ASA - upgrade to 8.4, impossible to ping inside the interface via IPSec VPN
We have configured a site 5, site to site VPN scenario. Last week, we have upgraded 2 devices ASA 5505 to 8.4.2. Before the upgrade, our monitoring software would ping the inside interface from remote devices to confirm VPN tunnels were established, as well as the addresses of remote devices and the outside of the ASA. While we were on 8.2, remote equipment successfully ping the inside interface. After that we went to 8.4.2 we can do a ping to this interface. We looked at the newspapers and we see the ICMP traffic that is listed in the newspaper, but the remote equipment does not receive back icmp traffic. We can ping successfully from local hardware interface inside and the external interface of remote devices successfully. In addition, we can ping material behind the two devices in both directions successfully.
We are unable to remotely manage the device through the VPN tunnel
Net is:
ASA #1 inside 10.168.107.1 (running ASA 8.2)
ASA #2 inside 10.168.101.1 (running ASA 8,4)
Server 1 (behind the ASA #1) 10.168.107.34
Server 2 (behind the ASA #2) 10.168.101.14
Can ping server 1 Server 2
Can ping server 1 to 1 of the SAA
Can ping server 2-ASA 2
Can ping server 2 to server 1
Can ping server 2 ASA 1
Can ping ASA 2 ASA 1
can not ping ASA 1 and 2 of the ASA
can not ping server 1 and 2 of the ASA
cannot access the ASA 2 https for management interface, nor can the ASDM software
Here is the config on ASA (attached) 2.
Any thoughts would be appreciated.
Hey Joseph,.
Most likely, you hit this bug:
CSCtr16184 Details of bug
To-the-box traffic switches vpn hosts after upgrade to 8.4.2. | |
Symptom: After the upgrade of the ASA to 8.4.2 all management traffic to employment (including the) ICMP/telnet/ssh/ASDM) hosts via the VPN (L2L or remote access VPN) can fail the IP access address to the administration. Conditionsof : 1. the problem occurs if ASA is on 8.4.2. Not been seen on 8.4.1. 2. the user directly logged in the face of internal interfaces no problem with ICMP/telnet/ssh/AMPS in their respective interfaces. Workaround: The problem goes back to a Manual NAT statement that straddles the address IP-access to the administration. The NAT must have both the source areas and destination. Add the keyword "research route" at the end of the statement by NAT solves the problem. Ex: IP address access to the administration Interface of the ASA is 192.168.1.1. ! Statement by NAT overlapping: NAT obj destination - 192.168.1.0 obj - 192.168.1.0 Shared source (indoor, outdoor) VPN-vpn-obj static obj! New declaration: NAT obj destination - 192.168.1.0 obj - 192.168.1.0 Shared source (indoor, outdoor) public static obj - vpn vpn-obj-research route |
HTH,
Raga
Tags: Cisco Security
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Hello
To be honest, I can't see anything in the configuration that should be a problem.
Your NAT settings seem to be correct.
You have the global setting of "sysopt connection permit - vpn" who does not appear in this form in the CLI configuration. This configuration means essentially that the SAA would allow traffic from a VPN connection to work around interface ACL of the interface when the VPN connection is completed (outside)
Your ACL Split Tunnel is also correct.
You might connect with VPN Client and run a continuous ICMP to a host of LAN and provide an output of the following command after a the ICMP has run a few seconds
Crypto ipsec to show his
Should see the counters of VPN.
You can also try adding
management-access inside
This should allowed you to the 'internal' to the ASA IP ICMP and also manage ASA through the VPN connection by using the 'internal' the IP address provided you have enabled it. But for this you need to change the configuration of "nat" in this
NAT (inside, outside) static source inside obj obj-indoor destination static obj - vpn vpn-obj-research route
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-Jouni
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Point VPN network ssh interface inside rather than the outside, should work, while vpn - ssh to the asa inside the ip address of the interface.
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Concerning
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Hello
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authentication crack
3des encryption
sha hash
Group 2
life 86400
IKEv1 crypto policy 110
authentication rsa - sig
3des encryption
sha hash
Group 2
life 86400
IKEv1 crypto policy 120
preshared authentication
3des encryption
sha hash
Group 2
life 86400
IKEv1 crypto policy 130
authentication crack
the Encryption
sha hash
Group 2
life 86400
IKEv1 crypto policy 140
authentication rsa - sig
the Encryption
sha hash
Group 2
life 86400
IKEv1 crypto policy 150
preshared authentication
the Encryption
sha hash
Group 2
life 86400
!
