ERROR Address already in use

[Sandy Williams]

Hello, trying to migrate a VIP from one VPX to another VPX.  I deleted the VIP from the old VPX and adding it to the new VPX (after removing the IP I  tried pinging it and got nothing).

 

add lb vserver Storefront_LB_VS SSL x.x.x.x 443
ERROR: Address already in use
 

I also tried 'show arp' on the new VPX and saw the IP so I removed it from ARP.

 

I'm at a loss now.. I gave up and added the IP back to the old VPX because I'm wasting a lot of time.  The new VPX is running the very latest firmware - NS12.0 Build 57.24. The VPX that was my old one is running a few minor builds older..

[Ryan Goldstein]

go under netork > IP addresses and remove the IP from the orginal netscaler, removing VIP does not remove IP.

 

Maybe even on new netscaler its their by mistake

[Sandy Williams]

Nope, as soon as I remove the VIP the IP doesn't show up under network > IP Addresses

 

I just tried again, removed and tried to re-add to new.. nope..

 

On both did 'sh run | grep "< ip address>" and there's nothing

 

[Madhur Walia]

Hi,

Can you connect the new NS to putty and run "sh run | grep <VIP IP>". If this IP is already configured on NS, you will get to know the related config.

 

Regards,
Madhur

[Sandy Williams]

Yes, on both I ran 'sh run | grep "< ip address>"' and there's nothing (after I removed it from the old VPX)

[Eric Wiegand]

This is happening to me too. The network > IP address is gone. There's nothing in sh ns runningconfig -withdefaults... still says Address in use.
I'm on NetScaler NS12.0: Build 60.10.nc

[Eric Wiegand]

On 4/24/2018 at 4:10 PM, Sandy Williams said:

Yes, on both I ran 'sh run | grep "< ip address>"' and there's nothing (after I removed it from the old VPX)

 

Ok. so I figured it out. The Netscaler apparently creates a system service under the hood when you use a domain name in the session profiles. I was able to reuse the IP by unbinding the session profiles from Gateway and also editing the session action -wihome value with a fake url.

 

Once I changed the session action to a temporary bogus url, it allowed me to reuse the IP.