Unable to use IPv6 on rootless podman container.

[ravi557]

i have cretaed a bridge and attched to teh container but when am tring to access google inside conatiner faing could connect error

Output of podman info:

vm

host:
arch: amd64
buildahVersion: 1.31.2
cgroupControllers:

• memory
• pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
  package: conmon_2:2.1.8-0ubuntu22.04+obs16.23_amd64
  path: /usr/bin/conmon
  version: 'conmon version 2.1.8, commit: '
  cpuUtilization:
  idlePercent: 90.28
  systemPercent: 1.75
  userPercent: 7.96
  cpus: 4
  databaseBackend: boltdb
  distribution:
  codename: jammy
  distribution: ubuntu
  version: "22.04"
  eventLogger: journald
  freeLocks: 2039
  hostname: ubuntu
  idMappings:
  gidmap:
  • container_id: 0
    host_id: 1000
    size: 1
  • container_id: 1
    host_id: 100000
    size: 65536
    uidmap:
  • container_id: 0
    host_id: 1000
    size: 1
  • container_id: 1
    host_id: 100000
    size: 65536
    kernel: 5.15.0-73-generic
    linkmode: dynamic
    logDriver: journald
    memFree: 2538020864
    memTotal: 16778788864
    networkBackend: netavark
    networkBackendInfo:
    backend: netavark
    dns:
    package: aardvark-dns_1.6.0-0ubuntu22.04+obs34.25_amd64
    path: /usr/libexec/podman/aardvark-dns
    version: aardvark-dns 1.6.0
    package: netavark_1.3.0-0ubuntu22.04+obs22.9_amd64
    path: /usr/libexec/podman/netavark
    version: netavark 1.3.0
    ociRuntime:
    name: crun
    package: crun_101:1.11.1-0ubuntu22.04+obs63.1_amd64
    path: /usr/bin/crun
    version: |-
    crun version 1.11.1
    commit: 1084f9527c143699b593b44c23555fb3cc4ff2f3
    rundir: /run/user/1000/crun
    spec: 1.0.0
    +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +YAJL
    os: linux
    pasta:
    executable: ""
    package: ""
    version: ""
    remoteSocket:
    exists: true
    path: /run/user/1000/podman/podman.sock
    security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: false
    serviceIsRemote: false
    slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns_1.2.2-0ubuntu22.04+obs12.11_amd64
    version: |-
    slirp4netns version 1.2.2
    commit: 0ee2d87523e906518d34a6b423271e4826f71faf
    libslirp: 4.6.1
    SLIRP_CONFIG_VERSION_MAX: 3
    libseccomp: 2.5.3
    swapFree: 4293378048
    swapTotal: 4294963200
    uptime: 0h 49m 23.00s
    plugins:
    authorization: null
    log:
• k8s-file
• none
• passthrough
• journald
  network:
• bridge
• macvlan
• ipvlan
  volume:
• local
  registries:
  2620:145:400::87:9443:
  Blocked: false
  Insecure: true
  Location: 2620:145:400::87:9443
  MirrorByDigestOnly: false
  Mirrors: []
  Prefix: 2620:145:400::87:9443
  PullFromMirror: ""
  localhost:9443:
  Blocked: false
  Insecure: true
  Location: localhost:9443
  MirrorByDigestOnly: false
  Mirrors: []
  Prefix: localhost:9443
  PullFromMirror: ""
  store:
  configFile: /home/ubuntu/.config/containers/storage.conf
  containerStore:
  number: 3
  paused: 0
  running: 3
  stopped: 0
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/ubuntu/.local/share/containers/storage
  graphRootAllocated: 88179048448
  graphRootUsed: 14806335488
  graphStatus:
  Backing Filesystem: extfs
  Native Overlay Diff: "true"
  Supports d_type: "true"
  Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
  number: 3
  runRoot: /run/user/1000/containers
  transientStore: false
  volumePath: /home/ubuntu/.local/share/containers/storage/volumes
  version:
  APIVersion: 4.6.2
  Built: 0
  BuiltTime: Thu Jan 1 00:00:00 1970
  GitCommit: ""
  GoVersion: go1.18.1
  Os: linux
  OsArch: linux/amd64
  Version: 4.6.2
  command i have ran insdie container

---

curl -kv -g -6 https://google.com

• Trying [2607:f8b0:4004:c1d::71]:443...
• connect to 2607:f8b0:4004:c1d::71 port 443 failed: Network is unreachable
• Trying [2607:f8b0:4004:c1d::8b]:443...
• connect to 2607:f8b0:4004:c1d::8b port 443 failed: Network is unreachable
• Trying [2607:f8b0:4004:c1d::64]:443...
• connect to 2607:f8b0:4004:c1d::64 port 443 failed: Network is unreachable

network bridge output

[
{
"name": "bridge1",
"id": "f411112c51ce1f62358a3715c121b5394191dd717dfddbaecfed4897ca830e9e",
"driver": "bridge",
"network_interface": "podman1",
"created": "2023-11-14T11:33:52.266137812Z",
"subnets": [
{
"subnet": "172.18.0.0/29",
"gateway": "172.18.0.1"
},
{
"subnet": "fd00:d311:e3c:5c6::/64",
"gateway": "fd00:d311:e3c:5c6::1"
}
],
"ipv6_enabled": true,
"internal": false,
"dns_enabled": true,
"ipam_options": {
"driver": "host-local"
}
}
]
enable the slirp4netns ipv6 option in containers.conf

root 51626 0.0 0.0 6036 3272 pts/2 S 11:33 0:00 /usr/bin/slirp4netns --disable-host-loopback --mtu=65520 --enable-sandbox --enable-seccomp --enable-ipv6 -c -r 3 --netns-type=path /run/user/1000/netns/rootless-netns-98073043b98478303989 tap0
root 60021 0.0 0.0 6476 2288 pts/3 S+ 12:14 0:00 grep --color=auto slirp