track 10 rtr 100 accessibility
Telnet 192.168.200.0 255.255.255.0 inside
Telnet 192.168.202.0 255.255.255.0 inside
Telnet timeout 5
SSH 192.168.202.0 255.255.255.0 inside
SSH 192.168.200.0 255.255.255.0 inside
SSH 0.0.0.0 0.0.0.0 outdoors
SSH timeout 15
SSH group dh-Group1-sha1 key exchange
Console timeout 0
management-access inside
a basic threat threat detection
Statistics-list of access threat detection
no statistical threat detection tcp-interception
WebVPN
internal group vpntunnel strategy
Group vpntunnel policy attributes
Ikev1 VPN-tunnel-Protocol
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list vpntunnel_splitTunnelAcl
field default value green.com
internal vpntunnell group policy
attributes of the strategy of group vpntunnell
Ikev1 VPN-tunnel-Protocol
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list gbnlvpntunnell_splitTunnelAcl
field default value green.com
Green user name encrypted BoEFKkDtbnX5Uy1Q privilege 15 password
attributes of user name THE
VPN-group-policy gbnlvpn
tunnel-group vpntunnel type remote access
tunnel-group vpntunnel General attributes
address VPNPOOL pool
strategy-group-by default vpntunnel
tunnel-group vpntunnel ipsec-attributes
IKEv1 pre-shared-key *.
type tunnel-group vpntunnell remote access
tunnel-group vpntunnell General-attributes
address VPNPOOL2 pool
Group Policy - by default-vpntunnell
vpntunnell group of tunnel ipsec-attributes
IKEv1 pre-shared-key *.
!
class-map inspection_default
match default-inspection-traffic
!
!
type of policy-card inspect dns migrated_dns_map_1
parameters
maximum message length automatic of customer
message-length maximum 512
Policy-map global_policy
class inspection_default
inspect the migrated_dns_map_1 dns
inspect the ftp
inspect h323 h225
inspect the h323 ras
inspect the rsh
inspect the rtsp
inspect esmtp
inspect sqlnet
inspect the skinny
inspect sunrpc
inspect xdmcp
inspect the sip
inspect the netbios
inspect the tftp
Review the ip options
!
global service-policy global_policy
context of prompt hostname
no remote anonymous reporting call
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] / * /
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:7c1b1373bf2e2c56289b51b8dccaa565
Hello
1 - Please run these commands:
"crypto isakmp nat-traversal 30.
"crypto than dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 Road opposite value.
The main issue here is that you have two roads floating and outside it has a better than backup metric, that's why I added the command 'reverse-road '.
Please let me know.
Thank you.
-
try VPN remote ping inside the network
I use this Setup
http://www.Cisco.com/image/gif/en/us/guest/tech/TK372/c1492/ccmigration_09186a008009442e.gif
I cannot ping inside user from the remote client?
do you know why?
Add...
management-access inside
Please evaluate the useful messages.
-
Hello!
I have a 5515 ASA with the configuration below. I have configure the ASA as remote access with anyconnect VPN server, now my problem is that I can connect but I can not ping.
ASA Version 9.1 (1)
!
ASA host name
domain xxx.xx
names of
local pool VPN_CLIENT_POOL 192.168.12.1 - 192.168.12.254 255.255.255.0 IP mask
!
interface GigabitEthernet0/0
nameif inside
security-level 100
192.168.11.1 IP address 255.255.255.0
!
interface GigabitEthernet0/1
Description Interface_to_VPN
nameif outside
security-level 0
IP 111.222.333.444 255.255.255.240
!
interface GigabitEthernet0/2
Shutdown
No nameif
no level of security
no ip address
!
interface GigabitEthernet0/3
Shutdown
No nameif
no level of security
no ip address
!
interface GigabitEthernet0/4
Shutdown
No nameif
no level of security
no ip address
!
interface GigabitEthernet0/5
Shutdown
No nameif
no level of security
no ip address
!
interface Management0/0
management only
nameif management
security-level 100
192.168.5.1 IP address 255.255.255.0
!
