4["gw"])
v6 = subnet["ipv6"]
ns.addip(v6["host"], prefix_length=v6["prefix"], proto="ipv6")
ns.addroute("default", v6["gw"], proto="ipv6")
with infamy.Test() as test:
with test.step("Set up topology and attach to target DUTs"):
@@ -65,29 +60,31 @@ with infamy.Test() as test:
_, hport1 = env.ltop.xlate("host", "data2")
with infamy.IsolatedMacVlan(hport0) as ns0, \
infamy.IsolatedMacVlan(hport1) as ns1 :
infamy.IsolatedMacVlan(hport1) as ns1:
with test.step("Setup host"):
ns0.addip("192.168.0.10")
ns0.addroute("default", "192.168.0.1")
ns1.addip("10.0.0.10")
ns1.addroute("default", "10.0.0.1")
with test.step("Set up host addresses and default routes"):
setup_host(ns0, SUBNETS[0])
setup_host(ns1, SUBNETS[1])
with test.step("Enable forwarding on target:data1 and target:data2"):
config_target(target, tport0, tport1, True)
with test.step("Verify ping from host:data1 to 10.0.0.10"):
ns0.must_reach("10.0.0.10")
with test.step("Verify cross-subnet IPv4 connectivity"):
ns0.must_reach(SUBNETS[1]["ipv4"]["host"])
ns1.must_reach(SUBNETS[0]["ipv4"]["host"])
with test.step("Verify ping from host:data2 to 192.168.0.10"):
ns1.must_reach("192.168.0.10")
with test.step("Verify cross-subnet IPv6 connectivity"):
ns0.must_reach(SUBNETS[1]["ipv6"]["host"])
ns1.must_reach(SUBNETS[0]["ipv6"]["host"])
with test.step("Disable forwarding on target:data1 and target:data2"):
config_target(target, tport0, tport1, False)
with test.step("Verify ping does not work host:data1 to 10.0.0.10 and host:data2 to 192.168.0.10"):
infamy.parallel(lambda: ns0.must_not_reach("10.0.0.10"),
lambda: ns1.must_not_reach("192.168.0.10"))
with test.step("Verify cross-subnet connectivity is lost"):
infamy.parallel(
lambda: ns0.must_not_reach(SUBNETS[1]["ipv4"]["host"]),
lambda: ns1.must_not_reach(SUBNETS[0]["ipv4"]["host"]),
lambda: ns0.must_not_reach(SUBNETS[1]["ipv6"]["host"]),
lambda: ns1.must_not_reach(SUBNETS[0]["ipv6"]["host"]))
test.succeed()
test/case/interfaces/routing_basic/topology.dot
+3 -3
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@@ -19,6 +19,6 @@ graph "routing_basic" {
];
host:mgmt -- target:mgmt [requires="mgmt", color="lightgray"]
host:data1 -- target:data1 [color=black, fontcolor=black, fontsize=12, taillabel=".10", label="192.168.0.0/24", headlabel=".1"]
host:data2 -- target:data2 [color=black, fontcolor=black, fontsize=12, taillabel=".10", label="10.0.0.0/24", headlabel=".1"]
}
host:data1 -- target:data1 [color=black, fontcolor=black, fontsize=12, taillabel=".10", label="192.168.0.0/24\n2001:db8:0::/64", headlabel=".1"]
host:data2 -- target:data2 [color=black, fontcolor=black, fontsize=12, taillabel=".10", label="10.0.0.0/24\n2001:db8:1::/64", headlabel=".1"]
}
test/case/interfaces/routing_basic/topology.svg
+31 -29
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@@ -3,55 +3,57 @@
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<!-- Title: routing_basic Pages: 1 -->
<svg width="440pt" height="79pt"
viewBox="0.00 0.00 440.03 79.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 75)">
<svg width="440pt" height="92pt"
viewBox="0.00 0.00 440.03 92.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 88)">
<title>routing_basic</title>
<polygon fill="white" stroke="transparent" points="-4,4 -4,-75 436.03,-75 436.03,4 -4,4"/>
<polygon fill="white" stroke="transparent" points="-4,4 -4,-88 436.03,-88 436.03,4 -4,4"/>
<!-- host -->
<g id="node1" class="node">
<title>host</title>
<polygon fill="none" stroke="black" points="0,-1.5 0,-70.5 108,-70.5 108,-1.5 0,-1.5"/>
<text text-anchor="middle" x="25" y="-32.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">host</text>
<polyline fill="none" stroke="black" points="50,-1.5 50,-70.5 "/>
<text text-anchor="middle" x="79" y="-55.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">mgmt</text>
<polyline fill="none" stroke="black" points="50,-47.5 108,-47.5 "/>
<text text-anchor="middle" x="79" y="-32.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data1</text>
<polyline fill="none" stroke="black" points="50,-24.5 108,-24.5 "/>
<text text-anchor="middle" x="79" y="-9.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data2</text>
<polygon fill="none" stroke="black" points="0,-14.5 0,-83.5 108,-83.5 108,-14.5 0,-14.5"/>
<text text-anchor="middle" x="25" y="-45.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">host</text>
<polyline fill="none" stroke="black" points="50,-14.5 50,-83.5 "/>
