Newbie - Will the following work (Voadfone 3G Natted IP)

spiritbreaker

Hi,

I have spoken to Sarian and they said any VPN Server supporting NAT-T and aggressive mode should respond to the NATted Vodafone IP.

hmm i ll test it tomorrow with 2 pfsense boxes (1 with adsl and 1 with umts). I never tested with aggressive mode.
But i think u cant use site to site on pfsense because u need an valid remote peer ip address otherwise phase 1 will always fail.

Im wondering looking at the logs i posted it seems the pfsense (WAN IP 192.168.1.16)is getting stuck going back out through the netgear router 192.168.1.1 even though DMZ is enabled on it. Is this correct??

U still need a real portforward. Be careful with netgear…look at documentation what "dmz on netgear" really means.

I was looking at getting a router that supports bridge mode which i can go straight into the pfsense and let it do the DHCP/NAT etc.

Search for pppoe passthrough on netgear.

The easyest way is to get the netgear in "modem mode". Activate pppoe passthrough mode and set up the pppoe connection on pfsense.

We dont need to analyse ipsec logs if we dont know if ur dmz setup works.

U posted logs…what is ur ipsec config on pfsense?

cya

frank451

Cheers spiritbreaker

Another log for you to look at :)

I have now got the sarian router VPN tunnel up but cant ping any remote clients etc. The log shows Phase 2 failed i have tried googling the error messages but no luck with any good answers.

Jun 19 17:30:13 racoon: [Unknown Gateway/Dynamic]: INFO: respond new phase 1 negotiation: 192.168.1.16[500]<=>212.183.128.9[11637]
Jun 19 17:30:13 racoon: INFO: begin Aggressive mode.
Jun 19 17:30:13 racoon: INFO: received Vendor ID: DPD
Jun 19 17:30:13 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-03
Jun 19 17:30:13 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-02
Jun 19 17:30:13 racoon: INFO: received Vendor ID: CISCO-UNITY
Jun 19 17:30:13 racoon: [212.183.128.9] INFO: Selected NAT-T version: draft-ietf-ipsec-nat-t-ike-02
Jun 19 17:30:13 racoon: INFO: Adding remote and local NAT-D payloads.
Jun 19 17:30:13 racoon: [212.183.128.9] INFO: Hashing 212.183.128.9[11637] with algo #1
Jun 19 17:30:13 racoon: [192.168.1.16] INFO: Hashing 192.168.1.16[500] with algo #1
Jun 19 17:30:14 racoon: [Unknown Gateway/Dynamic]: INFO: NAT-T: ports changed to: 212.183.128.9[22383]<->192.168.1.16[4500]
Jun 19 17:30:14 racoon: [192.168.1.16] INFO: Hashing 192.168.1.16[4500] with algo #1
Jun 19 17:30:14 racoon: INFO: NAT-D payload #0 doesn't match
Jun 19 17:30:14 racoon: [212.183.128.9] INFO: Hashing 212.183.128.9[22383] with algo #1
Jun 19 17:30:14 racoon: INFO: NAT-D payload #1 doesn't match
Jun 19 17:30:14 racoon: INFO: NAT detected: ME PEER
Jun 19 17:30:14 racoon: [Unknown Gateway/Dynamic]: INFO: ISAKMP-SA established 192.168.1.16[4500]-212.183.128.9[22383] spi:7f414c4ae95afd07:9c1ca4e1693af978
Jun 19 17:30:14 racoon: [Unknown Gateway/Dynamic]: INFO: respond new phase 2 negotiation: 192.168.1.16[4500]<=>212.183.128.9[22383]
Jun 19 17:30:14 racoon: [212.183.128.9] INFO: received INITIAL-CONTACT
Jun 19 17:30:14 racoon: [Unknown Gateway/Dynamic]: INFO: no policy found, try to generate the policy : 192.168.0.0/24[0] 192.168.5.0/24[0] proto=any dir=in
Jun 19 17:30:14 racoon: INFO: Adjusting my encmode UDP-Tunnel->Tunnel
Jun 19 17:30:14 racoon: INFO: Adjusting peer's encmode UDP-Tunnel(61443)->Tunnel(1)
Jun 19 17:30:34 racoon: ERROR: libipsec failed send update (No algorithm specified)
Jun 19 17:30:34 racoon: ERROR: pfkey update failed.
Jun 19 17:30:34 racoon: [212.183.128.9] ERROR: failed to process ph2 packet (side: 1, status: 8).
Jun 19 17:30:34 racoon: [212.183.128.9] ERROR: phase2 negotiation failed.
Jun 19 17:39:30 racoon: [212.183.128.9] ERROR: Wrong DPD sequence number (3743; last_ack=3743, seq=3743).

