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  1. #1
    Newbie
    Join Date
    May 2020
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    Default Redirection of incoming snmp traps

    I would like to redirect incoming snmp traps to zabbix server which lies behind untagle.

    I created port forwarding rule for UDP 162 port, but it didn't work.

    I tried to investigate this problem, but I see no incoming UDP connections on the untagle, even if I create firewall rule to flag any UDP protocol. I tried different ports, but without success. TCP connections I can see without problem (with the same configuration of rules).

    Where can be a problem?

  2. #2
    Untangler jcoffin's Avatar
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    Aug 2008
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    Sunnyvale, CA
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    8,754

    Default

    Please post your port forward rule.
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  3. #3
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    May 2020
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    Default

    obrázek 001.jpg

    TCP works, UDP not

  4. #4
    Untangler jcoffin's Avatar
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    Default

    The rule looks correct. I would use packet test to capture traffic on the WAN to verify the Untangle is seeing the UDP packets on the WAN interface.
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  5. #5
    Newbie
    Join Date
    May 2020
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    Default

    Quote Originally Posted by jcoffin View Post
    The rule looks correct. I would use packet test to capture traffic on the WAN to verify the Untangle is seeing the UDP packets on the WAN interface.
    The packet test was a good idea, thank you. I saw no UDP packets on the WAN interface. I redirected traffic to other location with another untangle firewall and I can see incoming UDP. There must be something on the way.

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