USG FLEX 500 - lan1 to lan 2 and lan2 to lan1

Smartmob
Smartmob Posts: 5  Freshman Member
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Hello I have a firewall usg flex 500 with lan 1 (192.168.0.0 GW 192.168.0.230) and lan 2 (192.168.33.0 GW 192.168.33.230) for both lan the GW is the firewall itself


I need to make the two lan's and consequently the clients talk by enabling ips control
I can ping the firewall from both subnets on ex: 192.168.0.190 --> 192.168.33.230 but I can't ping client to client 192.168.0.190--> 192.168.33.100
I have tried state route and policy route but to no effect. What am I missing?

All Replies

  • valerio_vanni
    valerio_vanni Posts: 119  Ally Member
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    You don't need to add routes, those destinations are included in "direct route".

    You could look at the logs, to see if some other firewall rule blocks traffic.

  • Smartmob
    Smartmob Posts: 5  Freshman Member
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    I see nothing from the firewall logs.
    Only if I enter a policy control (lan1 to lan2) I can see the ICMP pass as accepted even though I still receive unreachable from the client.

  • valerio_vanni
    valerio_vanni Posts: 119  Ally Member
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    It could be remote device that doesn't respond.

    What kind of device are you unable to ping? PC, printer, etc…

  • PeterUK
    PeterUK Posts: 3,461  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    edited October 23

    likely a firewall on end device

    unless you have enabled "Use IPv4 Policy Route to Overwrite Direct Route" ?with routeing rule like LAN1 next hop WAN?

  • Smartmob
    Smartmob Posts: 5  Freshman Member
    First Comment Friend Collector

    is a server with dual ports 1) with the subnet 192.168.0.179 the 2) with the subnet 192.168.33.100
    And I am trying to ping the second port from a client under subnet 192.168.0.x

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,594  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Hi @Smartmob,

    It seems like your client is using Windows OS. Have you disabled the Windows firewall before testing?

    And if 192.168.33.230 can ping to 192.168.33.100?

    Zyxel Melen


  • Smartmob
    Smartmob Posts: 5  Freshman Member
    First Comment Friend Collector

    Yes, the firewall is deactivated.
    Indeed it seems that from 192.168.33.230 I cannot ping the .100
    but I simply set a static ip

  • valerio_vanni
    valerio_vanni Posts: 119  Ally Member
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    Inside 192.168.33.x LAN you have only that host (.100)?

    Don't you have something other to ping?