Thanks for your time

spiritbreaker

Hi,

last try.. plz post ur ipsec parameters. What remote peer u define on pfsense site?

Use 3DES / Sha1 for best compatibility in phase 2

cya

frank451

Sorry ;)

Screenshots attached

cheers

![pfsense ipsec overview.jpg](/public/imported_attachments/1/pfsense ipsec overview.jpg)
![pfsense ipsec overview.jpg_thumb](/public/imported_attachments/1/pfsense ipsec overview.jpg_thumb)
![pfsense phase2.jpg](/public/imported_attachments/1/pfsense phase2.jpg)
![pfsense phase2.jpg_thumb](/public/imported_attachments/1/pfsense phase2.jpg_thumb)
![pfsense Tunnel Page1.jpg](/public/imported_attachments/1/pfsense Tunnel Page1.jpg)
![pfsense Tunnel Page1.jpg_thumb](/public/imported_attachments/1/pfsense Tunnel Page1.jpg_thumb)
![pfsense tunnel page2.jpg](/public/imported_attachments/1/pfsense tunnel page2.jpg)
![pfsense tunnel page2.jpg_thumb](/public/imported_attachments/1/pfsense tunnel page2.jpg_thumb)

frank451

Sarian Screenshots

![sarian ike config.JPG](/public/imported_attachments/1/sarian ike config.JPG)
![sarian ike config.JPG_thumb](/public/imported_attachments/1/sarian ike config.JPG_thumb)
![sarian ipsec page1.JPG](/public/imported_attachments/1/sarian ipsec page1.JPG)
![sarian ipsec page1.JPG_thumb](/public/imported_attachments/1/sarian ipsec page1.JPG_thumb)
![sarian ipsec page2.JPG](/public/imported_attachments/1/sarian ipsec page2.JPG)
![sarian ipsec page2.JPG_thumb](/public/imported_attachments/1/sarian ipsec page2.JPG_thumb)
![sarian ipsec status.JPG](/public/imported_attachments/1/sarian ipsec status.JPG)
![sarian ipsec status.JPG_thumb](/public/imported_attachments/1/sarian ipsec status.JPG_thumb)

spiritbreaker

Hi,

u need to create a remote user on pfsense.

goto System -> usermanager

create user eg: sarian3g with ipsec key, effective previleges: assign to all groups with "USER - xxxxx"

pfsense + sarian switch to ESP

pfsense p1:
mode: aggressive
my identifier: distinguished name: pfsense
3DES/Sha1
lifetime: 28800
play with proposal checking option

pfsense p2:
mode tunnel
protocoll ESP
3DES/Sha1
lifetime 3600

goto advanced-> Miscellaneous -> uncheck " prefer oder sa" and check racoon debug mode
goto Status: System logs: Settings change number of logentries to >= 500

sarian:

change p1 and p2 parameters like pfsense
peer id: pfsense
our id: sarian3g
send our id as FQDN: yes
u need to define preshared key of sarian3g in ur config
change duration (kb) to 0
local subnet adress: 192.168.0.0/255.255.255.0
remote subnet: 192.168.5.0/255.255.255.0

cya

frank451

Thanks will give it all a try - i do have users already setup but wil double check there settings

thanks again

frank451

Hi Mate

done all your settings tunnel is coming up but still no pinging from either side of lan/wan port

