Simple socket server example ---> unable to find working interfaces

[Altera_Forum]

Hello, 

 I started working with Altera Stratix 4 GX development board recently. I am trying to run the simple socket server example (nios 2 ethernet standard example - https://www.altera.com/support/support-resources/design-examples/intellectual-property/embedded/nios-ii/exm-net-std-de.tablet.html).   Reading from other posts I was able to build and compile it with static IP. I changed the BSP to disable DHCP. When I run it on the board, it seems not to recognize the Ethernet interface.   It says:  prepped 0 interfaces, initializing... inet setup error: unable to find any working interfaces panic: IP dtrap - needs breakpoint  Can anyone give a hint to where should I look to debug this? Or what should I do?  Thank You, Sud 

[Altera_Forum]

Hi all, 

 I found that Altera no longer supports the NicheStack TCP/IP Stack - Nios II Edition.   https://www.altera.com/support/support-resources/knowledge-base/solutions/fb172438.tablet.html  Is there any other alternative to buying the license?   If someone else faced the same problem as me and solved it.. let me know.