Allowing WAN to LAN traffic via a ZYXEL EX3301-T0

BrownianBridge · April 25

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:

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 · April 25

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

Peter2 · April 25

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 · April 25

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 · 1:05AM

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.)

Allowing WAN to LAN traffic via a ZYXEL EX3301-T0

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