logs below

un 19 22:03:57 racoon: [Unknown Gateway/Dynamic]: INFO: ISAKMP-SA deleted 192.168.1.16[4500]-212.183.128.40[6005] spi:b429387f02bef23c:7a681eab5df9de76
Jun 19 22:03:57 racoon: [Unknown Gateway/Dynamic]: INFO: NAT-T: ports changed to: 212.183.128.40[6005]<->192.168.1.16[4500]
Jun 19 22:03:57 racoon: [192.168.1.16] INFO: Hashing 192.168.1.16[4500] with algo #2
Jun 19 22:03:57 racoon: INFO: NAT-D payload #0 doesn't match
Jun 19 22:03:57 racoon: [212.183.128.40] INFO: Hashing 212.183.128.40[6005] with algo #2
Jun 19 22:03:57 racoon: INFO: NAT-D payload #1 doesn't match
Jun 19 22:03:57 racoon: INFO: NAT detected: ME PEER
Jun 19 22:03:57 racoon: [Unknown Gateway/Dynamic]: INFO: ISAKMP-SA established 192.168.1.16[4500]-212.183.128.40[6005] spi:f53921c972bc9d6e:ea90a881ec3f5a8c
Jun 19 22:03:57 racoon: [Unknown Gateway/Dynamic]: INFO: respond new phase 2 negotiation: 192.168.1.16[4500]<=>212.183.128.40[6005]
Jun 19 22:03:57 racoon: [212.183.128.40] INFO: received INITIAL-CONTACT
Jun 19 22:03:57 racoon: [Unknown Gateway/Dynamic]: INFO: no policy found, try to generate the policy : 192.168.0.0/24[0] 192.168.5.0/24[0] proto=any dir=in
Jun 19 22:03:57 racoon: INFO: Adjusting my encmode UDP-Tunnel->Tunnel
Jun 19 22:03:57 racoon: INFO: Adjusting peer's encmode UDP-Tunnel(61443)->Tunnel(1)
Jun 19 22:03:57 racoon: ERROR: libipsec failed send update (No algorithm specified)
Jun 19 22:03:57 racoon: ERROR: pfkey update failed.
Jun 19 22:03:57 racoon: [212.183.128.40] ERROR: failed to process ph2 packet (side: 1, status: 8).
Jun 19 22:03:57 racoon: [212.183.128.40] ERROR: phase2 negotiation failed.
Jun 19 22:03:58 racoon: [212.183.128.40] ERROR: delete payload with invalid doi:0.
Jun 19 22:03:58 racoon: INFO: purging ISAKMP-SA spi=f53921c972bc9d6e:ea90a881ec3f5a8c.
Jun 19 22:03:58 racoon: INFO: purged ISAKMP-SA spi=f53921c972bc9d6e:ea90a881ec3f5a8c.
Jun 19 22:03:59 racoon: [Unknown Gateway/Dynamic]: INFO: ISAKMP-SA deleted 192.168.1.16[4500]-212.183.128.40[6005] spi:f53921c972bc9d6e:ea90a881ec3f5a8c
Jun 19 22:05:18 racoon: [Unknown Gateway/Dynamic]: INFO: respond new phase 1 negotiation: 192.168.1.16[500]<=>212.183.128.40[24061]
Jun 19 22:05:18 racoon: INFO: begin Aggressive mode.
Jun 19 22:05:18 racoon: INFO: received Vendor ID: DPD
Jun 19 22:05:18 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-03
Jun 19 22:05:18 racoon: INFO: received Vendor ID: draft-ietf-ipsec-nat-t-ike-02
Jun 19 22:05:18 racoon: INFO: received Vendor ID: CISCO-UNITY
Jun 19 22:05:18 racoon: [212.183.128.40] INFO: Selected NAT-T version: draft-ietf-ipsec-nat-t-ike-02
Jun 19 22:05:18 racoon: INFO: Adding remote and local NAT-D payloads.
Jun 19 22:05:18 racoon: [212.183.128.40] INFO: Hashing 212.183.128.40[24061] with algo #2
Jun 19 22:05:18 racoon: [192.168.1.16] INFO: Hashing 192.168.1.16[500] with algo #2
Jun 19 22:05:20 racoon: [Unknown Gateway/Dynamic]: INFO: NAT-T: ports changed to: 212.183.128.40[60021]<->192.168.1.16[4500]
Jun 19 22:05:20 racoon: [192.168.1.16] INFO: Hashing 192.168.1.16[4500] with algo #2
Jun 19 22:05:20 racoon: INFO: NAT-D payload #0 doesn't match
Jun 19 22:05:20 racoon: [212.183.128.40] INFO: Hashing 212.183.128.40[60021] with algo #2
Jun 19 22:05:20 racoon: INFO: NAT-D payload #1 doesn't match
Jun 19 22:05:20 racoon: INFO: NAT detected: ME PEER
Jun 19 22:05:20 racoon: [Unknown Gateway/Dynamic]: INFO: ISAKMP-SA established 192.168.1.16[4500]-212.183.128.40[60021] spi:bb1ef0750c603600:79bf16d2d4d3203b
Jun 19 22:05:20 racoon: [Unknown Gateway/Dynamic]: INFO: respond new phase 2 negotiation: 192.168.1.16[4500]<=>212.183.128.40[60021]
Jun 19 22:05:20 racoon: [212.183.128.40] INFO: received INITIAL-CONTACT
Jun 19 22:05:20 racoon: [Unknown Gateway/Dynamic]: INFO: no policy found, try to generate the policy : 192.168.0.0/24[0] 192.168.5.0/24[0] proto=any dir=in
Jun 19 22:05:20 racoon: INFO: Adjusting my encmode UDP-Tunnel->Tunnel
Jun 19 22:05:20 racoon: INFO: Adjusting peer's encmode UDP-Tunnel(61443)->Tunnel(1)
Jun 19 22:05:21 racoon: ERROR: libipsec failed send update (No algorithm specified)
Jun 19 22:05:21 racoon: ERROR: pfkey update failed.
Jun 19 22:05:21 racoon: [212.183.128.40] ERROR: failed to process ph2 packet (side: 1, status: 8).
Jun 19 22:05:21 racoon: [212.183.128.40] ERROR: phase2 negotiation failed.

