Destination NAT translation shows 0.0.0.0 on CSS 11503

[inayathulla1]

Hi Giles,

I have CSS11506-2AC ConServSw and the Problem is sometimes the dst nat is 0.0.0.0 and sometime there is ip address.

here is the nat table:

1)

172.25.11.171 8080 84.149.88.240 56618 84.149.88.240 TCP 4/2 4/1

&

2)

172.25.11.171 8080 134.109.96.124 46851 0.0.0.0 TCP 4/2 4/1

Kindly let me know wheather is this the known problem are there is some issue with the css switch.

Any reply will be greatly appriciated.

Thanks in advance

[skumar1969]

Inayathulla,

I think the dst nat 0.0.0.0 packets are actually health-check packets for querying the servers state of healthyness, intiated by the CSS.

Usually there would be an Inport entry but nothing on the Outport, just a blank.

Happy if someone can give their input as well on this issue.

thanks