The IPSec VPN and routing

Hello

I was polishing my PSAB on since I am currently in a job where I can't touch a lot of this stuff. By a laboratory set up a site to IPSec VPN between two routers IOS.

For example:

https://www.Cisco.com/en/us/products/ps9422/products_configuration_example09186a0080ba1d0a.shtml

The routers must specify how to route to the protected network. Although I guess they could just use a default route to 172.17.1.2 as well.

for example IP road 10.10.10.0 255.255.255.0 172.17.1.2

172.17.1.2 won't have the slightest clue as to how to route for 10.10.10.0

Even in an example with a tunnel between the ASA and the router IOS ASA failed to indicate a direct route to the subnet protected from 10.20.10.0, but it must still have a default route configuration. (https://www.cisco.com/en/US/products/ps5855/products_configuration_example09186a0080a9a7a3.shtml#CLI)

So it is basically saying, to reach the protected subnet to resolve the next hop on a device that has no idea where this subnet is anyway. Shouldn't all the peer IP-based routing, and not on a subnet that routers between the two should have no idea they exist?

The main hypothesis that I have here is that the protected subnets are not accessible unless the VPN tunnel is up. Most of my experience of the VPN site-to-site is with PIX / ASA, and I've never had to specify a route towards the protected subnet (for example 172.16.228.0). I guess he just used his default gateway that has an Internet IP belonging to the ISP. However the ISP has no idea where is 172.16.228.0.

Edit: I found a thread, do not report with Cisco but IPSec in general, this seems to be the question in case I don't have a lot of sense:

http://comments.Gmane.org/Gmane.OS.OpenBSD.misc/192986

He still does not seem logical to me. If I have a tunnel linking the two class C networks by internet, the only routers having knowledge of these networks are the two counterparts. Why a course should be (static, dynamic, default etc,) which seems to send traffic to a device that do not know where is the class C networks? Although I have to take in my example with the 172.17.228.0 my ASA was not actually sends out packets to my ISP gateway with 172.17.228.0 in them.

The purpose of the trail is * not * to send traffic to your next jump. You are right that the next hop router has no idea what to do with this package. This way is important for the local operation. The router must find the interface of output for the package. 'S done it with the road to the next-hop-router. If you remember that the road to your peer IPSec, your router must do a recursive search routing. After the outging interface is found, traffic is sent to this interface, the card encryption on this interface jumps and protects your traffic that is routed to your IPSec peer.

--
Don't stop once you have upgraded your network! Improve the world by lending money to low-income workers:
http://www.Kiva.org/invitedBy/karsteni

Tags: Cisco Security

Similar Questions

IPsec vpn and Anyconnect is denied by the ACL (unknown)

I am trying to configure IPsec VPN and I used the wizard of asdm (asdm version 8.4, ASA version 8.4). At the moment he is not in production and is in a test environment. Whenever I try to VPN in I get an error on the asdm syslog saying "TCP access denied by ACL from x.x.x.122 to outside:x.x.x.225/443. So I allowed all VPN traffic to this IP address that is currently the IP address as the external interface. My acl is as follows:

outside_in list extended access permit tcp any interface outside eq https

outside_in list extended access permit tcp any host x.x.x.225 eq https

Access-group outside_in in external interface

Yet, I still get the same exact error. The strange thing about this error is that it does not give me the specific ACL that denies access. There is no other access lists that could possibly block this traffic.

No idea what could be the cause this problem because I am confused.

So far, if you have configured following does not require an acl.
```
ciscoasa(config)#webvpn
ciscoasa(config-webvpn)#enable outside
ciscoasa(config-webvpn)#svc enable
You can post configuration here someone can have a look on that.
Thanks
Ajay
```

Problems connecting to help connect any and the Ipsec VPN Client

I have problems connecting with the VPN client connect no matter what. I can connect with the Ipsec VPN client in Windows 7 32 bit.

Here is my latest config running.

Thank you for taking the time to read this.

passwd encrypted W/KqlBn3sSTvaD0T

no names

name 192.168.1.117 kylewooddesk kyle description

!

interface Vlan1

nameif inside

security-level 100

IP 192.168.1.1 255.255.255.0

!

interface Vlan2

nameif outside

security-level 0

IP address dhcp setroute

!

interface Ethernet0/0

switchport access vlan 2

!

interface Ethernet0/1

!

interface Ethernet0/2

!

interface Ethernet0/3

!

interface Ethernet0/4

!

interface Ethernet0/5

!

interface Ethernet0/6

!

interface Ethernet0/7

!

