Bug 1723628
| Summary: | ipv6 is enabled automatically if added br0 with ipv6 disabled | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Jianlin Shi <jishi> |
| Component: | nmstate | Assignee: | Edward Haas <edwardh> |
| Status: | CLOSED ERRATA | QA Contact: | Mingyu Shi <mshi> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 8.1 | CC: | edwardh, network-qe, rkhan, till |
| Target Milestone: | rc | ||
| Target Release: | 8.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | nmstate-0.0.8-1.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-04-28 16:00:05 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This should have been resolved in 0.0.8. Could you please re-check? Please note that the existing solution comes with a limitation: it is not persisted over node boot. The limitation is resolved in NM 1.19+ and adjusting nmstate is worked on upstream: https://github.com/nmstate/nmstate/pull/447 We plan to target the 2nd part to RHEL 8.1.1. If you will like to keep track of this, I suggest a separate BZ is opened. Re-checked OK, on:
[root@kvm-08-guest13 ~]0# rpm -q nmstate
nmstate-0.0.8-15.el8.noarch
[root@kvm-08-guest13 ~]0# uname -a
Linux kvm-08-guest13.hv2.lab.eng.bos.redhat.com 4.18.0-144.el8.x86_64 #1 SMP Thu Sep 12 14:30:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
[root@kvm-08-guest13 ~]0# cat br6.yaml
interfaces:
- name: veth0_c
type: ethernet
state: up
ipv4:
enabled: false
ipv6:
enabled: false
mtu: 1500
- name: veth0_s
type: ethernet
state: up
ipv4:
enabled: false
ipv6:
enabled: false
mtu: 1500
- name: br6
type: linux-bridge
state: up
bridge:
options:
group-forward-mask: 0
mac-ageing-time: 300
multicast-snooping: true
stp:
enabled: false
forward-delay: 15
hello-time: 2
max-age: 20
priority: 32768
port:
- name: veth0_c
stp-hairpin-mode: false
stp-path-cost: 100
stp-priority: 32
- name: veth0_s
stp-hairpin-mode: false
stp-path-cost: 100
stp-priority: 32
ipv4:
dhcp: false
enabled: false
ipv6:
dhcp: false
enabled: false
mac-address: AA:CF:A8:2D:6A:48
mtu: 1500
run 'nmstatectl set br6.yaml' and check the state:
[root@kvm-08-guest13 ~]0# nmstatectl show veth0_c,veth0_s,br6
---
dns-resolver:
config:
search: []
server: []
running:
search:
- hv2.lab.eng.bos.redhat.com
server:
- 10.19.42.41
- 10.11.5.19
- 10.5.30.160
routes:
config: []
running:
- destination: ff00::/8
metric: 256
next-hop-address: ''
next-hop-interface: veth0_c
table-id: 255
interfaces:
- name: br6
type: linux-bridge
state: up
bridge:
options:
group-forward-mask: 0
mac-ageing-time: 300
multicast-snooping: true
stp:
enabled: false
forward-delay: 15
hello-time: 2
max-age: 20
priority: 32768
port:
- name: veth0_s
stp-hairpin-mode: false
stp-path-cost: 100
stp-priority: 32
- name: veth0_c
stp-hairpin-mode: false
stp-path-cost: 100
stp-priority: 32
ipv4:
dhcp: false
enabled: false
ipv6:
autoconf: false
dhcp: false
enabled: false
mac-address: AA:CF:A8:2D:6A:48
mtu: 1500
- name: veth0_c
type: ethernet
state: up
ipv4:
dhcp: false
enabled: false
ipv6:
autoconf: false
dhcp: false
enabled: false
mac-address: 96:19:F9:A0:42:E6
mtu: 1500
- name: veth0_s
type: ethernet
state: up
ipv4:
dhcp: false
enabled: false
ipv6:
autoconf: false
dhcp: false
enabled: false
mac-address: 42:84:9D:71:6E:CC
mtu: 1500
[root@kvm-08-guest13 ~]0# ip -6 addr
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 2620:52:0:1038:5054:ff:fe84:9bc6/64 scope global dynamic noprefixroute
valid_lft 2591993sec preferred_lft 604793sec
inet6 fe80::5054:ff:fe84:9bc6/64 scope link noprefixroute
valid_lft forever preferred_lft forever
10: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 state UNKNOWN qlen 1000
inet6 fe80::bc4a:bbff:fe65:b48b/64 scope link
valid_lft forever preferred_lft forever
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, 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/RHBA-2020:1696 |
Description of problem: ipv6 is enabled automatically if added br0 with ipv6 disabled Version-Release number of selected component (if applicable): nmstate-0.0.7-1.el8.noarch How reproducible: Always Steps to Reproduce: 1. create veth as follows #!/bin/bash ip netns add client ip netns add server ip link add veth0_c type veth peer name veth0_c_p ip link add veth0_s type veth peer name veth0_s_p ip link set veth0_c_p netns client ip link set veth0_s_p netns server ip netns exec client ip link set lo up ip netns exec client ip link set veth0_c_p up ip netns exec client ip addr add 192.168.0.1/24 dev veth0_c_p ip netns exec server ip link set lo up ip netns exec server ip link set veth0_s_p up ip netns exec server ip addr add 192.168.0.2/24 dev veth0_s_p 2. add br0 with following yaml (nmstatectl set br0.yaml) interfaces: - name: veth0_c type: ethernet state: up ipv4: enabled: false ipv6: enabled: false mtu: 1500 - name: veth0_s type: ethernet state: up ipv4: enabled: false ipv6: enabled: false mtu: 1500 - name: br0 type: linux-bridge state: up bridge: options: group-forward-mask: 0 mac-ageing-time: 300 multicast-snooping: true stp: enabled: false forward-delay: 15 hello-time: 2 max-age: 20 priority: 32768 port: - name: veth0_c stp-hairpin-mode: false stp-path-cost: 100 stp-priority: 32 - name: veth0_s stp-hairpin-mode: false stp-path-cost: 100 stp-priority: 32 ipv4: dhcp: false enabled: false ipv6: dhcp: false enabled: false mac-address: AA:CF:A8:2D:6A:48 mtu: 1500 Actual results: ipv6 is enabled Expected results: ipv6 is disabled Additional info: [root@kvm-06-guest02 bridge]# nmstatectl show br0 ...... interfaces: - name: br0 type: linux-bridge state: up bridge: options: group-forward-mask: 0 mac-ageing-time: 300 multicast-snooping: true stp: enabled: false forward-delay: 15 hello-time: 2 max-age: 20 priority: 32768 port: - name: veth0_c stp-hairpin-mode: false stp-path-cost: 100 stp-priority: 32 - name: veth0_s stp-hairpin-mode: false stp-path-cost: 100 stp-priority: 32 ipv4: dhcp: false enabled: false ipv6: address: - ip: fe80::a8cf:a8ff:fe2d:6a48 prefix-length: 64 autoconf: false dhcp: false enabled: true mac-address: AA:CF:A8:2D:6A:48 mtu: 1500