<text text-anchor="middle" x="79" y="-68.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">mgmt</text>
<polyline fill="none" stroke="black" points="50,-60.5 108,-60.5 "/>
<text text-anchor="middle" x="79" y="-45.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data1</text>
<polyline fill="none" stroke="black" points="50,-37.5 108,-37.5 "/>
<text text-anchor="middle" x="79" y="-22.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data2</text>
</g>
<!-- target -->
<g id="node2" class="node">
<title>target</title>
<polygon fill="none" stroke="black" points="308.03,-1.5 308.03,-70.5 432.03,-70.5 432.03,-1.5 308.03,-1.5"/>
<text text-anchor="middle" x="337.03" y="-55.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">mgmt</text>
<polyline fill="none" stroke="black" points="308.03,-47.5 366.03,-47.5 "/>
<text text-anchor="middle" x="337.03" y="-32.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data1</text>
<polyline fill="none" stroke="black" points="308.03,-24.5 366.03,-24.5 "/>
<text text-anchor="middle" x="337.03" y="-9.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data2</text>
<polyline fill="none" stroke="black" points="366.03,-1.5 366.03,-70.5 "/>
<text text-anchor="middle" x="399.03" y="-32.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">target</text>
<polygon fill="none" stroke="black" points="308.03,-14.5 308.03,-83.5 432.03,-83.5 432.03,-14.5 308.03,-14.5"/>
<text text-anchor="middle" x="337.03" y="-68.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">mgmt</text>
<polyline fill="none" stroke="black" points="308.03,-60.5 366.03,-60.5 "/>
<text text-anchor="middle" x="337.03" y="-45.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data1</text>
<polyline fill="none" stroke="black" points="308.03,-37.5 366.03,-37.5 "/>
<text text-anchor="middle" x="337.03" y="-22.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">data2</text>
<polyline fill="none" stroke="black" points="366.03,-14.5 366.03,-83.5 "/>
<text text-anchor="middle" x="399.03" y="-45.3" font-family="DejaVu Sans Mono, Book" font-size="14.00">target</text>
</g>
<!-- host&#45;&#45;target -->
<g id="edge1" class="edge">
<title>host:mgmt&#45;&#45;target:mgmt</title>
<path fill="none" stroke="lightgray" stroke-width="2" d="M108,-59C108,-59 308.03,-59 308.03,-59"/>
<path fill="none" stroke="lightgray" stroke-width="2" d="M108,-72C108,-72 308.03,-72 308.03,-72"/>
</g>
<!-- host&#45;&#45;target -->
<g id="edge2" class="edge">
<title>host:data1&#45;&#45;target:data1</title>
<path fill="none" stroke="black" stroke-width="2" d="M108,-36C108,-36 308.03,-36 308.03,-36"/>
<text text-anchor="middle" x="162.52" y="-39.4" font-family="DejaVu Serif, Book" font-size="12.00">192.168.0.0/24</text>
<text text-anchor="middle" x="302.03" y="-39.4" font-family="DejaVu Serif, Book" font-size="12.00">.1</text>
<text text-anchor="middle" x="117.5" y="-26.4" font-family="DejaVu Serif, Book" font-size="12.00">.10</text>
<path fill="none" stroke="black" stroke-width="2" d="M108,-49C108,-49 308.03,-49 308.03,-49"/>
<text text-anchor="middle" x="161.02" y="-65.4" font-family="DejaVu Serif, Book" font-size="12.00">192.168.0.0/24</text>
<text text-anchor="middle" x="161.02" y="-52.4" font-family="DejaVu Serif, Book" font-size="12.00">2001:db8:0::/64</text>
<text text-anchor="middle" x="302.03" y="-52.4" font-family="DejaVu Serif, Book" font-size="12.00">.1</text>
<text text-anchor="middle" x="117.5" y="-39.4" font-family="DejaVu Serif, Book" font-size="12.00">.10</text>
</g>
<!-- host&#45;&#45;target -->
<g id="edge3" class="edge">
<title>host:data2&#45;&#45;target:data2</title>
<path fill="none" stroke="black" stroke-width="2" d="M108,-13C108,-13 308.03,-13 308.03,-13"/>
<text text-anchor="middle" x="174.02" y="-16.4" font-family="DejaVu Serif, Book" font-size="12.00">10.0.0.0/24</text>
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<text text-anchor="middle" x="161.02" y="-16.4" font-family="DejaVu Serif, Book" font-size="12.00">10.0.0.0/24</text>
<text text-anchor="middle" x="161.02" y="-3.4" font-family="DejaVu Serif, Book" font-size="12.00">2001:db8:1::/64</text>
<text text-anchor="middle" x="302.03" y="-29.4" font-family="DejaVu Serif, Book" font-size="12.00">.1</text>
<text text-anchor="middle" x="117.5" y="-29.4" font-family="DejaVu Serif, Book" font-size="12.00">.10</text>
</g>
</g>
</svg>
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