boot system Disk0: / asa822 - k8.bin

passive FTP mode

DNS lookup field inside

DNS domain-lookup outside

DNS server-group DefaultDNS

domain wood.local

permit same-security-traffic intra-interface

object-group service rdp tcp

access rdp Description

EQ port 3389 object

outside_access_in list extended access permit tcp any interface outside eq 3389

outside_access_in list extended access permit tcp any interface outside eq 8080

outside_access_in list extended access permit tcp any interface outside eq 3334

outside_access_in to access extended list ip 192.168.5.0 allow 255.255.255.240 192.168.1.0 255.255.255.0

woodgroup_splitTunnelAcl list standard access allowed host 192.168.1.117

inside_nat0_outbound to access ip 192.168.1.0 scope list allow 255.255.255.0 192.168.5.0 255.255.255.240

outside_access_in_1 list extended access permit tcp any host 192.168.1.117 eq 3389

woodgroup_splitTunnelAcl_1 list standard access allowed 192.168.1.0 255.255.255.0

inside_nat0_outbound_1 to access ip 192.168.1.0 scope list allow 255.255.255.0 192.168.5.0 255.255.255.240

inside_nat0_outbound_1 to access extended list ip 192.168.5.0 allow 255.255.255.240 all

inside_test list extended access permit icmp any host 192.168.1.117

no pager

Enable logging

timestamp of the record

asdm of logging of information

Debugging trace record

Within 1500 MTU

Outside 1500 MTU

mask pool local Kyle 192.168.5.1 - 192.168.5.10 IP 255.255.255.0

IP local pool vpnpool 192.168.1.220 - 192.168.1.230

ICMP unreachable rate-limit 1 burst-size 1

ASDM image disk0: / asdm - 631.bin

don't allow no asdm history

ARP timeout 14400

Global (inside) 1 interface

Global 1 interface (outside)

NAT (inside) 0-list of access inside_nat0_outbound_1

NAT (inside) 1 0.0.0.0 0.0.0.0

public static interface 3389 (indoor, outdoor) 192.168.1.117 tcp 3389 netmask 255.255.255.255 dns

public static tcp (indoor, outdoor) interface 8080 192.168.1.117 8080 netmask 255.255.255.255

public static tcp (indoor, outdoor) interface 3334 192.168.1.86 3334 netmask 255.255.255.255

static (inside, upside down) 75.65.238.40 192.168.1.117 netmask 255.255.255.255

Access-group outside_access_in in interface outside

Timeout xlate 03:00

Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02

Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00

Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00

Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute

timeout tcp-proxy-reassembly 0:01:00

dynamic-access-policy-registration DfltAccessPolicy

WebVPN

the files enable exploration

activate the entry in the file

enable http proxy

Enable URL-entry

SVC request no svc default

AAA authentication http LOCAL console

Enable http server

http 192.168.1.0 255.255.255.0 inside

No snmp server location

No snmp Server contact

Server enable SNMP traps snmp authentication linkup, linkdown cold start

Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac

Crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac

Crypto ipsec transform-set ESP-DES-SHA esp - esp-sha-hmac

Crypto ipsec transform-set ESP-DES-MD5 esp - esp-md5-hmac

Crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac

Crypto ipsec transform-set ESP-3DES-MD5-esp-3des esp-md5-hmac

Crypto ipsec transform-set ESP-AES-256-SHA 256 - aes - esp esp-sha-hmac

Crypto ipsec transform-set ESP-AES-128-SHA aes - esp esp-sha-hmac

Crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac

Crypto ipsec transform-set ESP-AES-128-MD5-esp - aes esp-md5-hmac

life crypto ipsec security association seconds 28800

Crypto ipsec kilobytes of life - safety 4608000 association

crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 pfs Group1 set

Crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 value transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5

outside_map card crypto 65535-isakmp dynamic ipsec SYSTEM_DEFAULT_CRYPTO_MAP

outside_map interface card crypto outside

crypto isakmp identity address

crypto ISAKMP allow outside

crypto ISAKMP policy 10

preshared authentication

3des encryption

sha hash

Group 2

life 86400

Telnet 192.168.1.0 255.255.255.0 inside

Telnet timeout 5

SSH timeout 5

Console timeout 0

dhcpd dns 8.8.8.8 8.8.4.4

dhcpd lease 3000

!

dhcpd address 192.168.1.100 - 192.168.1.130 inside

dhcpd allow inside

!

a basic threat threat detection

host of statistical threat detection

Statistics-list of access threat detection

no statistical threat detection tcp-interception

WebVPN

allow outside

SVC disk0:/anyconnect-win-2.4.1012-k9.pkg 1 image

enable SVC

internal sslwood group policy

attributes of the strategy of group sslwood

VPN-tunnel-Protocol svc webvpn

WebVPN

list of URLS no

internal group woodgroup strategy

woodgroup group policy attributes

value of server DNS 8.8.8.8 8.8.4.4

Protocol-tunnel-VPN IPSec

Split-tunnel-policy tunnelspecified

value of Split-tunnel-network-list woodgroup_splitTunnelAcl_1

mrkylewood encrypted Q4339wmn1ourxj9X privilege 15 password username

username mrkylewood attributes

VPN-group-policy sslwood

VPN - connections 3

VPN-tunnel-Protocol svc webvpn

value of group-lock sslwood

WebVPN

SVC request no webvpn default

tunnel-group woodgroup type remote access

tunnel-group woodgroup General attributes

address pool Kyle

Group Policy - by default-woodgroup

tunnel-group woodgroup ipsec-attributes

pre-shared key *.

type tunnel-group sslwood remote access

tunnel-group sslwood General-attributes

address pool Kyle

authentication-server-group (inside) LOCAL

authentication-server-group (outside LOCAL)

Group Policy - by default-sslwood

!

class-map inspection_default

match default-inspection-traffic

!

