I have a SPARC 5 with Dual NICs. One is built-in the other is an added SBUS card. One NIC is set to a 10.0.0.2 address and the other is set 192.168.1.8. I have placed this computer into my network which has both networks. I can ping out the 10.0.0.2 interface and it works. I can not ping out the 192.168.1.8 interface. I have changed the MAC Address to the one NIC so that both NICs have a different MAC address. This did not help. Could anyone help me to understand why I can not ping the 192.168.1.1 computer yet I can ping the 10.0.0.1 computer? David Demland