Allowing WAN to LAN traffic via a ZYXEL EX3301-T0

BrownianBridge

Hi,

I am trying to communicate with a device on my LAN from the internet.

I have a static IP, and the IP listed on my routers GUI matches that visible from the internet (for example, via a 'find my ip' service).

I have attempted allowing Ping access to my network. I have:

1. Created three Protocols:
   a) Name: PingTest

Ports/Protocol Number: ICMP: 0 /Echo-reply

b) Name: PingBack

Ports/Protocol Number: ICMP: 8/Echo-request

2. Added Access Control List Rules:

a) Source IP: Any/32

Destination IP: Any/32

Service: Ping

Action: ACCEPT

b) Source IP: Any/32

Destination IP: Any/32

Service: PingBack

Action: ACCEPT

I expected the above to allow ping interaction from the internet to my routers IP. When I ping my routers IP, I receive no response. 100% packet failure.

Could I please ask what I am missing ?

Cheers.

Liba

You need to check whether "PING" is enabled in the settings on the remote management page.

Peter2

I think first you need a port forwarding for the special needed service of this LAN device and then you can test it with a ping to these ports from outside WAN .

BrownianBridge

https://community.zyxel.com/en/discussion/comment/76997#Comment_76997

Thankyou Liba. Unfortunately, the 'remote management' section, as mentioned in the Zyxel help manual, is not accessible in my routers GUI.

awm22

Any further joy on this? similar issues and lack of progress for the EX5601-T0

As @BrownianBridge did, I setup the protocols for ICMP echo request and reply; added ACLs for this (not actually sure if I wanted WAN to ROUTER or WAN to LAN so tried each, without joy)

Has anyone (with the under-norished router GUI/ssh) got tcpdump to work? its a command thats listed but I can't get it to run. (some sort of nailed down syntax I'd guess.)