1 # Id: racoon.conf.sample-natt,v 1.5 2005/12/13 16:41:07 vanhu Exp
2 # Contributed by: Michal Ludvig <mludvig@suse.cz>, SUSE Labs
4 # This file can be used as a template for NAT-Traversal setups.
5 # Only NAT-T related options are explained here, refer to other
6 # sample files and manual pages for details about the rest.
8 path include "/etc/racoon";
9 path certificate "/etc/racoon/cert";
11 # Define addresses and ports where racoon will listen for an incoming
12 # traffic. Don't forget to open these ports on your firewall!
15 # First define an address where racoon will listen
16 # for "normal" IKE traffic. IANA allocated port 500.
17 isakmp 172.16.0.1[500];
19 # To use NAT-T you must also open port 4500 of
20 # the same address so that peers can do 'Port floating'.
21 # The same port will also be used for the UDP-Encapsulated
23 isakmp_natt 172.16.0.1[4500];
29 # To keep the NAT-mappings on your NAT gateway, there must be
30 # traffic between the peers. Normally the UDP-Encap traffic
31 # (i.e. the real data transported over the tunnel) would be
32 # enough, but to be safe racoon will send a short
33 # "Keep-alive packet" every few seconds to every peer with
34 # whom it does NAT-Traversal.
35 # The default is 20s. Set it to 0s to disable sending completely.
36 natt_keepalive 10 sec;
39 # To trigger the SA negotiation there must be an appropriate
40 # policy in the kernel SPD. For example for traffic between
41 # networks 192.168.0.0/24 and 192.168.1.0/24 with gateways
42 # 172.16.0.1 and 172.16.1.1, where the first gateway is behind
43 # a NAT which translates its address to 172.16.1.3, you need the
45 # On 172.16.0.1 (e.g. behind the NAT):
46 # spdadd 192.168.0.0/24 192.168.1.0/24 any -P out ipsec \
47 # esp/tunnel/172.16.0.1-172.16.1.1/require;
48 # spdadd 192.168.1.0/24 192.168.0.0/24 any -P in ipsec \
49 # esp/tunnel/172.16.1.1-172.16.0.1/require;
50 # On the other side (172.16.1.1) either use a "generate_policy on"
51 # statement in the remote block, or in case that you know
52 # the translated address, use the following policy:
53 # spdadd 192.168.1.0/24 192.168.0.0/24 any -P out ipsec \
54 # esp/tunnel/172.16.1.1-172.16.1.3/require;
55 # spdadd 192.168.0.0/24 192.168.1.0/24 any -P in ipsec \
56 # esp/tunnel/172.16.1.3-172.16.1.1/require;
58 # Phase 1 configuration (for ISAKMP SA)
61 # NAT-T is supported with all exchange_modes.
62 exchange_mode main,base,aggressive;
64 # With NAT-T you shouldn't use PSK. Let's go on with certs.
66 certificate_type x509 "your-host.cert.pem" "your-host.key.pem";
68 # This is the main switch that enables NAT-T.
69 # Possible values are:
70 # off - NAT-T support is disabled, i.e. neither offered,
71 # nor accepted. This is the default.
72 # on - normal NAT-T support, i.e. if NAT is detected
73 # along the way, NAT-T is used.
74 # force - if NAT-T is supported by both peers, it is used
75 # regardless of whether there is a NAT gateway between them
76 # or not. This is useful for traversing some firewalls.
80 authentication_method rsasig;
81 encryption_algorithm 3des;
86 proposal_check strict;
89 # Phase 2 proposal (for IPsec SA)
93 lifetime time 12 hour;
94 encryption_algorithm 3des, rijndael;
95 authentication_algorithm hmac_sha1;
96 compression_algorithm deflate;