<div dir="ltr"><div>Hi guys</div><div><br></div><div><br></div><div>Bascialy there are two networks <a href="http://10.128.0.0/24">10.128.0.0/24</a> (my provider's network) and <a href="http://10.128.142.0/24">10.128.142.0/24</a> (my network built on OpenVPN) that I want to bridge via site-to-site VPN. Is it possible? If not, what other solutions may be used?</div>
<div><br></div><div>Finally I managed (with your help) to set up the site-to-site connection to my VPN provider. Ipsec status shows that tunnel is up:</div><div><br></div><div><br></div><div>--- tunnels status start ---</div>
<div><br></div><div> /etc/init.d/ipsec status</div><div>IPsec running - pluto pid: 797</div><div>pluto pid 797</div><div>1 tunnels up</div><div>some eroutes exist</div><div><br></div><div>---tunnels status end---</div><div>
<br></div><div><br></div><div>But traceroute 10.128.0.2 command dies after 30 hops:</div><div><br></div><div>traceroute to 10.128.0.2 (10.128.0.2), 30 hops max, 60 byte packets</div><div> 1 * * *</div><div><br></div><div>
<br></div><div><br></div><div>Openswan version: Openswan U2.6.38/K3.1.0-1.2-xen (netkey)</div><div><br></div><div>Thanks, Slava</div><div><br></div><div>Other logs/configs see bellow</div><div><br></div><div>------ifconfig start---------</div>
<div><br></div><div>eth0 Link encap:Ethernet HWaddr 12:e8:12:8c:1a:c0 </div><div> inet addr:100.100.100.100 Bcast:100.100.100.255 Mask:255.255.255.0</div><div> inet6 addr: fe80::10e8:12ff:fe8c:1ac0/64 Scope:Link</div>
<div> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1</div><div> RX packets:779249 errors:0 dropped:6352 overruns:0 frame:0</div><div> TX packets:72439 errors:0 dropped:0 overruns:0 carrier:0</div>
<div> collisions:0 txqueuelen:1000 </div><div> RX bytes:86789600 (82.7 MiB) TX bytes:41816455 (39.8 MiB)</div><div><br></div><div>lo Link encap:Local Loopback </div><div> inet addr:127.0.0.1 Mask:255.0.0.0</div>
<div> inet6 addr: ::1/128 Scope:Host</div><div> UP LOOPBACK RUNNING MTU:16436 Metric:1</div><div> RX packets:0 errors:0 dropped:0 overruns:0 frame:0</div><div> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0</div>
<div> collisions:0 txqueuelen:0 </div><div> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)</div><div><br></div><div>tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 </div><div>
inet addr:10.128.142.1 P-t-P:10.128.142.2 Mask:255.255.255.255</div><div> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1</div><div> RX packets:32031 errors:0 dropped:0 overruns:0 frame:0</div>
<div> TX packets:33785 errors:0 dropped:0 overruns:0 carrier:0</div><div> collisions:0 txqueuelen:100 </div><div> RX bytes:8637866 (8.2 MiB) TX bytes:28671489 (27.3 MiB)</div><div><br></div><div>
------ifconfig end------</div><div><br></div><div>----status start-----</div><div><br></div><div>ipsec auto --status</div><div>000 using kernel interface: netkey</div><div>000 interface lo/lo ::1</div><div>000 interface lo/lo 127.0.0.1</div>
<div>000 interface lo/lo 127.0.0.1</div><div>000 interface eth0/eth0 100.100.100.100</div><div>000 interface eth0/eth0 100.100.100.100</div><div>000 %myid = (none)</div><div>000 debug none</div><div>000 </div><div>000 virtual_private (%priv):</div>
<div>000 - allowed 6 subnets: <a href="http://10.0.0.0/8">10.0.0.0/8</a>, <a href="http://192.168.0.0/16">192.168.0.0/16</a>, <a href="http://172.16.0.0/12">172.16.0.0/12</a>, <a href="http://25.0.0.0/8">25.0.0.0/8</a>, fd00::/8, fe80::/10</div>
