Date: Tue, 09 Apr 2002 10:04:55 -0700 From: Lars Eggert <larse@ISI.EDU> To: Dennis Pedersen <trm@daydreamer.dk> Cc: freebsd-net@freebsd.org Subject: Re: IPsec tunnel mode Message-ID: <3CB31F37.7020504@isi.edu> References: <MPENKFCCIIDAJKJJOLBHMEAJCNAA.tariq@inty.net> <5.1.0.14.0.20020408200151.01cac1f0@mail.drwilco.net> <007501c1df3f$326d92a0$0301a8c0@dpws> <3CB20A6D.3040704@isi.edu> <00a801c1dfaf$925aa750$0301a8c0@dpws> <3CB3146A.7080906@isi.edu> <003c01c1dfe6$8460e7e0$0301a8c0@dpws>
next in thread | previous in thread | raw e-mail | index | archive | help
This is a cryptographically signed message in MIME format. --------------ms020508050401080708070405 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Dennis Pedersen wrote: >>Setting up the other approach (IPIP tunnel + IPsec transport mode) works >>by first setting up the tunnels (see the gifconfig/ifconfig man pages) >>and stringing the topology together with route (route man page). No >>other commands are needed. Once this works (i.e. you see correctly >>encapsulated packets flow between your machines) you can then manually >>configure IPsec transport mode SAs (via setkey) or use IKE. > > But the last document where the auther creates some alias to lo0 and runs > natd on the gif interface isnt that the right way of doing it (lets just > forget ipsec for now and look stricktly on IPIP) or? The alias on loopback is simply working around a small bug with gif interfaces. (Normally you can ping the local address of a any interface; with KAME gifs you can't. The alias works around that.) NAT is not required to make the overlay setup work. (The example you gave includes it so that overlay nodes with RFC1918 addresses can talk to the real Internet. This is an orthogonal issue.) > According to what you are writing this isnt the way of doing it? (and there > you seem to have lost me..) There are TWO ways of doing this: 1. IPsec tunnel mode - you don't need any gifs - you must use IPsec selectors to match & forward your traffic 2. IPIP tunnels + transport mode - you do need gifs but ONLY with IPsec TRANSPORT mode SAs - you use regular routes to forward your traffic Pick one. > About the Kame Newsletters i belive to have read all of them that have > relevance of ĪPsec, anything specifik im missing? Configuring KAME for IPsec: manual keying http://www.kame.net/newsletter/19980626/ Simple Configuration Sample of IPsec/Racoon http://www.kame.net/newsletter/20001119/ Changed manual key configuration for IPsec http://www.kame.net/newsletter/19991007/ Lars -- Lars Eggert <larse@isi.edu> Information Sciences Institute http://www.isi.edu/larse/ University of Southern California --------------ms020508050401080708070405 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIInzCC ArUwggIeoAMCAQICAwWBRzANBgkqhkiG9w0BAQIFADCBkjELMAkGA1UEBhMCWkExFTATBgNV BAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UEBxMJQ2FwZSBUb3duMQ8wDQYDVQQKEwZUaGF3dGUx HTAbBgNVBAsTFENlcnRpZmljYXRlIFNlcnZpY2VzMSgwJgYDVQQDEx9QZXJzb25hbCBGcmVl bWFpbCBSU0EgMjAwMC44LjMwMB4XDTAxMDgyNDE2NDAwMFoXDTAyMDgyNDE2NDAwMFowVDEP MA0GA1UEBBMGRWdnZXJ0MQ0wCwYDVQQqEwRMYXJzMRQwEgYDVQQDEwtMYXJzIEVnZ2VydDEc MBoGCSqGSIb3DQEJARYNbGFyc2VAaXNpLmVkdTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkC gYEA0AvLBsD78nxcUHeHkaMgl3b4qYPnfgbf8Lh+HQP8RgGMRG/Yb+vTpkGezlwt9pkJxiD1 1uZDy4CNNJUu3gKxKSb+zRV70O+lkwwftuHoLHoH4xwo3LcQ2LGDpd+I95tUN4dfJ3TmeEcU SF50dC/SuUI4w8AlhXQ8IxrhgdayTpECAwEAAaNWMFQwKgYFK2UBBAEEITAfAgEAMBowGAIB