passive FTP mode
DNS server-group DefaultDNS
www.ww domain name
permit same-security-traffic intra-interface
the object of the LAN network
subnet 192.168.11.0 255.255.255.0
LAN description
network of the SSLVPN_POOL object
255.255.255.0 subnet 192.168.12.0
VPN_CLIENT_ACL list standard access allowed 192.168.11.0 255.255.255.0
pager lines 24
Enable logging
asdm of logging of information
Within 1500 MTU
Outside 1500 MTU
management of MTU 1500
no failover
ICMP unreachable rate-limit 1 burst-size 1
ASDM image disk0: / asdm - 711.bin
don't allow no asdm history
ARP timeout 14400
no permit-nonconnected arp
NAT (exterior, Interior) static source SSLVPN_POOL SSLVPN_POOL static destination LAN LAN
Route outside 0.0.0.0 0.0.0.0 111.222.333.443 1
Timeout xlate 03:00
Pat-xlate timeout 0:00:30
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
Floating conn timeout 0:00:00
dynamic-access-policy-registration DfltAccessPolicy
WebVPN
list of URLS no
identity of the user by default-domain LOCAL
the ssh LOCAL console AAA authentication
AAA authentication http LOCAL console
LOCAL AAA authorization exec
Enable http server
http 192.168.5.0 255.255.255.0 management
No snmp server location
No snmp Server contact
Server enable SNMP traps snmp authentication linkup, linkdown warmstart of cold start
Crypto ipsec pmtu aging infinite - the security association
Crypto ca trustpoint ASDM_TrustPoint5
Terminal registration
E-mail [email protected] / * /
name of the object CN = ASA
address-IP 111.222.333.444
Configure CRL
Crypto ca trustpoint ASDM_TrustPoint6
Terminal registration
domain name full vpn.domain.com
E-mail [email protected] / * /
name of the object CN = vpn.domain.com
address-IP 111.222.333.444
pair of keys sslvpn
Configure CRL
trustpool crypto ca policy
string encryption ca ASDM_TrustPoint6 certificates
Telnet timeout 5
SSH 192.168.11.0 255.255.255.0 inside
SSH timeout 30
Console timeout 0
No ipv6-vpn-addr-assign aaa
no local ipv6-vpn-addr-assign
192.168.5.2 management - dhcpd addresses 192.168.5.254
!
a basic threat threat detection
Statistics-list of access threat detection
no statistical threat detection tcp-interception
SSL-trust outside ASDM_TrustPoint6 point
WebVPN
allow outside
CSD image disk0:/csd_3.5.2008-k9.pkg
AnyConnect image disk0:/anyconnect-win-3.1.04066-k9.pkg 1
AnyConnect enable
tunnel-group-list activate
attributes of Group Policy DfltGrpPolicy
Ikev1 VPN-tunnel-Protocol l2tp ipsec without ssl-client
internal VPN_CLIENT_POLICY group policy
VPN_CLIENT_POLICY group policy attributes
WINS server no
value of server DNS 192.168.11.198
VPN - 5 concurrent connections
VPN-session-timeout 480
client ssl-VPN-tunnel-Protocol
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list VPN_CLIENT_ACL
myComp.local value by default-field
the address value VPN_CLIENT_POOL pools
WebVPN
activate AnyConnect ssl dtls
AnyConnect Dungeon-Installer installed
AnyConnect ssl keepalive 20
time to generate a new key 30 AnyConnect ssl
AnyConnect ssl generate a new method ssl key
AnyConnect client of dpd-interval 30
dpd-interval gateway AnyConnect 30
AnyConnect dtls lzs compression
AnyConnect modules value vpngina
value of customization DfltCustomization
internal IT_POLICY group policy
IT_POLICY group policy attributes
WINS server no
value of server DNS 192.168.11.198
VPN - connections 3
VPN-session-timeout 120
Protocol-tunnel-VPN-client ssl clientless ssl
Split-tunnel-policy tunnelspecified
value of Split-tunnel-network-list VPN_CLIENT_ACL
field default value societe.com
the address value VPN_CLIENT_POOL pools
WebVPN
activate AnyConnect ssl dtls
AnyConnect Dungeon-Installer installed
AnyConnect ssl keepalive 20
AnyConnect dtls lzs compression
value of customization DfltCustomization
username vpnuser password PA$ encrypted $WORD
vpnuser username attributes
VPN-group-policy VPN_CLIENT_POLICY
type of remote access service
Username vpnuser2 password PA$ encrypted $W
username vpnuser2 attributes
type of remote access service
username admin password ADMINPA$ $ encrypted privilege 15
VPN Tunnel-group type remote access
General-attributes of VPN Tunnel-group
address VPN_CLIENT_POOL pool
Group Policy - by default-VPN_CLIENT_POLICY
VPN Tunnel-group webvpn-attributes
the aaa authentication certificate
enable VPN_to_R group-alias
type tunnel-group IT_PROFILE remote access
attributes global-tunnel-group IT_PROFILE
address VPN_CLIENT_POOL pool
Group Policy - by default-IT_POLICY
tunnel-group IT_PROFILE webvpn-attributes
the aaa authentication certificate
enable IT Group-alias
!
class-map inspection_default
match default-inspection-traffic
!