<div>000 - disallowed 0 subnets: </div><div>000 WARNING: Disallowed subnets in virtual_private= is empty. If you have </div><div>000 private address space in internal use, it should be excluded!</div><div>000 </div>
<div>000 algorithm ESP encrypt: id=2, name=ESP_DES, ivlen=8, keysizemin=64, keysizemax=64</div><div>000 algorithm ESP encrypt: id=3, name=ESP_3DES, ivlen=8, keysizemin=192, keysizemax=192</div><div>000 algorithm ESP encrypt: id=6, name=ESP_CAST, ivlen=8, keysizemin=40, keysizemax=128</div>
<div>000 algorithm ESP encrypt: id=7, name=ESP_BLOWFISH, ivlen=8, keysizemin=40, keysizemax=448</div><div>000 algorithm ESP encrypt: id=11, name=ESP_NULL, ivlen=0, keysizemin=0, keysizemax=0</div><div>000 algorithm ESP encrypt: id=12, name=ESP_AES, ivlen=8, keysizemin=128, keysizemax=256</div>
<div>000 algorithm ESP encrypt: id=13, name=ESP_AES_CTR, ivlen=8, keysizemin=160, keysizemax=288</div><div>000 algorithm ESP encrypt: id=14, name=ESP_AES_CCM_A, ivlen=8, keysizemin=128, keysizemax=256</div><div>000 algorithm ESP encrypt: id=15, name=ESP_AES_CCM_B, ivlen=8, keysizemin=128, keysizemax=256</div>
<div>000 algorithm ESP encrypt: id=16, name=ESP_AES_CCM_C, ivlen=8, keysizemin=128, keysizemax=256</div><div>000 algorithm ESP encrypt: id=18, name=ESP_AES_GCM_A, ivlen=8, keysizemin=128, keysizemax=256</div><div>000 algorithm ESP encrypt: id=19, name=ESP_AES_GCM_B, ivlen=8, keysizemin=128, keysizemax=256</div>
<div>000 algorithm ESP encrypt: id=20, name=ESP_AES_GCM_C, ivlen=8, keysizemin=128, keysizemax=256</div><div>000 algorithm ESP encrypt: id=22, name=ESP_CAMELLIA, ivlen=8, keysizemin=128, keysizemax=256</div><div>000 algorithm ESP encrypt: id=252, name=ESP_SERPENT, ivlen=8, keysizemin=128, keysizemax=256</div>
<div>000 algorithm ESP encrypt: id=253, name=ESP_TWOFISH, ivlen=8, keysizemin=128, keysizemax=256</div><div>000 algorithm ESP auth attr: id=1, name=AUTH_ALGORITHM_HMAC_MD5, keysizemin=128, keysizemax=128</div><div>000 algorithm ESP auth attr: id=2, name=AUTH_ALGORITHM_HMAC_SHA1, keysizemin=160, keysizemax=160</div>
<div>000 algorithm ESP auth attr: id=5, name=AUTH_ALGORITHM_HMAC_SHA2_256, keysizemin=256, keysizemax=256</div><div>000 algorithm ESP auth attr: id=6, name=AUTH_ALGORITHM_HMAC_SHA2_384, keysizemin=384, keysizemax=384</div>
<div>000 algorithm ESP auth attr: id=7, name=AUTH_ALGORITHM_HMAC_SHA2_512, keysizemin=512, keysizemax=512</div><div>000 algorithm ESP auth attr: id=8, name=AUTH_ALGORITHM_HMAC_RIPEMD, keysizemin=160, keysizemax=160</div><div>
000 algorithm ESP auth attr: id=9, name=AUTH_ALGORITHM_AES_CBC, keysizemin=128, keysizemax=128</div><div>000 algorithm ESP auth attr: id=251, name=AUTH_ALGORITHM_NULL_KAME, keysizemin=0, keysizemax=0</div><div>000 </div>
<div>000 algorithm IKE encrypt: id=0, name=(null), blocksize=16, keydeflen=131</div><div>000 algorithm IKE encrypt: id=5, name=OAKLEY_3DES_CBC, blocksize=8, keydeflen=192</div><div>000 algorithm IKE encrypt: id=7, name=OAKLEY_AES_CBC, blocksize=16, keydeflen=128</div>
<div>000 algorithm IKE hash: id=1, name=OAKLEY_MD5, hashsize=16</div><div>000 algorithm IKE hash: id=2, name=OAKLEY_SHA1, hashsize=20</div><div>000 algorithm IKE hash: id=4, name=OAKLEY_SHA2_256, hashsize=32</div><div>000 algorithm IKE hash: id=6, name=OAKLEY_SHA2_512, hashsize=64</div>