!

type of policy-card inspect dns preset_dns_map

parameters

message-length maximum 512

Policy-map global_policy

class inspection_default

inspect the preset_dns_map dns

inspect the ftp

inspect h323 h225

inspect the h323 ras

inspect the netbios

inspect the rsh

inspect the rtsp

inspect the skinny

inspect esmtp

inspect sqlnet

inspect sunrpc

inspect the tftp

inspect the sip

inspect xdmcp

Review the ip options

type of policy-card inspect dns MY_DNS_INSPECT_MAP

parameters

!

global service-policy global_policy

context of prompt hostname

call-home

Profile of CiscoTAC-1

no active account

http https://tools.cisco.com/its/service/oddce/services/DDCEService destination address

email address of destination [email protected] / * /

http https://tools.cisco.com/its/service/...es/DDCEService destination address

destination-mode http transport

Subscribe to alert-group diagnosis

Subscribe to alert-group environment

Subscribe to alert-group monthly periodic inventory

monthly periodicals to subscribe to alert-group configuration

daily periodic subscribe to alert-group telemetry

Cryptochecksum:6fa8db79bcf695080cbdc1159b409360

: end

asawood (config) #.

You also need to add the following:

WebVPN

tunnel-group-list activate

output

tunnel-group sslwood webvpn-attributes

activation of the Group sslwood alias

Let us know if it works.

Cisco ASA5520 facing ISP with private IP address. How to get the IPSec VPN through the internet?

/ * Style definitions * / table. MsoNormalTable {mso-style-name : « Table Normal » ; mso-tstyle-rowband-taille : 0 ; mso-tstyle-colband-taille : 0 ; mso-style-noshow:yes ; mso-style-priorité : 99 ; mso-style-qformat:yes ; mso-style-parent : » « ;" mso-rembourrage-alt : 0 à 5.4pt 0 à 5.4pt ; mso-para-marge-top : 0 ; mso-para-marge-droit : 0 ; mso-para-marge-bas : 10.0pt ; mso-para-marge-left : 0 ; ligne-hauteur : 115 % ; mso-pagination : widow-orphelin ; police-taille : 11.0pt ; famille de police : « Calibri », « sans-serif » ; mso-ascii-font-family : Calibri ; mso-ascii-theme-font : minor-latin ; mso-fareast-font-family : « Times New Roman » ; mso-fareast-theme-font : minor-fareast ; mso-hansi-font-family : Calibri ; mso-hansi-theme-font : minor-latin ;}

Hello guys,.

I have Cisco ASA5520 facing the ISP with private IP address. We don't have a router and how to get the IPSec VPN through the internet?

The question statement not the interface pointing to ISP isn't IP address private and inside as well.

Firewall configuration:

Firewall outside interface Gi0 10.0.1.2 > ISP 10.0.1.1 with security-level 0

Firewall inside the interface Ethernet0 192.168.1.1 > LAN switch 192.168.1.2 with security-level 100

I have public IP block 199.9.9.1/28

How can I use the public IP address to create the IPSec VPN tunnel between two sites across the internet?

can I assign a public IP address on the Gig1 inside the interface with the security level of 100 and how to apply inside to carry on this interface?

If I configure > firewall inside of the item in gi1 interface ip address 199.9.9.1/28 with security-level 100. How to make a safe lane VPN through this interface on the internet?

I'm used to the public IP address allocation to the interface outside of the firewall and private inside the interface IP address.

Please help with configuration examples and advise.

Thank you

Eric

Unfortunately, you can only complete the VPN connection on the interface the VPN connection source, in your case the external interface.

3 options:

(1) connect a router in front of the ASA and assign your public ip address to the ASA outside interface.

OR /.

(2) If your ISP can perform static translation of 1 to 1, then you can always finish the VPN on the external interface and ask your provider what is the static ip address assigned to your ASA out of the IP (10.0.1.2) - this will launch the VPN of bidirectionally

OR /.

(3) If your ISP performs PAT (dynamic NAT), then you can only start the tunnel VPN on the side of the ASA and the other end of the tunnel must be configured to allow VPN LAN-to-LAN dynamics.

client ipSec VPN and NAT on the router Cisco = FAIL

I have a Cisco 3825 router that I have set up for a Cisco VPN ipSec client. The same router is NAT.

ipSec logs, but can not reach the internal network unless NAT is disabled on the inside interface. But I need both at the same time.