!
type of policy-card inspect dns preset_dns_map
parameters
maximum message length automatic of customer
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 rsh
inspect the rtsp
inspect esmtp
inspect sqlnet
inspect the skinny
inspect sunrpc
inspect xdmcp
inspect the sip
inspect the netbios
inspect the tftp
Review the ip options
inspect the icmp
!
global service-policy global_policy
context of prompt hostname
no remote anonymous reporting call
: end
Help me please! Thank you!
Hello
Please set ACLs to allow ICMP between these two subnets (192.168.11.0 and 192.168.12.0) and check. It should ping. Let me know if it does not work.
Thank you
swap
-
Cannot ping inside the vpn client hosts. It's a NAT problem
Hello everyone, I'm running into what seems to be a cause of exclusion with an IOS IPSEC VPN NAT/nat. I can connect to the VPN with cisco IPSEC VPN client, and I am able to authenticate. Once I have authenticate, I'm not able to reach one of the guests inside. Below is my relevant config. Any help would be greatly appreciated.
AAA new-model
!
!
AAA authentication login default local
radius of group AAA authentication login userauthen
AAA authorization exec default local
AAA authorization groupauthor LAN
crypto ISAKMP policy 3
BA 3des
preshared authentication
Group 2
!
ISAKMP crypto client configuration group businessVPN
key xxxxxx
DNS 192.168.10.2
business.local field
pool vpnpool
ACL 108
Crypto isakmp VPNclient profile
businessVPN group identity match
client authentication list userauthen
ISAKMP authorization list groupauthor
client configuration address respond
!
!
Crypto ipsec transform-set esp-3des esp-sha-hmac RIGHT
!
Crypto-map dynamic dynmap 10
Set transform-set RIGHT
Define VPNclient isakmp-profile
market arriere-route
!
!
10 ipsec-isakmp crypto map clientmap Dynamics dynmap
interface Loopback0
IP 10.1.10.2 255.255.255.252
no ip redirection
no ip unreachable
no ip proxy-arp
IP virtual-reassembly
!
Null0 interface
no ip unreachable
!
interface FastEthernet0/0
IP 111.111.111.138 255.255.255.252
IP access-group outside_in in
no ip redirection
no ip unreachable
no ip proxy-arp
NAT outside IP
inspect the outgoing IP outside
IP virtual-reassembly
automatic duplex
automatic speed
clientmap card crypto
!
the integrated-Service-Engine0/0 interface
description Locator is initialized with default IMAP group
IP unnumbered Loopback0
no ip redirection
no ip unreachable
no ip proxy-arp
IP virtual-reassembly
ip address of service-module 10.1.10.1 255.255.255.252
Service-module ip default gateway - 10.1.10.2
interface BVI1
IP 192.168.10.1 255.255.255.0
no ip redirection
no ip unreachable
no ip proxy-arp
IP nat inside
IP virtual-reassembly
IP nat inside source static tcp 192.168.10.2 25 interface FastEthernet0/0 25
IP nat inside source static tcp 192.168.10.2 443 interface FastEthernet0/0 443
IP nat inside source static tcp 192.168.10.2 3389 interface FastEthernet0/0 3389
IP nat inside source map route nat interface FastEthernet0/0 overload
nat extended IP access list
deny ip 192.168.10.0 0.0.0.255 192.168.109.0 0.0.0.255
refuse the 10.1.1.0 ip 0.0.0.255 192.168.109.0 0.0.0.255
ip licensing 10.1.1.0 0.0.0.255 any
permit ip 192.168.10.0 0.0.0.255 any
sheep extended IP access list
permit ip 192.168.10.0 0.0.0.255 192.168.109.0 0.0.0.255
ip permit 10.1.10.0 0.0.0.255 192.168.109.0 0.0.0.255
ip licensing 10.1.1.0 0.0.0.255 192.168.109.0 0.0.0.255
outside_in extended IP access list
permit tcp object-group Yes_SMTP host 111.111.111.138 eq smtp
permit any any eq 443 tcp
permit tcp 20.20.20.96 0.0.0.31 host 111.111.111.138 eq 3389
permit tcp 20.20.20.96 0.0.0.31 host 111.111.111.138 eq 22
allow any host 111.111.111.138 esp
allow any host 111.111.111.138 eq isakmp udp
allow any host 111.111.111.138 eq non500-isakmp udp
allow any host 111.111.111.138 ahp
allow accord any host 111.111.111.138
access-list 108 allow ip 192.168.109.0 0.0.0.255 192.168.10.0 0.0.0.255
access-list 108 allow ip 192.168.109.0 0.0.0.255 10.1.1.0 0.0.0.255
access-list 108 allow ip 192.168.109.0 0.0.0.255 10.1.10.0 0.0.0.255
!