<div>000 algorithm IKE dh group: id=2, name=OAKLEY_GROUP_MODP1024, bits=1024</div><div>000 algorithm IKE dh group: id=5, name=OAKLEY_GROUP_MODP1536, bits=1536</div><div>000 algorithm IKE dh group: id=14, name=OAKLEY_GROUP_MODP2048, bits=2048</div>
<div>000 algorithm IKE dh group: id=15, name=OAKLEY_GROUP_MODP3072, bits=3072</div><div>000 algorithm IKE dh group: id=16, name=OAKLEY_GROUP_MODP4096, bits=4096</div><div>000 algorithm IKE dh group: id=17, name=OAKLEY_GROUP_MODP6144, bits=6144</div>
<div>000 algorithm IKE dh group: id=18, name=OAKLEY_GROUP_MODP8192, bits=8192</div><div>000 algorithm IKE dh group: id=22, name=OAKLEY_GROUP_DH22, bits=1024</div><div>000 algorithm IKE dh group: id=23, name=OAKLEY_GROUP_DH23, bits=2048</div>
<div>000 algorithm IKE dh group: id=24, name=OAKLEY_GROUP_DH24, bits=2048</div><div>000 </div><div>000 stats db_ops: {curr_cnt, total_cnt, maxsz} :context={0,4,36} trans={0,4,1536} attrs={0,4,2048} </div><div>000 </div>
<div>000 "telphin": <a href="http://10.128.142.0/24===100.100.100.100">10.128.142.0/24===100.100.100.100</a><100.100.100.100>…200.200.200.200<200.200.200.200>===<a href="http://10.128.0.0/24">10.128.0.0/24</a>; erouted; eroute owner: #8</div>
<div>000 "telphin": myip=unset; hisip=unset;</div><div>000 "telphin": ike_life: 3600s; ipsec_life: 28800s; rekey_margin: 540s; rekey_fuzz: 100%; keyingtries: 0 </div><div>000 "telphin": policy: PSK+ENCRYPT+TUNNEL+PFS+UP+IKEv2ALLOW+SAREFTRACK+lKOD+rKOD; prio: 24,24; interface: eth0; </div>
<div>000 "telphin": newest ISAKMP SA: #7; newest IPsec SA: #8; </div><div>000 "telphin": IKE algorithms wanted: 3DES_CBC(5)_000-SHA1(2)_000-MODP1536(5), 3DES_CBC(5)_000-SHA1(2)_000-MODP1024(2); flags=-strict</div>
<div>000 "telphin": IKE algorithms found: 3DES_CBC(5)_192-SHA1(2)_160-MODP1536(5)3DES_CBC(5)_192-SHA1(2)_160-MODP1024(2)</div><div>000 "telphin": IKE algorithm newest: 3DES_CBC_192-SHA1-MODP1024</div>
<div>000 "telphin": ESP algorithms wanted: 3DES(3)_000-SHA1(2)_000; flags=-strict</div><div>000 "telphin": ESP algorithms loaded: 3DES(3)_192-SHA1(2)_160</div><div>000 "telphin": ESP algorithm newest: 3DES_000-HMAC_SHA1; pfsgroup=<Phase1></div>
<div>000 </div><div>000 #8: "telphin":4500 STATE_QUICK_I2 (sent QI2, IPsec SA established); EVENT_SA_REPLACE in 26578s; newest IPSEC; eroute owner; isakmp#7; idle; import:admin initiate</div><div>000 #8: "telphin" <a href="mailto:esp.3b287452@200.200.200.200">esp.3b287452@200.200.200.200</a> <a href="mailto:esp.26159e22@100.100.100.100">esp.26159e22@100.100.100.100</a> <a href="mailto:tun.0@200.200.200.200">tun.0@200.200.200.200</a> <a href="mailto:tun.0@100.100.100.100">tun.0@100.100.100.100</a> ref=0 refhim=4294901761</div>
<div>000 #7: "telphin":4500 STATE_MAIN_I4 (ISAKMP SA established); EVENT_SA_REPLACE in 1660s; newest ISAKMP; lastdpd=-1s(seq in:0 out:0); idle; import:admin initiate</div><div>000 </div><div><br></div><div>------- status end -----</div>
<div><br></div><div>--- verify start -----</div><div><br></div><div>ipsec verify</div><div>Checking your system to see if IPsec got installed and started correctly:</div><div>Version check and ipsec on-path <span class="" style="white-space:pre"> </span>[OK]</div>
<div>Linux Openswan U2.6.38/K3.1.0-1.2-xen (netkey)</div><div>Checking for IPsec support in kernel <span class="" style="white-space:pre"> </span>[OK]</div><div> SAref kernel support <span class="" style="white-space:pre"> </span>[N/A]</div>
