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RED only works with DHCP enabled on WAN

littleghost
Hi,

I installed a new RED HW Rev. 3 in a remote office. The router does not have the option to enable the DHCP-Service, so I configured the RED on ASG with a static (public!) uplink address.
For the first RED configuration I used an old router with enabled DHCP-Service as switch for the RED and the new router.
The RED connected successfully on first attempt and established a VPN with the main office.
The problem is, that the RED always takes the WAN IP-Adress from the DHCP und didn't use the configured static address. When I remove the old router and reset the RED, the appliance can't find the router [[:(]]

The configuration:

Main Office:
ASG 120 Ver. 8.301
RED-Configuration
Uplink mode: Static Address
Address: 8.8.8.5
Netmask: 255.255.255.248
Gateway: 8.8.8.6

Branch Office:
Old Router DHCP-Server
DHCP-Range: 8.8.8.3 - 8.8.8.4
Gateway: 8.8.8.6

RED always use the address 8.8.8.3 as DHCP-Client [[:(]]


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  • 0
    Hi littleghost,

    I will be deploying 4 REDs next week - 3 of which require static IPs. I have performed the RED initialization via DHCP and like you it was successful.  I had the concern that static IP would be ignored.  I contacted Astaro Support and though I have yet to test it, my understanding from Support is that the RED will attempt DHCP first then use the configured static address if that fails.

    My suggestion would be to disable the DHCP server on the router.  If Astaro Support is correct, when the RED fails to obtain an IP via DHCP it will fallback to the statically assigned IP in the config. FYI - be aware of the DHCP lease duration.

    Hope this helps.
  • 0 in reply to abougher
    Hi abougher,

    thanks for the fast answer. I already tried to connect the RED directly with the router but it doesn't work. Even the tests with a switch were unsuccessful - so I can exclude Speed-Negotation-Problemes [:(]
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