!
!
!
route nat allowed 10 map
match ip address nat
1 channel ip bridge
In my view, the acl applied to customer is back. It must allow traffic from the internal network to the pool of customers.
To confirm, you can open the Cisco VPN client statistics (after login) then go in the route Details tab. We should see the networks you should be able to reach the customer. Make sure that the good ones are here.
Kind regards
-
I can't ping the interface inside of asa or telnet, when I came across the anyconnect vpn
Hey Cisco net guys pro
When I connect via anyconnect VPN to ASA 9.x, OS, I cannot ping inside
the interface of asa or telnet, but I could ping at the interface of the router address
ASA, the same two subnetTelnet 0.0.0.0 0.0.0.0 inside
ICMP allow any insid
Hi Ibrahim.
Try 'inside access management' and let us know how it rates.
Kind regards
Dinesh MoudgilPS Please rate helpful messages.
-
Impossible to ping anyconnect Client IP de ASA
Hello world
I can't connect to cisco anyconenct fine no problem.
When connected I ping the SAA in interface and other subnets that are behind the ASA inside the interface from the PC connected through the VPN.
My only problem is that of ASA, I cannot ping IP of 10.0.0.5.
ASA1 # sh anyconnect vpn-sessiondb
Session type: AnyConnect
User name: anyconnect_user index: 54
Assigned IP: 10.0.0.5 Public IP address: 192.168.98.2
Protocol: AnyConnect-Parent-Tunnel SSL DTLS-Tunnel
License: AnyConnect Essentials
Encryption: AnyConnect-Parent: (1) no SSL Tunnel: (1) AES128 DTLS-Tunnel: (1) AES128
Hash: AnyConnect-Parent: (1) no SSL Tunnel: (1) SHA1 DTLS-Tunnel: SHA1 (1)
TX Bytes: 12318 bytes Rx: 73502
Group Policy: anyconnect_group
Tunnel of Group: anyconnect_connection_profile
Connect time: 23:21:28 MST Friday, March 7, 2014
Duration: 0 h: 34 m: 33 s
Inactivity: 0 h: 00 m: 00s
Result of the NAC: unknown
Map VLANS: VLAN n/a: noI ping the switch connected to ASA inside interface
ASA1 # ping 10.0.0.2
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.0.0.2, time-out is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = ms 04/01/10
I can ping from the ASA inside interface
ASA1 # ping 10.0.0.1 - ASA inside interface
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.0.0.1, time-out is 2 seconds:
!!!!!
Success rate is 100 per cent (5/5), round-trip min/avg/max = 1/1/1 ms
ASA1 # ping 10.0.0.5
Type to abort escape sequence.
Send 5, echoes ICMP 100 bytes to 10.0.0.5, time-out is 2 seconds:
?????
Success rate is 0% (0/5)
ASA1 #.
Journal of the shows
March 7, 2014 23:00:52: % ASA-6-302020: built outgoing ICMP connection for 10.0.0.5/0(LOCAL\anyconnect_user faddr) gaddr laddr 192.168.1.171/1168 192.168.1.171/1168
March 7, 2014 23:01:02: % ASA-6-302021: connection of disassembly ICMP for faddr 10.0.0.5/0(LOCAL\anyconnect_user) gaddr laddr 192.168.1.171/1168 192.168.1.171/1168
Where IP 192.168.1.171 is ASA outside interface
Concerning
MAhesh
Hello Manu,
Have you tried to ping the network interior? Or the package from inside the source interface of the ASA? Remember, you should have some rules exemption nat for packets going through the VPN connection. That's how specify us which networks are allowed to join the VPN clients. If you ping without specify any interface the packet is going to come from the external interface, and probably this interface/subnet is not allowed through the VPN connection. Using split tunnel or tunnelall?
You can try to activate the management of access to the inside interface and the ping from the inside. These packages should hit the exemption nat rule and will be sent through the tunnel instead of the Internet.
These are the necessary commands:
To specify an interface as an interface of management only, enter the following command:
hostname(config)# management access inside
Then, you could do an inside 10.0.0.5 ping to ping the ASA AnyConnect client.
Notes on the access management command:
If your VPN tunnel ends on an interface, but you want to manage the ASA by accessing a different interface, you can identify this interface as an interface for management access. For example, if you enter the ASA of the external interface, this feature allows you to connect inside the interface by using ASDM, SSH, Telnet or SNMP. or you can test inside the interface at the entrance to the external interface. Management is accessible by the following VPN tunnels types: client IPsec, the client AnyConnect SSL VPN and IPsec LAN-to-LAN.
Hope this helps,
Luis
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