<div> NETKEY: Testing XFRM related proc values <span class="" style="white-space:pre"> </span>[OK]</div><div><span class="" style="white-space:pre"> </span>[OK]</div><div><span class="" style="white-space:pre"> </span>[OK]</div>
<div>Checking that pluto is running <span class="" style="white-space:pre"> </span>[OK]</div><div> Pluto listening for IKE on udp 500 <span class="" style="white-space:pre"> </span>[OK]</div>
<div> Pluto listening for NAT-T on udp 4500 <span class="" style="white-space:pre"> </span>[OK]</div><div>Two or more interfaces found, checking IP forwarding <span class="" style="white-space:pre"> </span>[FAILED]</div>
<div>Checking NAT and MASQUERADEing <span class="" style="white-space:pre"> </span>[OK]</div><div>Checking for 'ip' command <span class="" style="white-space:pre"> </span>[OK]</div>
<div>Checking /bin/sh is not /bin/dash <span class="" style="white-space:pre"> </span>[WARNING]</div><div>Checking for 'iptables' command <span class="" style="white-space:pre"> </span>[OK]</div>
<div>Opportunistic Encryption Support <span class="" style="white-space:pre"> </span>[DISABLED]</div><div><br></div><div># /etc/ipsec.conf - Openswan IPsec configuration file</div><div><br></div>
<div># This file: /usr/share/doc/openswan/ipsec.conf-sample</div><div>#</div><div># Manual: ipsec.conf.5</div><div><br></div><div><br></div><div>version<span class="" style="white-space:pre"> </span>2.0<span class="" style="white-space:pre"> </span># conforms to second version of ipsec.conf specification</div>
<div><br></div><div><br></div><div>--- verify end -----</div><div><br></div><div>---- config start ---</div><div><br></div><div># basic configuration</div><div>config setup</div><div> interfaces="%defaultroute"</div>
<div><span class="" style="white-space:pre"> </span># Do not set debug options to debug configuration issues!</div><div><span class="" style="white-space:pre"> </span># plutodebug / klipsdebug = "all", "none" or a combation from below:</div>
<div><span class="" style="white-space:pre"> </span># "raw crypt parsing emitting control klips pfkey natt x509 dpd private"</div><div><span class="" style="white-space:pre"> </span># eg:</div><div><span class="" style="white-space:pre"> </span># plutodebug="control parsing"</div>
<div><span class="" style="white-space:pre"> </span># Again: only enable plutodebug or klipsdebug when asked by a developer</div><div><span class="" style="white-space:pre"> </span>#</div><div><span class="" style="white-space:pre"> </span># enable to get logs per-peer</div>
<div><span class="" style="white-space:pre"> </span># plutoopts="--perpeerlog"</div><div><span class="" style="white-space:pre"> </span>#</div><div><span class="" style="white-space:pre"> </span># Enable core dumps (might require system changes, like ulimit -C)</div>
<div><span class="" style="white-space:pre"> </span># This is required for abrtd to work properly</div><div><span class="" style="white-space:pre"> </span># Note: incorrect SElinux policies might prevent pluto writing the core</div>
<div><span class="" style="white-space:pre"> </span>dumpdir=/var/run/pluto/</div><div><span class="" style="white-space:pre"> </span>#</div><div><span class="" style="white-space:pre"> </span># NAT-TRAVERSAL support, see README.NAT-Traversal</div>
