[pups] Supnik Emulator on Redhat Linux

Hi, I have successfully got the supnik emulator up and running on redhat but have hit a problem, which is probably configuration and serves to show how little I know about more recent unices. To allow computer to emulator comms I have installed a second card and enabled it under linux. It is enabled with a different address to the first one 192.168.1.10 and 192.168.1.11. The emulator can see both of the devices and I have attached device 1 (eth1) as xq0. I run up BSD2.11 on the emulator and it attaches to the ether device at start up. I can ftp from the emulator to the host and back again if I start ftp on the emulator. I can't telnet to the host. I can't telnet from the host to the emulator. I can't ftp from the host to the emulator. I also can't telnet in from a telnet session to the listening socket set up for a DZ11 (I could before I started trying to get the networking up). Ideas anyone? Robin