[Openswan Users] OPenswan behind 1to1 nat.
nemus at grayhatlabs.com
nemus at grayhatlabs.com
Fri Mar 23 16:27:59 EDT 2012
I am trying to do the following senerio.
(OpenSWAN router) (cisco ASA) 1to1 nat (Centos OpenSWAN)
10.x.x.0/24---5.x.x.2 <-------> 9.0.0.1(asa) <---> 9.0.0.2 (1to1 nat
to 192.x.x.1) -----> 192.x.x.1 (192.x.x.x/24)
I want to route 10.x.x.0 traffic to 192.x.x.0
I am not sure how to do routing
I have all traffic for 9.0.0.2 forwarded directly to the 192.x.x.1
I don't have direct access ot the cisco asa and I cannot setup the ipsec
tunnel on it there because of the role the cisco ASA plays
cat /etc/ipsec.conf
# /etc/ipsec.conf - Openswan IPsec configuration file
#
# Manual: ipsec.conf.5
#
# Please place your own config files in /etc/ipsec.d/ ending in .conf
version 2.0 # conforms to second version of ipsec.conf specification
# basic configuration
config setup
# Debug-logging controls: "none" for (almost) none, "all" for lots.
# klipsdebug=none
plutodebug="control parsing"
# For Red Hat Enterprise Linux and Fedora, leave protostack=netkey
protostack=netkey
nat_traversal=yes
virtual_private=%v4:192.x.x.0/24,%v4:10.x.x.0/24
oe=off
# Enable this if you see "failed to find any available worker"
nhelpers=0
#You may put your configuration (.conf) file in the "/etc/ipsec.d/" and
uncomment this.
#include /etc/ipsec.d/*.conf
#
conn test
type=tunnel
authby = secret
left=50.x.x.2
leftnexthop=%defaultroute
leftsubnet = 192.x.x.0/24
rightnexthop=50.x.x.2
right=9.x.x.2
rightsubnet=10.x.x.0/24
esp = 3des-md5
keyexchange = ike
pfs = no
auto = start
lifetime=28800s
ipsec auto --status
000 using kernel interface: netkey
000 interface lo/lo ::1
000 interface lo/lo 127.0.0.1
000 interface lo/lo 127.0.0.1
000 interface eth1/eth1 192.x.x.x
000 interface eth1/eth1 192.x.x.x
000 %myid = (none)
000 debug parsing+control
000
000 virtual_private (%priv):
000 - allowed 2 subnets: 192.x.x.0/24, 10.x.x.0/24
000 - disallowed 0 subnets:
000 WARNING: Disallowed subnets in virtual_private= is empty. If you have
000 private address space in internal use, it should be excluded!
000
000 algorithm ESP encrypt: id=2, name=ESP_DES, ivlen=8, keysizemin=64,
keysizemax=64
000 algorithm ESP encrypt: id=3, name=ESP_3DES, ivlen=8, keysizemin=192,
keysizemax=192
000 algorithm ESP encrypt: id=6, name=ESP_CAST, ivlen=8, keysizemin=40,
keysizemax=128
000 algorithm ESP encrypt: id=7, name=ESP_BLOWFISH, ivlen=8,
keysizemin=40, keysizemax=448
000 algorithm ESP encrypt: id=11, name=ESP_NULL, ivlen=0, keysizemin=0,
keysizemax=0
000 algorithm ESP encrypt: id=12, name=ESP_AES, ivlen=8, keysizemin=128,
keysizemax=256
000 algorithm ESP encrypt: id=13, name=ESP_AES_CTR, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=14, name=ESP_AES_CCM_A, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=15, name=ESP_AES_CCM_B, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=16, name=ESP_AES_CCM_C, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=18, name=ESP_AES_GCM_A, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=19, name=ESP_AES_GCM_B, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=20, name=ESP_AES_GCM_C, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=22, name=ESP_CAMELLIA, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=252, name=ESP_SERPENT, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP encrypt: id=253, name=ESP_TWOFISH, ivlen=8,
