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WAN Interface failure using multiple IPs

Master K

Anyone have this issue?

Using Comcast Business with 5 IP addresses. 

1 IP stays up with no problem, the others fail several times throughout the day.  MTU is fine but I have to turn the adapters off and back on several times per day. Very frustrating.

the Main IP (used when configured) stays up with no problem and never requires reset.

 

any help would be appreciated!



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  • 0 in reply to sachingurung

    The internal address is fine, the Main connection (Setup with the wizard on install) is fine, does not go down.

    Exchange and SharePoint go down several times throughout the day and I have to toggle the interface off (down) then back on and it works again for several hours.

  • 0 in reply to Master K

    Not sure how you set these additional interfaces up, but I think you shouldn't create additional interfaces, but instead use the Additional Addresses tab to add additional addresses.

  • 0 in reply to apijnappels

    Ok, odd.  That works for one address but not for both.  The one works with no issues, the other does not even ping but, If I add the other IP as a new interface it works fine (for now)

  • 0 in reply to Master K

    If you change to additional addresses, you will most likely also need to adjust your DNAT and/or firewall rules accordingly....

  • 0 in reply to apijnappels

    There really isn't much to tweak, this is a basic out of the box install with very little changes, basically the only NAT / Firewall rules are for https.  After checking everything there is still only 1 additional IP that works, the other does not.

  • 0 in reply to Master K

    You say you have a basic setup with very little changes. Then what do you test so you know that 1 IP does work and the other doesn't?

    Ping traffic is handled by the ICMP tab where you can configure what UTM does with ICMP (ping, traceroute) traffic.

    If you want services/servers to be reachable by an additional IP, you will need to create a DNAT rule for traffic arriving on Additional IP [address] and the correct service (ie HTTPS or any other service that you need).

    If you specify what exactly does (or does not) work and what you did to test, we might be able to help you further.

  • 0 in reply to apijnappels

    I had to reset the provider router and it is working now. 

     

    I have a several web servers setup and had each IP forwarded for https so I could test.  But after the Provider router reboot it is working using the Additional IP addresses.  Hopefully it will stay up and all will be good.

    thank you for the advice!

  • 0 in reply to Master K

    Hi Master,

     suggestion of configuring an additional interface is the solution. Restarting the Router might have initialized the arp request and the additional addresses would have come UP. Let us know if you still face the issue.

    Thanks