Suggestions?

crypto ISAKMP policy 3

BA 3des

preshared authentication

Group 2

!

ISAKMP crypto client configuration group myclient

key password!

DNS 1.1.1.1

Domain name

pool myVPN

ACL 111

!

!

Crypto ipsec transform-set esp-3des esp-md5-hmac RIGHT

!

Crypto-map dynamic dynmap 10

Set transform-set RIGHT

market arriere-route

!

!
list of card crypto clientmap client VPN - AAA authentication
card crypto clientmap AAA - VPN isakmp authorization list
client configuration address map clientmap crypto answer
10 ipsec-isakmp crypto map clientmap Dynamics dynmap
!

interface Loopback0
IP 10.88.0.1 255.255.255.0
!
interface GigabitEthernet0/0
/ / DESC it's external interface

IP 192.168.168.5 255.255.255.0
NAT outside IP
IP virtual-reassembly
automatic duplex
automatic speed
media type rj45
clientmap card crypto
!
interface GigabitEthernet0/1

/ / DESC it comes from inside interface
10.0.1.10 IP address 255.255.255.0
IP nat inside<=================ipSec client="" connects,="" but="" cannot="" reach="" interior="" network="" unless="" this="" is="">
IP virtual-reassembly
the route cache same-interface IP
automatic duplex
automatic speed
media type rj45

!

IP local pool myVPN 10.88.0.2 10.88.0.10

p route 0.0.0.0 0.0.0.0 192.168.168.1
IP route 10.0.0.0 255.255.0.0 10.0.1.4
!

IP nat inside source list 1 interface GigabitEthernet0/0 overload
!
access-list 1 permit 10.0.0.0 0.0.255.255
access-list 111 allow ip 10.0.0.0 0.0.255.255 10.88.0.0 0.0.0.255
access-list 111 allow ip 10.88.0.0 0.0.0.255 10.0.0.0 0.0.255.255

Hello

I think that you need to configure the ACL default PAT so there first statemts 'decline' for traffic that is NOT supposed to be coordinated between the local network and VPN pool

For example, to do this kind of configuration, ACL and NAT

Note access-list 100 NAT0 customer VPN

access-list 100 deny ip 10.0.1.0 0.0.0.255 10.88.0.0 0.0.0.255

Note access-list 100 default PAT for Internet traffic

access-list 100 permit ip 10.0.1.0 0.0.0.255 ay

overload of IP nat inside source list 100 interface GigabitEthernet0/0

EDIT: seem to actually you could have more than 10 networks behind the router

Then you could modify the ACL on this

Note access-list 100 NAT0 customer VPN

access-list 100 deny ip 10.0.1.0 0.0.255.255 10.88.0.0 0.0.0.255

Note access-list 100 default PAT for Internet traffic

access-list 100 permit ip 10.0.1.0 0.0.255.255 ay

Don't forget to mark the answers correct/replys and/or useful answers to rate

-Jouni

Have problems with the IPSec VPN Client and several target networks

I use an ASA 5520 8.2 (4) running.

My goal is to get a VPN client to access more than one network within the network, for example, I need VPN client IPSec and power establish tcp connections on servers to 192.168.210.x and 10.21.9.x and 10.21.3.x

I think I'm close to having this resolved, but seems to have a routing problem. Which I think is relevant include:

Net1: 192.168.210.0/32

NET2: 10.21.0.0/16

NET2 has several subnets defined VIRTUAL local network:

DeviceManagement (vlan91): 10.21.9.0/32

Servers (vlan31): 10.21.3.0/32

# See the road

Code: C - connected, S - static, RIP, M - mobile - IGRP, R - I, B - BGP

D - EIGRP, OSPF, IA - external EIGRP, O - EX - OSPF inter zone

N1 - type external OSPF NSSA 1, N2 - type external OSPF NSSA 2

E1 - OSPF external type 1, E2 - external OSPF of type 2, E - EGP

i - IS - L1 - IS - IS level 1, L2 - IS - IS IS level 2, AI - IS inter zone

* - candidate by default, U - static route by user, o - ODR

P periodical downloaded static route

Gateway of last resort is x.x.x.x network 0.0.0.0

C 192.168.210.0 255.255.255.0 is directly connected to the inside

C 216.185.85.92 255.255.255.252 is directly connected to the outside of the

C 10.21.9.0 255.255.255.0 is directly connected, DeviceManagement

C 10.21.3.0 255.255.255.0 is directly connected, servers

S * 0.0.0.0 0.0.0.0 [1/0] via x.x.x.x, outdoor

I can communicate freely between all networks from the inside.

interface GigabitEthernet0/0

Description * INTERNAL NETWORK *.