keysizemin=128, keysizemax=256
000 algorithm ESP auth attr: id=1, name=AUTH_ALGORITHM_HMAC_MD5,
keysizemin=128, keysizemax=128
000 algorithm ESP auth attr: id=2, name=AUTH_ALGORITHM_HMAC_SHA1,
keysizemin=160, keysizemax=160
000 algorithm ESP auth attr: id=5, name=AUTH_ALGORITHM_HMAC_SHA2_256,
keysizemin=256, keysizemax=256
000 algorithm ESP auth attr: id=8, name=AUTH_ALGORITHM_HMAC_RIPEMD,
keysizemin=160, keysizemax=160
000 algorithm ESP auth attr: id=9, name=AUTH_ALGORITHM_AES_CBC,
keysizemin=128, keysizemax=128
000 algorithm ESP auth attr: id=251, name=(null), keysizemin=0, keysizemax=0
000
000 algorithm IKE encrypt: id=0, name=(null), blocksize=16, keydeflen=131
000 algorithm IKE encrypt: id=3, name=OAKLEY_BLOWFISH_CBC, blocksize=8,
keydeflen=128
000 algorithm IKE encrypt: id=5, name=OAKLEY_3DES_CBC, blocksize=8,
keydeflen=192
000 algorithm IKE encrypt: id=7, name=OAKLEY_AES_CBC, blocksize=16,
keydeflen=128
000 algorithm IKE encrypt: id=65004, name=OAKLEY_SERPENT_CBC,
blocksize=16, keydeflen=128
000 algorithm IKE encrypt: id=65005, name=OAKLEY_TWOFISH_CBC,
blocksize=16, keydeflen=128
000 algorithm IKE encrypt: id=65289, name=OAKLEY_TWOFISH_CBC_SSH,
blocksize=16, keydeflen=128
000 algorithm IKE hash: id=1, name=OAKLEY_MD5, hashsize=16
000 algorithm IKE hash: id=2, name=OAKLEY_SHA1, hashsize=20
000 algorithm IKE hash: id=4, name=OAKLEY_SHA2_256, hashsize=32
000 algorithm IKE hash: id=6, name=OAKLEY_SHA2_512, hashsize=64
000 algorithm IKE dh group: id=2, name=OAKLEY_GROUP_MODP1024, bits=1024
000 algorithm IKE dh group: id=5, name=OAKLEY_GROUP_MODP1536, bits=1536
000 algorithm IKE dh group: id=14, name=OAKLEY_GROUP_MODP2048, bits=2048
000 algorithm IKE dh group: id=15, name=OAKLEY_GROUP_MODP3072, bits=3072
000 algorithm IKE dh group: id=16, name=OAKLEY_GROUP_MODP4096, bits=4096
000 algorithm IKE dh group: id=17, name=OAKLEY_GROUP_MODP6144, bits=6144
000 algorithm IKE dh group: id=18, name=OAKLEY_GROUP_MODP8192, bits=8192
000 algorithm IKE dh group: id=22, name=OAKLEY_GROUP_DH22, bits=1024
000 algorithm IKE dh group: id=23, name=OAKLEY_GROUP_DH23, bits=2048
000 algorithm IKE dh group: id=24, name=OAKLEY_GROUP_DH24, bits=2048
000
000 stats db_ops: {curr_cnt, total_cnt, maxsz} :context={0,0,0}
trans={0,0,0} attrs={0,0,0}
000
000 "test":
192.x.x.0/24===5.x.x.2<5.x.x.2>[+S=C]---192.x.x.1...9.x.x.2<9.x.x.2>[+S=C]===10.x.x.0/24;
unrouted; eroute owner: #0
000 "test": myip=unset; hisip=unset;
000 "test": ike_life: 3600s; ipsec_life: 28800s; rekey_margin: 540s;
rekey_fuzz: 100%; keyingtries: 0
000 "test": policy: PSK+ENCRYPT+TUNNEL+IKEv2ALLOW+SAREFTRACK+lKOD+rKOD;
prio: 24,24; interface: ;
000 "test": newest ISAKMP SA: #0; newest IPsec SA: #0;
000 "test": ESP algorithms wanted: 3DES(3)_000-MD5(1)_000; flags=-strict
000 "test": ESP algorithms loaded: 3DES(3)_192-MD5(1)_128
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