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Connectivity check is checking ipv4 features when injecting ipv6 #35125

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#36513
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Connectivity check is checking ipv4 features when injecting ipv6#35125
Bug
#36513
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tklauser
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area/agentCilium agent related.cilium-cliThis PR contains changes related with cilium-clifeature/ipv6Relates to IPv6 protocol supportkind/bugThis is a bug in the Cilium logic.kind/community-reportThis was reported by a user in the Cilium community, eg via Slack.pinnedThese issues are not marked stale by our issue bot.staleThe stale bot thinks this issue is old. Add "pinned" label to prevent this from becoming stale.
@vincepri

Description

@vincepri
vincepri
opened on Sep 30, 2024

Is there an existing issue for this?

  • I have searched the existing issues

Version

equal or higher than v1.16.0 and lower than v1.17.0

What happened?

cilium/cilium-cli/connectivity/check/deployment.go

Lines 1560 to 1567 in 1a47a11

if ct.Features[features.IPv4].Enabled {
cmd := []string{"/bin/sh", "-c", fmt.Sprintf("ip -family inet6 -oneline address show dev %s scope global | awk '{print $4}' | cut -d/ -f1", iface)}
addr, err := client.ExecInPod(ctx, pod.Namespace, pod.Name, "", cmd)
if err != nil {
return fmt.Errorf("failed to fetch secondary network ip addr: %w", err)
}
ct.secondaryNetworkNodeIPv6[pod.Spec.NodeName] = strings.TrimSuffix(addr.String(), "\n")
}

How can we reproduce the issue?

The check for pod ipv6 is checking for ipv4 features

Cilium Version

N/A

Kernel Version

N/A

Kubernetes Version

N/A

Regression

No response

Sysdump

No response

Relevant log output

No response

Anything else?

No response

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area/agentCilium agent related.cilium-cliThis PR contains changes related with cilium-clifeature/ipv6Relates to IPv6 protocol supportkind/bugThis is a bug in the Cilium logic.kind/community-reportThis was reported by a user in the Cilium community, eg via Slack.pinnedThese issues are not marked stale by our issue bot.staleThe stale bot thinks this issue is old. Add "pinned" label to prevent this from becoming stale.

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