Speed 1000

full duplex

nameif inside

security-level 100

IP 192.168.210.1 255.255.255.0

OSPF hello-interval 2

OSPF dead-interval 7

!

interface Redundant1.31

VLAN 31

nameif servers

security-level 100

IP 10.21.3.1 255.255.255.0

!

interface Redundant1.91

VLAN 91

nameif DeviceManagement

security-level 100

IP 10.21.9.1 255.255.255.0

permit same-security-traffic inter-interface

NO_NAT list of allowed ip extended access all 172.31.255.0 255.255.255.0

IP local pool vpnpool 172.31.255.1 - 172.31.255.254 mask 255.255.255.0

Overall 101 (external) interface

NAT (inside) 0-list of access NO_NAT

NAT (inside) 101 192.168.210.0 255.255.255.0

NAT (servers) 101 10.21.3.0 255.255.255.0

NAT (DeviceManagement) 101 10.21.9.0 255.255.255.0

static (inside, DeviceManagement) 192.168.210.0 192.168.210.0 netmask 255.255.255.0

static (inside, servers) 192.168.210.0 192.168.210.0 netmask 255.255.255.0

static (servers, upside down) 10.21.3.0 10.21.3.0 netmask 255.255.255.0

static (DeviceManagement, upside down) 10.21.9.0 10.21.9.0 netmask 255.255.255.0

access list IN LAN extended permitted tcp 192.168.210.0 255.255.255.0 any

access list IN LAN extended permit udp 192.168.210.0 255.255.255.0 any

LAN-IN scope ip 192.168.210.0 access list allow 255.255.255.0 any

LAN-IN extended access list allow icmp 192.168.210.0 255.255.255.0 any

access list IN LAN extended permitted tcp 10.21.0.0 255.255.0.0 any

access list IN LAN extended permitted udp 10.21.0.0 255.255.0.0 any

LAN-IN scope 10.21.0.0 ip access list allow 255.255.0.0 any

LAN-IN extended access list allow icmp 10.21.0.0 255.255.0.0 any

standard access list permits 192.168.210.0 SPLIT-TUNNEL 255.255.255.0

standard access list permits 10.21.0.0 SPLIT-TUNNEL 255.255.0.0

group-access LAN-IN in the interface inside

internal VPNUSERS group policy

attributes of the VPNUSERS group policy

value of server DNS 216.185.64.6

Protocol-tunnel-VPN IPSec

Split-tunnel-policy tunnelspecified

Split-tunnel-network-list value of SPLIT TUNNEL

field default value internal - Network.com

type VPNUSERS tunnel-group remote access

tunnel-group VPNUSERS General attributes

address vpnpool pool

strategy-group-by default VPNUSERS

tunnel-group VPNUSERS ipsec-attributes

pre-shared key *.

When a user establishes a VPN connection, their local routing tables have routes through the tunnel to the 10.21.0.0/16 and the 192.168.210.0/32.

They are only able to communicate with the network 192.168.210.0/32, however.

I tried to add the following, but it does not help:

router ospf 1000

router ID - 192.168.210.1

Network 10.21.0.0 255.255.0.0 area 1

network 192.168.210.0 255.255.255.252 area 0

area 1

Can anyone help me please with this problem? There could be a bunch of superfluous things here, and if you could show me, too, I'd be very happy. If you need more information on the config, I'll be happy to provide.

Hello Kenneth,

Based on the appliance's routing table, I can see the following

C 10.21.9.0 255.255.255.0 is directly connected, DeviceManagement

C 10.21.3.0 255.255.255.0 is directly connected, servers

C 192.168.210.0 255.255.255.0 is directly connected to the inside

And you try to connect to the 3 of them.

Politics of Split tunnel is very good, the VPN configuration is fine

The problem is here

NO_NAT list of allowed ip extended access all 172.31.255.0 255.255.255.0

NAT (inside) 0-list of access NO_NAT

Dude, you point to just inside interface and 2 other subnets are on the device management interface and the interface of servers... That is the question

Now how to solve

NO_NAT ip 192.168.210.0 access list allow 255.255.255.0 172.31.255.0 255.255.255.0

no access list NO_NAT extended permits all ip 172.31.255.0 255.255.255.0

NO_NAT_SERVERS ip 10.21.3.0 access list allow 255.255.255.0 172.31.255.0 255.255.255.0

NAT (SERVERS) 0 ACCESS-LIST NO_NAT_SERVERS

Permit access-list no.-NAT_DEVICEMANAGMENT ip 10.21.9.0 255.255.255.0 172.31.255.0 255.255.255.0

NAT (deviceManagment) 0-no.-NAT_DEVICEMANAGMENT access list

Any other questions... Sure... Be sure to note all my answers.

Julio

Router configuration Cisco for the IPSec VPN with VPN in Windows 7 builtin client

Where can I find an example config for IPSec VPN where Windows 7 native client to connect to the Cisco routers. I use the cisco 881w, in this case.

