Bug 2103178
Summary: | disabling ipv6 router advertisements using "all" does not disable it on secondary interfaces | ||
---|---|---|---|
Product: | OpenShift Container Platform | Reporter: | Douglas Smith <dosmith> |
Component: | Networking | Assignee: | Douglas Smith <dosmith> |
Networking sub component: | multus | QA Contact: | Weibin Liang <weliang> |
Status: | CLOSED ERRATA | Docs Contact: | |
Severity: | high | ||
Priority: | high | CC: | dornelas, dosmith, nagrawal, ncocker, tsweeney, weliang |
Version: | 4.7 | ||
Target Milestone: | --- | ||
Target Release: | 4.12.0 | ||
Hardware: | x86_64 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | If docs needed, set a value | |
Doc Text: | Story Points: | --- | |
Clone Of: | 2103177 | Environment: | |
Last Closed: | 2023-01-17 19:51:19 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 2103177 |
Description
Douglas Smith
2022-07-01 15:36:40 UTC
For verification, use this YAML: ``` --- apiVersion: "k8s.cni.cncf.io/v1" kind: NetworkAttachmentDefinition metadata: name: example-tuning-conf spec: config: > { "cniVersion": "0.4.0", "name": "example-tuning-conf", "plugins": [{ "type": "bridge", "bridge": "test1234", "ipam": { "type": "host-local", "subnet": "192.168.1.0/24", "rangeStart": "192.168.1.200", "rangeEnd": "192.168.1.216", "routes": [ { "dst": "0.0.0.0/0" } ], "gateway": "192.168.1.1" } }, { "type": "tuning", "sysctl": { "net.ipv6.conf.IFNAME.accept_ra": "0" } } ] } --- apiVersion: v1 kind: Pod metadata: name: samplepod annotations: k8s.v1.cni.cncf.io/networks: example-tuning-conf spec: containers: - name: samplepod command: ["/bin/ash", "-c", "trap : TERM INT; sleep infinity & wait"] image: alpine ``` The resulting pod should have accept_ra set to zero, such as: ``` $ oc exec -it samplepod -- cat /proc/sys/net/ipv6/conf/net1/accept_ra 0 ``` Tested and verified in 4.12.0-0.nightly-2022-07-14-072429 [weliang@weliang Test]$ oc exec -it samplepod -- cat /proc/sys/net/ipv6/conf/net1/accept_ra 0 [weliang@weliang Test]$ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.12.0-0.nightly-2022-07-14-072429 True False 7m35s Cluster version is 4.12.0-0.nightly-2022-07-14-072429 [weliang@weliang Test]$ Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.12.0 bug fix and security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2022:7399 |