+++ This bug was initially created as a clone of Bug #1918417 +++

# cat pod-config.json
{
    "metadata": {
        "name": "alpine-sandbox",
        "namespace": "default",
        "attempt": 1,
        "uid": "hdishd83djaidwnduwk28bcsb"
    },
    "log_directory": "/tmp",
    "linux": {
    }
}

# cat container-pod.json
{
  "metadata": {
      "name": "alpine"
  },
  "image":{
      "image": "alpine"
  },
  "command": [
      "sleep", "3600"
  ],
  "log_path":"alpine.0.log",
  "linux": {
	"security_context": {
		"capabilities": {
			"add_capabilities": [
				"net_raw"
			]
		}
	}
  }
}

# crictl runp --runtime=kata pod-config.json 
a38230720451583ade7c0b84fa7d08663e3417b52ad2ffadca9b553fb36d82d3

# crictl create a38230720451583ade7c0b84fa7d08663e3417b52ad2ffadca9b553fb36d82d3 container-pod.json pod-config.json 
30e947cd0a85eab9634cef2975acd18d3e98367eeac1826506cea9d6d0bb78

# crictl start 30e947cd0a85eab9634cef2975acd18d3e98367eeac1826506cea9d6d0bb78

# crictl stop 30e947cd0a85eab9634cef2975acd18d3e98367eeac1826506cea9d6d0bb78

# crictl rm 30e947cd0a85eab9634cef2975acd18d3e98367eeac1826506cea9d6d0bb78

# crictl stopp a382307204515
FATA[0000] stopping the pod sandbox "a382307204515": rpc error: code = Unknown desc = failed to destroy network for pod sandbox k8s_ubi8-sandbox_default_hdishd83djaidwnduwk28bcsb_1(a38230720451583ade7c0b84fa7d08663e3417b52ad2ffadca9b553fb36d82d3): running [/usr/sbin/ip6tables -t nat -D POSTROUTING -s 1100:200::5/24 -j CNI-7860ea922d1a46225b9c13c1 -m comment --comment name: "crio" id: "a38230720451583ade7c0b84fa7d08663e3417b52ad2ffadca9b553fb36d82d3" --wait]: exit status 1: iptables: Bad rule (does a matching rule exist in that chain?).

cri-o-1.20.0-0.rhaos4.7.git845747f.el8.40.x86_64
cri-tools-1.20.0-1.el8.x86_64

--- Additional comment from Qian Cai on 2021-01-20 16:43:14 UTC ---

This could be reproduced using vanilla containers as well.

--- Additional comment from Peter Hunt on 2021-01-21 15:51:01 UTC ---

what are the contents of the files in `/etc/cni/net.d`

--- Additional comment from Peter Hunt on 2021-01-21 15:53:29 UTC ---

This should be fixed upstream in https://github.com/containernetworking/plugins/pull/563, though there isn't a corresponding release yet. I would build your plugins off of the main branch (or just the bridge plugin, really)

--- Additional comment from Qian Cai on 2021-01-21 16:08:47 UTC ---

(In reply to Peter Hunt from comment #2)
> what are the contents of the files in `/etc/cni/net.d`

Just the standard CNI file from cri-o-1.20.0-0.rhaos4.7.git845747f.el8.40.x86_64.

--- Additional comment from Qian Cai on 2021-01-21 16:14:22 UTC ---

# cat /etc/cni/net.d/100-crio-bridge.conf
{
    "cniVersion": "0.3.1",
    "name": "crio",
    "type": "bridge",
    "bridge": "cni0",
    "isGateway": true,
    "ipMasq": true,
    "hairpinMode": true,
    "ipam": {
        "type": "host-local",
        "routes": [
            { "dst": "0.0.0.0/0" },
            { "dst": "1100:200::1/24" }
        ],
        "ranges": [
            [{ "subnet": "10.85.0.0/16" }],
            [{ "subnet": "1100:200::/24" }]
        ]
    }
}