<div><span class="" style="white-space:pre"> </span>nat_traversal=yes</div><div><span class="" style="white-space:pre"> </span># exclude networks used on server side by adding %v4:!a.b.c.0/24</div><div><span class="" style="white-space:pre"> </span># It seems that T-Mobile in the US and Rogers/Fido in Canada are</div>
<div><span class="" style="white-space:pre"> </span># using 25/8 as "private" address space on their 3G network.</div><div><span class="" style="white-space:pre"> </span># This range has not been announced via BGP (at least upto 2010-12-21)</div>
<div><span class="" style="white-space:pre"> </span>virtual_private=%v4:<a href="http://10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:25.0.0.0/8,%v6:fd00::/8,%v6:fe80::/10">10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v4:25.0.0.0/8,%v6:fd00::/8,%v6:fe80::/10</a></div>
<div><span class="" style="white-space:pre"> </span># OE is now off by default. Uncomment and change to on, to enable.</div><div><span class="" style="white-space:pre"> </span>oe=off</div><div><span class="" style="white-space:pre"> </span># which IPsec stack to use. auto will try netkey, then klips then mast</div>
<div><span class="" style="white-space:pre"> </span>protostack=netkey</div><div><span class="" style="white-space:pre"> </span># Use this to log to a file, or disable logging on embedded systems (like openwrt)</div><div><span class="" style="white-space:pre"> </span>#plutostderrlog=/dev/null</div>
<div> </div><div><br></div><div># Add connections here</div><div><br></div><div># sample VPN connection</div><div># for more examples, see /etc/ipsec.d/examples/</div><div>#conn sample</div><div>#<span class="" style="white-space:pre"> </span># Left security gateway, subnet behind it, nexthop toward right.</div>
<div>#<span class="" style="white-space:pre"> </span>left=10.0.0.1</div><div>#<span class="" style="white-space:pre"> </span>leftsubnet=<a href="http://172.16.0.0/24">172.16.0.0/24</a></div><div>#<span class="" style="white-space:pre"> </span>leftnexthop=10.22.33.44</div>
<div>#<span class="" style="white-space:pre"> </span># Right security gateway, subnet behind it, nexthop toward left.</div><div>#<span class="" style="white-space:pre"> </span>right=10.12.12.1</div><div>#<span class="" style="white-space:pre"> </span>rightsubnet=<a href="http://192.168.0.0/24">192.168.0.0/24</a></div>
<div>#<span class="" style="white-space:pre"> </span>rightnexthop=10.101.102.103</div><div>#<span class="" style="white-space:pre"> </span># To authorize this connection, but not actually start it, </div><div>#<span class="" style="white-space:pre"> </span># at startup, uncomment this.</div>
<div>#<span class="" style="white-space:pre"> </span>#auto=add</div><div><br></div><div><br></div><div>conn telphin</div><div> left=100.100.100.100 # left for local</div><div> leftsubnet=<a href="http://10.128.142.0/24">10.128.142.0/24</a></div>
<div> #leftnexthop=10.128.142.0</div><div> right=200.200.200.200 # right for remote</div><div> rightsubnet=<a href="http://10.128.0.0/24">10.128.0.0/24</a></div><div> #rightnexthop=10.128.0.0</div>
<div> type=tunnel</div><div> authby=secret</div><div> auto=start</div><div> auth=esp</div><div> keyexchange=ike</div><div> ike=3des-sha1</div>
<div> esp=3des-sha1</div><div> pfs=yes</div><div> forceencaps=yes</div><div><br></div><div>---- config end ---</div></div>