Thomas McLeod

Native Client Windows supports only L2TP over IPSec. Example at the end of this doc may be enough for you:

http://www.Cisco.com/en/us/docs/security/vpn_modules/6342/configuration/guide/6342vpn4.html#wp1036111

I've not personally configured L2TP/IPSec on IOS, only on ASA, so cannot be 100% sure that the config in the link works, but the general idea should be ok.

IP address of the IPSec VPN client did not get distributed via EIGRP

We use an ASA for VPN remote access. He is running EIGRP redistribute static routes. When a client Anyconnect SSL connects, the SAA creates a static route for this client, and it gets redistributed via EIGRP. When an IPSec VPN client connects, the SAA creates a static route for this customer, but he isn't redisributed via EIGRP and so the client can not achieve anything. Why he would distribute a static created by an IPSec client?

Thank you

Have you set up IPP on dynamic Cryptography?

IPSEC tunnel and Routing Support protocols

Hello world

I read that IPSEC does not support routing with VPN's Site to the other protocols because both are Layer4.

This means that if Site A must reach the B Site over a WAN link, we use static IP on the Site A and Site B router?

In my lab at home I config Site to Site VPN systems and they work correctly using OSPF does that mean that IPSEC supports the routing protocol?

IF someone can explain this please?

OSPF config one side

router ospf 1

3.4.4.4 router ID

Log-adjacency-changes

area 10-link virtual 10.4.4.1

passive-interface Vlan10

passive-interface Vlan20

3.4.4.4 to network 0.0.0.0 area 0

network 192.168.4.0 0.0.0.255 area 10

network 192.168.5.0 0.0.0.255 area 0

network 192.168.10.0 0.0.0.255 area 0

network 192.168.20.0 0.0.0.255 area 0

network 192.168.30.0 0.0.0.255 area 0

network 192.168.98.0 0.0.0.255 area 0

network 192.168.99.0 0.0.0.255 area 0

3550SMIA #sh ip route

Code: C - connected, S - static, mobile R - RIP, M-, B - BGP

D - EIGRP, OSPF, IA - external EIGRP, O - EX - OSPF inter zone

N1 - type external OSPF NSSA 1, N2 - type external OSPF NSSA 2

E1 - OSPF external type 1, E2 - external OSPF of type 2

i - IS - Su - summary IS, L1 - IS - IS level 1, L2 - IS level - 2

-IS inter area, * - candidate failure, U - static route by user

o - ODR, P - periodic downloaded route static

Gateway of last resort is 192.168.5.3 to network 0.0.0.0

192.168.12.0/24 [13/110] through 192.168.5.3, 3d17h, FastEthernet0/11

100.0.0.0/32 is divided into subnets, subnets 1

O 100.100.100.100 [110/3] through 192.168.5.3, 3d17h, FastEthernet0/11

3.0.0.0/8 is variably divided into subnets, 2 subnets, 2 masks

O 3.3.3.3/32 [110/2] via 192.168.5.3, 3d17h, FastEthernet0/11

C 3.4.4.0/24 is directly connected, Loopback0

C 192.168.30.0/24 is directly connected, Vlan30

64.0.0.0/32 is divided into subnets, subnets 1

O E2 64.59.135.150 [110/300] through 192.168.5.3, 1d09h, FastEthernet0/11

4.0.0.0/32 is divided into subnets, subnets 1

O 4.4.4.4 [110/2] via 192.168.5.3, 3d17h, FastEthernet0/11

C 192.168.10.0/24 is directly connected, Vlan10

172.31.0.0/24 is divided into subnets, 4 subnets

O E2 172.31.3.0 [110/300] through 192.168.5.3, 3d17h, FastEthernet0/11

O E2 172.31.2.0 [110/300] through 192.168.5.3, 3d17h, FastEthernet0/11

O E2 172.31.1.0 [110/300] through 192.168.5.3, 3d17h, FastEthernet0/11

O E2 172.31.0.0 [110/300] through 192.168.5.3, 3d17h, FastEthernet0/11

O 192.168.11.0/24 [110/3] through 192.168.5.3, 3d17h, FastEthernet0/11

O 192.168.98.0/24 [110/2] via 192.168.99.1, 3d17h, FastEthernet0/8

C 192.168.99.0/24 is directly connected, FastEthernet0/8

192.168.20.0/24 C is directly connected, Vlan20

192.168.5.0/31 is divided into subnets, subnets 1

C 192.168.5.2 is directly connected, FastEthernet0/11

C 10.0.0.0/8 is directly connected, Tunnel0

192.168.6.0/31 is divided into subnets, subnets 1

O 192.168.6.2 [110/2] via 192.168.5.3, 3d17h, FastEthernet0/11

192.168.1.0/24 [13/110] through 192.168.5.3, 3d17h, FastEthernet0/11

O * E2 0.0.0.0/0 [110/1] via 192.168.5.3, 1d09h, FastEthernet0/11

