Openwrt is not pingable from outside

hello!
i compiled openwrt from source for keenetic explorer
didn't do any configurations
internet is working

but it is not accessible from WWW
i checked with https://check-host.net/check-ping

  1. Show us your /etc/config/firewall.
  2. Are you behind CGNAT?
root@OpenWrt:~# cat /etc/config/firewall 
config defaults
	option syn_flood	1
#option input		REJECT
	option input		ACCEPT
	option output		ACCEPT
	option forward		REJECT
# Uncomment this line to disable ipv6 rules
#	option disable_ipv6	1

config zone
	option name		lan
	list   network		'lan'
	option input		ACCEPT
	option output		ACCEPT
	option forward		ACCEPT

config zone
	option name		wan
	list   network		'wan'
	list   network		'wan6'
#option input		REJECT
	option input		ACCEPT
	option output		ACCEPT
	option forward		REJECT
	option masq		1
	option mtu_fix		1

config forwarding
	option src		lan
	option dest		wan

# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
	option name		Allow-DHCP-Renew
	option src		wan
	option proto		udp
	option dest_port	68
	option target		ACCEPT
	option family		ipv4

# Allow IPv4 ping
config rule
	option name		Allow-Ping
	option src		wan
	option proto		icmp
	option icmp_type	echo-request
	option family		ipv4
	option target		ACCEPT

config rule
	option name		Allow-IGMP
	option src		wan
	option proto		igmp
	option family		ipv4
	option target		ACCEPT

# Allow DHCPv6 replies
# see https://github.com/openwrt/openwrt/issues/5066
config rule
	option name		Allow-DHCPv6
	option src		wan
	option proto		udp
	option dest_port	546
	option family		ipv6
	option target		ACCEPT

config rule
	option name		Allow-MLD
	option src		wan
	option proto		icmp
	option src_ip		fe80::/10
	list icmp_type		'130/0'
	list icmp_type		'131/0'
	list icmp_type		'132/0'
	list icmp_type		'143/0'
	option family		ipv6
	option target		ACCEPT

# Allow essential incoming IPv6 ICMP traffic
config rule
	option name		Allow-ICMPv6-Input
	option src		wan
	option proto	icmp
	list icmp_type		echo-request
	list icmp_type		echo-reply
	list icmp_type		destination-unreachable
	list icmp_type		packet-too-big
	list icmp_type		time-exceeded
	list icmp_type		bad-header
	list icmp_type		unknown-header-type
	list icmp_type		router-solicitation
	list icmp_type		neighbour-solicitation
	list icmp_type		router-advertisement
	list icmp_type		neighbour-advertisement
	option limit		1000/sec
	option family		ipv6
	option target		ACCEPT

# Allow essential forwarded IPv6 ICMP traffic
config rule
	option name		Allow-ICMPv6-Forward
	option src		wan
	option dest		*
	option proto		icmp
	list icmp_type		echo-request
	list icmp_type		echo-reply
	list icmp_type		destination-unreachable
	list icmp_type		packet-too-big
	list icmp_type		time-exceeded
	list icmp_type		bad-header
	list icmp_type		unknown-header-type
	option limit		1000/sec
	option family		ipv6
	option target		ACCEPT

config rule
	option name		Allow-IPSec-ESP
	option src		wan
	option dest		lan
	option proto		esp
	option target		ACCEPT

config rule
	option name		Allow-ISAKMP
	option src		wan
	option dest		lan
	option dest_port	500
	option proto		udp
	option target		ACCEPT


### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
#	option src		lan
#	option src_ip	192.168.45.2
#	option dest		wan
#	option proto	tcp
#	option target	REJECT

# block a specific mac on wan
#config rule
#	option dest		wan
#	option src_mac	00:11:22:33:44:66
#	option target	REJECT

# block incoming ICMP traffic on a zone
#config rule
#	option src		lan
#	option proto	ICMP
#	option target	DROP

# port redirect port coming in on wan to lan
#config redirect
#	option src			wan
#	option src_dport	80
#	option dest			lan
#	option dest_ip		192.168.16.235
#	option dest_port	80
#	option proto		tcp

# port redirect of remapped ssh port (22001) on wan
#config redirect
#	option src		wan
#	option src_dport	22001
#	option dest		lan
#	option dest_port	22
#	option proto		tcp

### FULL CONFIG SECTIONS
#config rule
#	option src		lan
#	option src_ip	192.168.45.2
#	option src_mac	00:11:22:33:44:55
#	option src_port	80
#	option dest		wan
#	option dest_ip	194.25.2.129
#	option dest_port	120
#	option proto	tcp
#	option target	REJECT

#config redirect
#	option src		lan
#	option src_ip	192.168.45.2
#	option src_mac	00:11:22:33:44:55
#	option src_port		1024
#	option src_dport	80
#	option dest_ip	194.25.2.129
#	option dest_port	120
#	option proto	tcp
root@OpenWrt:~# 

router is connected to cable modem of isp that converts coaxial cable to ethernet

they said everything should be fine, so it is something with router configuration

This is exceedingly dangerous.... under normal circumstances, you absolutely do not want the router's administrative and/or any other services (ssh, http/https, etc.) to be available to the internet.

What is your goal? And what problem are you trying to solve?

You didn't answer the second question.

i don't know does ISP use CGNAT

ssh to my router from anywhere

What are the first two octets (in bold: aaa.bbb.ccc.ddd) of the address shown after you issue this command:

ifstatus wan | grep address

For ssh, you should only open port 22. Not all services.

Beyond that, it is recommended instead to use a VPN... setup wireguard and that is a much more secure way to access your router.

https://openwrt.org/docs/guide-user/services/vpn/wireguard/server

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root@OpenWrt:~# ifstatus wan | grep address
	"ipv4-address": [
			"address": "10.68.204.243",
	"ipv6-address": [
		"ipv4-address": [
		"ipv6-address": [
root@OpenWrt:~#
root@OpenWrt:~# ip a | grep 243
    inet 10.68.204.243/19 brd 10.68.223.255 scope global eth0.2
root@OpenWrt:~#

You are behind NAT from your provider. That means that you do not have a public IP address on your OpenWrt router. As a result, direct connections via ssh (or even wireguard) will not be possible.

You can use something like tailscale or zero-tier to gain access to your router remotely.

https://openwrt.org/docs/guide-user/services/vpn/zerotier
https://openwrt.org/docs/guide-user/services/vpn/tailscale/start

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