07-15-2007 09:41 PM - edited 03-11-2019 03:44 AM
I have 2 asa5505. I want to create ipsec tunnel. Do as write this http://www.cisco.com/en/US/docs/security/asa/asa72/getting_started/asa5500/quick/guide/sitvpn_b.html#wp1038592
But tunnel does not establish
ciscoasa(config)# show crypto isakmp sa
There are no isakmp sas
ciscoasa(config)# show crypto ipsec sa
There are no ipsec sas
First ASA config
ASA Version 7.2(2)
!
hostname ciscoasa
domain-name default.domain.invalid
enable password xxx
names
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.52.254 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 209.x.x.236 255.255.255.0
!
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
!
passwd xxx
ftp mode passive
dns server-group DefaultDNS
domain-name default.domain.invalid
access-list outside_20_cryptomap extended permit ip 192.168.52.0 255.255.255.0 host 209.x.x.226
pager lines 24
logging enable
logging asdm informational
logging debug-trace
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
route inside 0.0.0.0 0.0.0.0 192.168.52.240 1
route outside 192.168.1.0 255.255.255.0 209.168.200.226 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 0.0.0.0 0.0.0.0 outside
http 0.0.0.0 0.0.0.0 inside
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 20 match address outside_20_cryptomap
crypto map outside_map 20 set pfs
crypto map outside_map 20 set peer 209.165.200.226
crypto map outside_map 20 set transform-set ESP-3DES-SHA
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
tunnel-group 209.x.x.226 type ipsec-l2l
tunnel-group 209.x.x.226 ipsec-attributes
pre-shared-key *
telnet 0.0.0.0 0.0.0.0 inside
telnet 0.0.0.0 0.0.0.0 outside
telnet timeout 1440
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:xxx
: end
Solved! Go to Solution.
07-16-2007 04:41 AM
You may remove the following line as it is not needed.
no access-list outside_20_cryptomap extended permit icmp 192.168.52.0 255.255.255.0 192.168.1.0 255.255.255.0
As mattiaseriksson said you need to add nat exemption. One comment to his statement is you should not reuse the crypto acl for your nat exemption. It is always good practice to create a separate acl.
access-list nat0 extended permit ip 192.168.52.0 255.255.255.0 192.168.1.0 255.255.255.0
nat (inside) 0 access-list nat0
access-list nat0 extended permit ip 192.168.1.0 255.255.255.0 192.168.52.0 255.255.255.0
nat (inside) 0 access-list nat0
07-15-2007 09:48 PM
secon asa config
ASA Version 7.2(2)
!
hostname ciscoasa
domain-name default.domain.invalid
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.1.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 209.165.200.226 255.255.255.0
!
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
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
dns server-group DefaultDNS
domain-name default.domain.invalid
access-list outside_20_cryptomap extended permit ip 192.168.1.0 255.255.255.0 host 209.165.200.236
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-522.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0
route outside 192.168.52.0 255.255.255.0 209.168.200.236 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
http server enable
http 0.0.0.0 0.0.0.0 outside
http 0.0.0.0 0.0.0.0 inside
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 20 match address outside_20_cryptomap
crypto map outside_map 20 set pfs
crypto map outside_map 20 set peer 209.165.200.236
crypto map outside_map 20 set transform-set ESP-3DES-SHA
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
tunnel-group 209.165.200.236 type ipsec-l2l
tunnel-group 209.165.200.236 ipsec-attributes
pre-shared-key *
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
!
service-policy global_policy global
prompt hostname context
Cryptochecksum:56cb3d2d69c8d5ea880bb964ffa21899
: end
07-16-2007 12:48 AM
Hi, the access-lists you call outside_20_cryptomap is used to identify the packets that the IPSec connection permits and protects.
Both firewalls crypto maps must contain compatible crypto ACLs, which usually means that they have to be mirrored.
In your case they should look like this:
Firewall 1:
access-list outside_20_cryptomap extended permit ip 192.168.52.0 255.255.255.0 192.168.1.0 255.255.255.0
Firewall 2:
access-list outside_20_cryptomap extended permit ip 192.168.1.0 255.255.255.0 192.168.52.0 255.255.255.0
07-16-2007 01:04 AM
And in ASDM VPN wizard you refer to, the error was on the 'Hosts And Networks' page. There you should input the 192.168.52.0 as the local (source) network and 192.168.1.0 as remote (destination) network in firewall 1. In firewall 2 the networks should be reversed.
You also did not check the option to Exempt ASA side network from NAT. You need to do that on both sides as well.
07-16-2007 02:22 AM
I do this, but tunnel does not work
07-16-2007 02:24 AM
Can you attach the updated configurations for us to look at?
07-16-2007 02:53 AM
07-16-2007 03:38 AM
I assume that you do not want to NAT the traffic between the sites, so you need to add this line:
nat (inside) 0 access-list outside_20_cryptomap to both sides.
07-16-2007 04:41 AM
You may remove the following line as it is not needed.
no access-list outside_20_cryptomap extended permit icmp 192.168.52.0 255.255.255.0 192.168.1.0 255.255.255.0
As mattiaseriksson said you need to add nat exemption. One comment to his statement is you should not reuse the crypto acl for your nat exemption. It is always good practice to create a separate acl.
access-list nat0 extended permit ip 192.168.52.0 255.255.255.0 192.168.1.0 255.255.255.0
nat (inside) 0 access-list nat0
access-list nat0 extended permit ip 192.168.1.0 255.255.255.0 192.168.52.0 255.255.255.0
nat (inside) 0 access-list nat0
07-16-2007 07:06 PM
I do all of advices. But tunnel does not work.
I dont understant why. Anybody has any ideas?
Help please!!!!
07-16-2007 11:34 PM
Thanks for all. Problem solved
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