frank451

One other thing i should mention in the sarian ESP Encryption level s either off or null cant choose 3des etc

frank451

Update

Got 3des esp encryption enabled on the sarian, tunnel is up and works.

Only thing is i can ping and bring up devices on the sarian from the pfsense lan but cant connect/ping to any devices from the sarian lan to the pfsense lan

Any ideas??

Thanks

spiritbreaker

hi,

u create ipsec rule on pfsense?

Are there any blocking events on enc0?

cya

frank451

Hi SB

Thanks fro reply and help again.

Sorry might be a daft ? what is enc0? :-[

IPSec rules created subnets are PFS 192.168.5.0 sarian 192.168.0.0 should the gateways be set the same ie pfs 192.168.5.254 sarian 0.254 (this is now the ip of the sarian LAN port/config port)

Thanks again

spiritbreaker

Hi,

enc0 is the pfsense internal ipsec adapter. if incoming vpn traffig get blocked u see firewall blocking events on enc0 interface.

ur IPsec rule looks like:

Proto Source Port Destination Port Gateway Queue
* 192.168.5.0/24 * LAN net (192.168.0.0/24) * * none

Only thing is i can ping and bring up devices on the sarian from the pfsense lan but cant connect/ping to any devices from the sarian lan to the pfsense lan

Too much for me :D

is this right?

When tunnel comes up you..

sarian site

..cant ping pfsense lan ip
..cant ping device in pfsense network

pfsense site:

…can ping sarian lan ip
...can ping device in sarian network

plz post racoon ipsec-sa establishment.. is there something similar on sarian?

cya

frank451

apologies for being a pain ;D

Sorted it now - checked firewall logs pings being denied from sarian to pfsense added easy rule works a dream.

I'll get there in the end :)

thanks again

frank451

Hi Folks

Struggling again :)

Having got multiple mobile clients running with the sarian 3g routers, and i can see devices from sarian A to PFSense and vice versa same for sarian B and C. What i cant do is talk from Sarian A - B, A - C, C - B etc the routers are on 192.168.6.0, 7.0, and 8.0 pfsense is 192.168.5.0

Checked firewall logs nothing comes through when i try and ping sarian to sarian

Any help again appreciated

Cheers

spiritbreaker

Hi,

this is by design^^ u cant route IPSEC.

What u have to do is to create multiple phase 2 entrys on Pfsense and sarians.

Have a look at this example:

Each Sarian has a IPSEC Tunnel to ur central pfsense. Sarian A cant reach Sarian B network because there is no route.

Solution:
IPSEC Tunnel Pfsense <-> sarian A

Pfsense:
add phase 2 like this:

localnet: 192.168.7.0/24
remotenet: 192.168.6.0/24
use same encryption as ur first phase 2 entry.

Sarian A:

i dont know if sarian can have a second phase 2…but u can try to add a second tunnel with the same shared key...this should work.

localnet: 192.168.6.0/24
remotenet: 192.168.7.0/24

IPSEC Tunnel Pfsense <-> sarian B

Pfsense:
add phase 2 like this:

localnet: 192.168.6.0/24
remotenet: 192.168.7.0/24
use same encryption as ur first phase 2 entry.

Sarian B:

i dont know if sarian can have a second phase 2…but u can try to add a second tunnel with the same shared key...this should work.

localnet: 192.168.7.0/24
remotenet: 192.168.6.0/24

At the end create fireweallrules on pfsense to allow traffic between sarian A und B and vice versa...thats it.

If u have many sarians to connect each other u need to combine networks to minimize phase 2 entries otherwise there is much to configure.

good luck

cya