[Please excuse me if this is not the correct list to post this problem to. In this case, please let me know of the correct place.] I have NIST NET installed on my Linux box but I''m not able to make NIST NET do the routing for me. I have nistnet on 172.16.14.41 and I want to route packets from 172.16.14.22 to 172.16.14.44 thru 172.16.14.41 (nistnet). The route on 172.16.14.22 looks something like: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 172.16.14.23 172.16.14.41 255.255.255.255 UGH 0 0 0 eth0 172.16.14.44 172.16.14.41 255.255.255.255 UGH 0 0 0 eth0 172.16.14.0 0.0.0.0 255.255.254.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 172.16.14.1 0.0.0.0 UG 0 0 0 eth0 and on 172.16.14.44 the route is: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 172.16.14.41 255.255.255.255 UGH 0 0 0 eth0 172.16.14.22 172.16.14.41 255.255.255.255 UGH 0 0 0 eth0 172.16.14.23 172.16.14.41 255.255.255.255 UGH 0 0 0 eth0 172.16.14.0 0.0.0.0 255.255.255.128 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 172.16.14.1 0.0.0.0 UG 0 0 0 eth0 That is, effectively, I''ve added the routing between 172.16.14.22 & 172.16.14.44 to use 172.16.14.41 (nistnet) as the gateway. Using this setup, I assume I''m doing the right thing. Now in xnistnet, I set pipes for src 172.16.14.22 to dest 172.16.14.44 and vice versa. However, when I ping 172.16.14.44 from 172.16.14.22, I don''t get any response (and vice versa). The ICMP packets do reach 172.16.14.41, by the way. 14.41 does not seem to direct it to 14.44. Please let me know what I''m doing wrong. Is it that I cannot use NIST NET for a single interface card on my box? Any help is greatly appreciated. Nirnimesh. _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/