I have a bunch of public IP addresses, for example, in the range 192.168.1.100-192.168.1.104. I have a 5 computers on my internal network statically defined from 192.168.0.100-192.168.0.104. I am trying to create a rule where each computer will always map to the same public ip address. For example I did: iptables -t nat -s 192.168.0.100 -j SNAT --to-source 192.168.1.100. The problem is if I try to do a ping from 192.168.0.100 it correctly gets translated to 192.168.1.100 and the ping goes out, but when the reply comes back there is an ARP request for WHO-HAS 192.168.1.100, and since no-one technically holds this address no reply is ever sent, and the ping reply gets dropped. Does anyone know a solution to this problem? Thanks for your time, -- --------------------------------------- Michael Barry -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.2.5 (GNU/Linux) mQGiBD+g+0URBADCYQfUXqlCotTnSbprbyOResgLUTYxERMj50z3+16SeELpKOFT IlfUhWrKcBoQlIyt8jBL/raN8sc8uVAklIDXmcmBzwhTlZu8mwb63GfTstqDSeBO mdPQlWd4RlKUABinHymFL16XFjGBWdqDsimP0sLVtxygljtOrrTLDLMdPwCg5Sho AmvLz/9XrgH4Og2BI2w4GO0D/20S3/oTZoAe0Uu9H7qUmsphg1Rk5cqn2zg5Fd7h 2KaNZjtntgd/2nK9eb1zlwcYEI++TxWJiEFMqSa0+Vr8zj8yDINhRLzIFTkNGkI9 0aJNVmZ9Vm6hEeDTTZ91d+pnzRLwbGPyu7xvddlSsn9uILI8KrIp/7gPKqfo5c8z rXCJBACu/SkTyrXxlEz5L0BmvMyiKwPZGsfqvPp3ZRhKfSZvx7TFa2UvlGN5jQJD qIDP1DH0foOQV1oX/tngBLwLFaIsTfO7brYcKX+uT0k/Q1vT2aBmHAQA4xduG2dg eXJyBLwYtM1sKTNQj5fnmKZtHE1Vij2uAGUowmKOSuiEOf6/D7QjTWljaGFlbCBC YXJyeSA8bWJhcnJ5QGNzLnVtYXNzLmVkdT6IXgQTEQIAHgUCP6D7RQIbAwYLCQgH AwIDFQIDAxYCAQIeAQIXgAAKCRDZGaOeesLyC/F+AKClFpol8BoIm8yDxBiMmCWd K/pZawCfQb8oetmw5lIyHMVelC7ir+wasb+5AQ0EP6D7RxAEAKuLODeCFV+aVi7z 2qdE1oYNrH+AitdiB36W/SkLEb8YlXZ/cGFBl4gPspdA93mLyjrlLg5xp+kXVeAU DbaYLl9pz4wtmz3GqnyqQdgAPW3XjEv5Dkau+RzKAmlze87x2mw8Zn0ffvcalRFm +fAEDOvaZquVVljYxgkktI2G6MIPAAQNBACQ4LvuAH+LKbn5NYis+ifEHA4QYPBH jtPe2Rb4keAp4azr6Qy1iJTuF/6+G8qCyraoqjk5wlMC7c8gjxCNkXA2VEX0+bXt pb85nrQlL0udf8V2ffukxlXOmFo43j85jljzLLk535P/lCXrbiDnW4W5/+8Qpn/z aDpqDeLSAX/+a4hJBBgRAgAJBQI/oPtHAhsMAAoJENkZo556wvILN3gAn3/x2PNm O1mycJQtyUpCFRXEp8EWAKDPxWTPlx5Ii9DaWadahV4b9LRe4A== =qjmb -----END PGP PUBLIC KEY BLOCK-----