- To resolve the mac address of an IP address off the local network, I believe the "Who-has" has to be sent to the IP address of the default gateway (or router). For that to happen ARP has to know the address of the default gateway and the net mask.
- To resolve the mac address of an IP address off the local network, I believe the "Who-has" has to be sent to the IP address of the default gateway (or router). For that to happen ARP has to know the address of the default gateway and the net mask.
In the tar ball I've attached, I modified ARP_req.vhd to provide this functionality. I may be useful to you or someone else who downloads the core... also updated the tb to check this.
In the tar ball I've attached, I modified ARP_req.vhd to provide this functionality. I may be useful to you or someone else who downloads the core... also updated the tb to check this.
- Bugs fixed by Tim Brooks:
- Bugs fixed by Tim Brooks:
-- In IPV4_TX, I've removed signal "mac_data_out_ready_reg". It was causing tx_count to be wrong by 1 at the end of a transfer where mac_data_out_ready when low during the transfer. IP_tx_tb didn't catch it. I use Xilinx Isim and it seems that "wait for clk_period" causes signals to change, in effect, just before the clock. I replaced with wait until clk = '1' thorough that test-bench, which assure that the signal changes as if it where clocked. You may want to check this with your simulator and, if you have similar results, you may want to change "wait for clk_period" to "wait until clk = '1'" throughout your test-benches...
-- In IPV4_TX, I've removed signal "mac_data_out_ready_reg". It was causing tx_count to be wrong by 1 at the end of a transfer where mac_data_out_ready when low during the transfer. IP_tx_tb didn't catch it. I use Xilinx Isim and it seems that "wait for clk_period" causes signals to change, in effect, just before the clock. I replaced with wait until clk = '1' thorough that test-bench, which assure that the signal changes as if it where clocked. You may want to check this with your simulator and, if you have similar results, you may want to change "wait for clk_period" to "wait until clk = '1'" throughout your test-benches...