BAQTTDJ1TXlmZkJOVWJOSkpjZFoyczAYBgNVHREEETAPgQ1sYXJzZUBpc2kuZWR1MAwGA1Ud EwEB/wQCMAAwDQYJKoZIhvcNAQECBQADgYEAheZhn0pQA8zI7U2K1ZIAl11j0a1DKxnp3GtT vOUrGRB3WvYxidvdZ1kizhEsWeXU81TkNDH0DaRqtOEeu6Q2OhB+jeKEqY7IDAJE4/fI0e+d 6PnG1hd+vEvYmsKHkmzBhPc94XUOKNWO+qVNP2NGyNI3QIDy5wX4fdcOo1S34r4wggK1MIIC HqADAgECAgMFgUcwDQYJKoZIhvcNAQECBQAwgZIxCzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxX ZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEPMA0GA1UEChMGVGhhd3RlMR0wGwYD VQQLExRDZXJ0aWZpY2F0ZSBTZXJ2aWNlczEoMCYGA1UEAxMfUGVyc29uYWwgRnJlZW1haWwg UlNBIDIwMDAuOC4zMDAeFw0wMTA4MjQxNjQwMDBaFw0wMjA4MjQxNjQwMDBaMFQxDzANBgNV BAQTBkVnZ2VydDENMAsGA1UEKhMETGFyczEUMBIGA1UEAxMLTGFycyBFZ2dlcnQxHDAaBgkq hkiG9w0BCQEWDWxhcnNlQGlzaS5lZHUwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANAL ywbA+/J8XFB3h5GjIJd2+KmD534G3/C4fh0D/EYBjERv2G/r06ZBns5cLfaZCcYg9dbmQ8uA jTSVLt4CsSkm/s0Ve9DvpZMMH7bh6Cx6B+McKNy3ENixg6XfiPebVDeHXyd05nhHFEhedHQv 0rlCOMPAJYV0PCMa4YHWsk6RAgMBAAGjVjBUMCoGBStlAQQBBCEwHwIBADAaMBgCAQQEE0wy dU15ZmZCTlViTkpKY2RaMnMwGAYDVR0RBBEwD4ENbGFyc2VAaXNpLmVkdTAMBgNVHRMBAf8E AjAAMA0GCSqGSIb3DQEBAgUAA4GBAIXmYZ9KUAPMyO1NitWSAJddY9GtQysZ6dxrU7zlKxkQ d1r2MYnb3WdZIs4RLFnl1PNU5DQx9A2karThHrukNjoQfo3ihKmOyAwCROP3yNHvnej5xtYX frxL2JrCh5JswYT3PeF1DijVjvqlTT9jRsjSN0CA8ucF+H3XDqNUt+K+MIIDKTCCApKgAwIB AgIBDDANBgkqhkiG9w0BAQQFADCB0TELMAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4g Q2FwZTESMBAGA1UEBxMJQ2FwZSBUb3duMRowGAYDVQQKExFUaGF3dGUgQ29uc3VsdGluZzEo MCYGA1UECxMfQ2VydGlmaWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjEkMCIGA1UEAxMbVGhh d3RlIFBlcnNvbmFsIEZyZWVtYWlsIENBMSswKQYJKoZIhvcNAQkBFhxwZXJzb25hbC1mcmVl bWFpbEB0aGF3dGUuY29tMB4XDTAwMDgzMDAwMDAwMFoXDTAyMDgyOTIzNTk1OVowgZIxCzAJ BgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEP MA0GA1UEChMGVGhhd3RlMR0wGwYDVQQLExRDZXJ0aWZpY2F0ZSBTZXJ2aWNlczEoMCYGA1UE AxMfUGVyc29uYWwgRnJlZW1haWwgUlNBIDIwMDAuOC4zMDCBnzANBgkqhkiG9w0BAQEFAAOB jQAwgYkCgYEA3jMypmPHCSVFPtJueCdngcXaiBmClw7jRCmKYzUqbXA8+tyu9+50bzC8M5B/ +TRxoKNtmPHDT6Jl2w36S/HW3WGl+YXNVZo1Gp2Sdagnrthy+boC9tewkd4c6avgGAOofENC UFGHgzzwObSbVIoTh/+zm51JZgAtCYnslGvpoWkCAwEAAaNOMEwwKQYDVR0RBCIwIKQeMBwx GjAYBgNVBAMTEVByaXZhdGVMYWJlbDEtMjk3MBIGA1UdEwEB/wQIMAYBAf8CAQAwCwYDVR0P BAQDAgEGMA0GCSqGSIb3DQEBBAUAA4GBAHMbbyZli/8VNEtZYortRL5Jx+gNu4+5DWomKmKE H7iHY3QcbbfPGlORS+HN5jjZ7VD0Omw0kqzmkpxuwSMBwgmn70uuct0GZ/VQby5YuLYLwVBX tewc1+8XttWIm7eiiBrtOVs5fTT8tpYYJU1q9J3Fw5EvqZa4BTxS/N3pYgNIMYICpjCCAqIC AQEwgZowgZIxCzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcT CUNhcGUgVG93bjEPMA0GA1UEChMGVGhhd3RlMR0wGwYDVQQLExRDZXJ0aWZpY2F0ZSBTZXJ2 aWNlczEoMCYGA1UEAxMfUGVyc29uYWwgRnJlZW1haWwgUlNBIDIwMDAuOC4zMAIDBYFHMAkG BSsOAwIaBQCgggFhMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8X DTAyMDQwOTE3MDQ1NVowIwYJKoZIhvcNAQkEMRYEFHygaScg6Y4g7IYijrj2ocPuBWsuMFIG CSqGSIb3DQEJDzFFMEMwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMC AgFAMAcGBSsOAwIHMA0GCCqGSIb3DQMCAgEoMIGtBgsqhkiG9w0BCRACCzGBnaCBmjCBkjEL MAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UEBxMJQ2FwZSBUb3du MQ8wDQYDVQQKEwZUaGF3dGUxHTAbBgNVBAsTFENlcnRpZmljYXRlIFNlcnZpY2VzMSgwJgYD VQQDEx9QZXJzb25hbCBGcmVlbWFpbCBSU0EgMjAwMC44LjMwAgMFgUcwDQYJKoZIhvcNAQEB BQAEgYCDV2t0g+2RCgEmOkvW25C6hB+YQNava+x1dzvtgI9aMF6tR7fqwiTSZqQ+Jvve6G2a npyw/v4SWbCejZdMMRGlBdu6oqg+JUQWdZjTSj7ykSbrxfhtaGwqtUyvy2r8ZGFuEiApIjvA X/wdWEd+F59aD3ak4grXiD1u1qA4NngTHAAAAAAAAA== --------------ms020508050401080708070405-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3CB31F37.7020504>