B side Config

Side A

router ospf 1

Log-adjacency-changes

network 192.168.97.0 0.0.0.255 area 0

network 192.168.98.0 0.0.0.255 area 0

network 192.168.99.0 0.0.0.255 area 0

1811w # sh ip route

Code: C - connected, S - static, mobile R - RIP, M-, B - BGP

D - EIGRP, OSPF, IA - external EIGRP, O - EX - OSPF inter zone

N1 - type external OSPF NSSA 1, N2 - type external OSPF NSSA 2

E1 - OSPF external type 1, E2 - external OSPF of type 2

i - IS - Su - summary IS, L1 - IS - IS level 1, L2 - IS level - 2

-IS inter area, * - candidate failure, U - static route by user

o - ODR, P - periodic downloaded route static

Gateway of last resort is 192.168.99.2 to network 0.0.0.0

192.168.12.0/24 [110/14] through 192.168.99.2, 3d17h, FastEthernet0

100.0.0.0/32 is divided into subnets, subnets 1

O 100.100.100.100 [110/4] through 192.168.99.2, 3d17h, FastEthernet0

3.0.0.0/32 is divided into subnets, 2 subnets

O 3.3.3.3 [110/3] through 192.168.99.2, 3d17h, FastEthernet0

O 3.4.4.4 [110/2] via 192.168.99.2, 3d17h, FastEthernet0

O 192.168.30.0/24 [110/2] via 192.168.99.2, 3d17h, FastEthernet0

64.0.0.0/32 is divided into subnets, subnets 1

O E2 64.59.135.150 [110/300] through 192.168.99.2, 1d09h, FastEthernet0

4.0.0.0/32 is divided into subnets, subnets 1

O 4.4.4.4 [110/3] through 192.168.99.2, 3d17h, FastEthernet0

O 192.168.10.0/24 [110/2] via 192.168.99.2, 3d17h, FastEthernet0

172.31.0.0/24 is divided into subnets, 4 subnets

O E2 172.31.3.0 [110/300] through 192.168.99.2, 3d17h, FastEthernet0

O E2 172.31.2.0 [110/300] through 192.168.99.2, 3d17h, FastEthernet0

O E2 172.31.1.0 [110/300] through 192.168.99.2, 3d17h, FastEthernet0

O E2 172.31.0.0 [110/300] through 192.168.99.2, 3d17h, FastEthernet0

O 192.168.11.0/24 [110/4] through 192.168.99.2, 3d17h, FastEthernet0

C 192.168.98.0/24 is directly connected, BVI98

C 192.168.99.0/24 is directly connected, FastEthernet0

O 192.168.20.0/24 [110/2] via 192.168.99.2, 3d17h, FastEthernet0

192.168.5.0/31 is divided into subnets, subnets 1

O 192.168.5.2 [110/2] via 192.168.99.2, 3d17h, FastEthernet0

192.168.6.0/31 is divided into subnets, subnets 1

O 192.168.6.2 [110/3] through 192.168.99.2, 3d17h, FastEthernet0

192.168.1.0/24 [110/14] through 192.168.99.2, 3d17h, FastEthernet0

O * E2 0.0.0.0/0 [110/1] via 192.168.99.2, 1d09h, FastEthernet0

Thank you

Mahesh

Mahesh.

Indeed, solution based purely crypto-card are not compatible with a routing protocol. Crypto card however is the legacy config we support on IOS. The best practice is to use the protection of tunnel. Any routing protocol would work then.

for example

https://learningnetwork.Cisco.com/docs/doc-2457

It's the best solution we currenty have

A Site at IOS IPSEC VPN and EIGRP

Hello

I have a connection of remote site to base via a VPN IPSEC router. I don't want to run EIGRP accoss VPN. Howerver I want adverstise the rest of the network from the router of core of the subnet to the remote site.

The remote VPN subnet is managed as a route connected on the router base?

Configuriguring a statement of network to the remote site on the router base will cause EIGRP announce the road?

You are right.

RRI (reverse Route Injection) is the correct way to announce remote routes as static routes on the HUB, and all what you need to do is redistribute static in EIGRP, so she is redistributed in your EIGRP.

Here is an example configuration:

http://www.Cisco.com/en/us/products/ps6120/products_configuration_example09186a00809d07de.shtml

(It's about OSPF and IPSec VPN dynamics, however, the concept is the same for ipsec site-to-site and redistribution in EIGRP)

Hope that helps.

Question of VPNS and router

Hello

I currently have a RV042G in my company. It works fine, but I was looking for a solution that would allow me to use VPN so that I can tunnel inside and then again connect to the internet via the tunnel. I want to have a way secure to connect to internet from my laptop while I am travelling and prefer to build my own VPN and do it myself.

