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SA520W does not get IP on optional WAN

Answered Question

We are using a SA520W as our primary router and have a fiber connection attached to the default WAN interface. We would like to improve our uptime using a secondary internet connection on the optional WAN interface.


We have bought a dovado tiny 4g router for this other connection. It acts as a dhcp server but the Cisco router does not get an IP from the dovado router. The router works as expected when connected to a normal computer. But somehow the cisco router doesnt get an IP.


I have also tried to set a static IP for the Cisco router but that didn't help either. The dovado router is setup do deliver ip in the range 192.168.0.2-254


Link is up but WAN state is Down. Any ideas?


sa520w.png

Correct Answer by jasbryan about 5 years 6 months ago

Christian,


Make sure optional port is set to WAN and WAN mode = LOAD BALANCE MODE . If will not pull an ip address or negotiate a connection.



Jasbryan

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rmanthey Fri, 02/10/2012 - 08:33
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Hello Christian,


What is the port configuration settings, set to 10/100/1000 Half or Full. If Auto try manually changing. Also you can try to clone the mac address, or set the mdi/mdix settings on the G4 router if possible.


Cisco Small Business Support Center

Randy Manthey

CCNA, CCNA - Security

Correct Answer
jasbryan Fri, 02/10/2012 - 08:39
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Christian,


Make sure optional port is set to WAN and WAN mode = LOAD BALANCE MODE . If will not pull an ip address or negotiate a connection.



Jasbryan

jasbryan Mon, 02/13/2012 - 09:07
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Christian,


Auto rollover is fine - it just will not get/show an IP Address on your status until it fails over.


Jasbryan

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