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ER605 Block ping from WAN

ER605 Block ping from WAN

ER605 Block ping from WAN
ER605 Block ping from WAN
2025-12-10 19:04:40 - last edited 2025-12-19 03:29:50
Tags: #Firewall
Model: ER605 (TL-R605)  
Hardware Version: V2
Firmware Version: 2.3.3

Hello

 

I want to ask about "Block ping from WAN" function in FireWall section (ER605 HW v2.20 latest firmware 2.3.3).

The box is checked and I can't ping my WAN and that's OK.

When uncheck box and save, I can ping my WAN and that's OK.

When I try to check box again to block ping from WAN and save I can still ping my WAN :(

After reboot everything is OK, ping from WAN is blocked.

Is it normal that uncheck box allow ping without reboot (immediately) but checking box again doesn't block ping from WAN right away? (till reboot).

Checked with Omada controller and ER605 in standalone mode and the same behavior.

I didn't check other options in FireWall section.

 

Is it bug or normal behavior (feature).

 

Thank you for explanation.

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#1
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1 Accepted Solution
Re:ER605 Block ping from WAN-Solution
2025-12-19 03:29:48 - last edited 2025-12-19 03:29:50

  @KajtekKajtek 

We tested locally: after re-enabling “Loock Ping from WAN,” we waited two minutes and then pinged the WAN address; the ping failed, but we could not reproduce the issue you reported.
If you can reproduce it consistently, please re-enable the option, wait two minutes, capture a mirror packet trace, and verify whether the ICMP packets actually reach the WAN interface.How to capture packets using Wireshark on SMB router or switch

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
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#4
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6 Reply
Re:ER605 Block ping from WAN
2025-12-17 07:27:18 - last edited 2025-12-17 13:09:43

  @KajtekKajtek 

After re-enabling it, wait a few minutes and then try pinging the WAN again to see if it still responds.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
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#2
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Re:ER605 Block ping from WAN
2025-12-17 13:13:39

  @Ethan-TP 

I've waited 38 minutes :( Didn't work. Ping isn't blocked again. Only after reboot.

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#3
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Re:ER605 Block ping from WAN-Solution
2025-12-19 03:29:48 - last edited 2025-12-19 03:29:50

  @KajtekKajtek 

We tested locally: after re-enabling “Loock Ping from WAN,” we waited two minutes and then pinged the WAN address; the ping failed, but we could not reproduce the issue you reported.
If you can reproduce it consistently, please re-enable the option, wait two minutes, capture a mirror packet trace, and verify whether the ICMP packets actually reach the WAN interface.How to capture packets using Wireshark on SMB router or switch

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
Recommended Solution
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#4
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Re:ER605 Block ping from WAN
2025-12-29 12:27:00

  @Ethan-TP 

Hi

What exactly filter example should I use?

icmp and my WAN IP???

Thank you

 

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#5
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Re:ER605 Block ping from WAN
2 weeks ago

  @KajtekKajtek 

Yes, you can filter it this way.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch
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#6
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Re:ER605 Block ping from WAN
22 hours ago - last edited 22 hours ago

  @Ethan-TP 

Yes, I confirm that WAN is responding (15 minutes after "disable ping from WAN" option). After gateway reboot ping is blocked.

 

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#7
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