If I understand correctly, the RV042G does not allow this and it only access to the local network via the tunnel. What would be the next router allowing him to fill this purpose?

Thank you!

Hi rodman

These devices work fine, you can also use third-party software not only software from Cisco to use the VPN features. On subscriptions, IAPH supports more special features such link Protect and IP addresses and you can have and buy a subscription in order to add these features to your device, however, if Don t you want what they you don t have to buy.

Cisco provide one of the best support, it has plenty of support, it is possible via chat, email or telephone, it also provide assistance free of charge for the users of this forum if you don t buy a warranty

I hope you find this answer useful,

* Please answer question mark or note the fact other users can benefit from the TI *.

Greetings,

Johnnatan Rodriguez Miranda.

Support of Cisco network engineer.

Function of automatic update for the IPsec VPN Client

Hello.

Do you have anyone ever tried the PIX / ASA ' feature IPsec VPN Client Auto-Update?

(see also Document ID: 105606).

He wants to make sure that I understand this right.

The user will receive a popup of information telling him to download the latest version of the client? And then there start the update itself?

If so, this would mean that the user must have the rights of full adminsitative using a laptop.

From my point of view, full administrator rights on a laptop are prohibited - 100% and therefore the functionality would be totally useless.

Anyone who can tell me whether I am good or bad?

Best

Frank

Frank,

You are right, if the computer desktop or labtop is completely locked regarding the installation of the software the customer won't be able to install it, they may be able to download from the link that you configured in ASA, once they connect to your server ASA RA but with regard to the installation user's machine needs rights profile appropriate to be able to install it.

HTH

-Jorge

Can connect to the IPSec VPN, but can not see the internal network

I have several users that can connect to our rooms of ussing IPSec VPN on a 5505. I have a user who can connect, but cannot see the internal network. This user is using DSL with a speedstream 4100. However, I have another user with the same configuration that can connect and see the internal network. Newspapers in ASDM show the link, but do not seem to show any errors trying to access internal. Any help will be greatly appreciated. Thank you, Bill.

Add...

ISAKMP nat-traversal crypto

communications between IPSec VPN and AnyConnect SSLVPN

Hi all

I have 2 ASAs and interconnected with ipsec VPN.

one of the ASA has SSLVPN users to access intranet resources.

but do not know how to get inside the network on an another ASA

my network architecture is less to:

192.168.1.0/24---ASA1---Internet---ASA2---172.24.0.0/16

SSLVPN use 192.168.55.0/24 ip on the external interface

L2L IPSec VPN is established between ASA1 and ASA2

192.168.1.x could access 172.24.0.0/16 via NATing to of ASA2 inside the ip interface

But now I want 192.168.55.0/24 access 172.24.0.0/16, some set up but does not work...

Are there any suggestions?

Thank you very much

Hi the split tunnel, you add with the ASA2 network should allow vpn clients send the traffic through the tunnel when they want to reach the remote subnet.

Can add you this too

nonat_outside ip access list allow

NAT (outside) 0-list of access nonat_outside

Also in the config you have not added the crypto to ASA1 acl entry. who is 192.168.55.0 to 172.24.0.0

See if that helps

SSL VPN and routing problem

Hi all

I have a strange architecture including VPN and I have a few problems that I am not able to solve:

-J' use the ssl vpn gateway to allocate internal IP addresses of the local network described in the schema (8.8.2.0 or 8.8.3.0 according to the tunnel-group network.

-The purpose is for vpn clients directly access the internal network.

This works very well if there are strictly internal communications within the network. But recently, we have installed an application that needs to access both networks. No problem, I thought, but I was wrong, there seems to be a problem of routing inherent in the architecture in place.

Let me explain the problem:

-When I access the VPN, for example I will gave the 8.8.3.5 ip address.

-Im running the application that needs to open a page on the web server, located at 8.8.2.120

-l'asa receive my tcp syn datagram and forward it directly to the directly connected interface fa0/1 (based on the routing table)

-the web server returns the response, but he sends on its default gateway which is the cisco 6509.

-6509 it sends its vlan svi 2000

- and finally the ASA it receives on its interface fa0/2 but seems he falls as she opened a tcp on fa0/1 connection and receives the response on fa0/2.

I want it's traffic by tunnel to bypass the connected roads and transmit it to a default gateway of tunnel. This would ensure that the path for the request and the response would be the same.

I would like to know if there are orders of debugging for routing decisions validate my theory?

Do you know of any response to solve this problem?

Thanks a lot for your help.

When you configure the TCP State derivation always think ' which way is the SYN package coming?

Routing failed messages always have source and destination, are of course copied the entire message?

BTW, instead of letting clients SSL addresses attributed to vlan2000? Why not give them a separate subnet and the road back via correct interface?

I would also check your config and the routing :-) table

Marcin

The IPSec VPN and routing

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