07-24-2013 03:32 AM
I have setup a IPSec vpn client connection to a Cisco ASA 5505, when I connect to the unit it fully authenticates and issues me an ip address on the local lan however when I attempt to connect to any service on the local lan the following message is displayed in the log can you help:
Teardown UDP connection 192.168.110.200 53785 192.168.110.21 53 outside:192.168.110.200/53785(LOCAL\username) to inside 192.168.110/53
See the attached file for a sanitised version of the config.
07-24-2013 06:21 AM
Hi Graham,
There's not attachement of your config, Kindly attach and post again. But out of curiousity did you say, you get ip addressed assigned by the local Lan? If yes! well I will suggest you create an Ip pool for the remote client connection on the ASA for them to pick up an IP from the pool on the ASA vs Picking up from the LAN. Just to simplify things i guess!
Cheers
Teddy
07-24-2013 07:17 AM
Hi Teddy, I have created a local pool and the VPN Client looks ok. Since creating the post I have carried out some more tests, the 5505 I am trying to connect to is also connected via a static IPSec tunnel the hub of our network, from my client I can connect to any remote device accross multiple subnets i.e. 192.168.16.0/24, 192.168.113.0/24 the only subnet I cannot connect to is 192.168.110.0/24 bellonging to the ASA I am connected to. This is my current config:
:
ASA Version 9.1(1)
!
hostname ASA5505MAN
domain-name ********
names
dns-guard
ip local pool MANIPPool 192.168.110.200-192.168.110.220 mask 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
switchport access vlan 5
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.110.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 82.*.*.* *.*.*.*
!
interface Vlan5
no forward interface Vlan2
nameif DMZ
security-level 50
ip address 192.168.17.1 255.255.255.0
!
boot system disk0:/asa911-k8.bin
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network obj_any
subnet 0.0.0.0 0.0.0.0
object network NETWORK_OBJ_192.168.0.0_16
subnet 192.168.0.0 255.255.0.0
object network NETWORK_OBJ_192.168.110.0_24
subnet 192.168.110.0 255.255.255.0
object network ******
host 192.168.110.21
object network External-1
host 82.*.*.*
object network visitor-wifi
subnet 192.168.17.0 255.255.255.0
object network NETWORK_OBJ_192.168.110.192_27
subnet 192.168.110.192 255.255.255.224
access-list outside_cryptomap remark C****
access-list outside_cryptomap extended permit ip 192.168.110.0 255.255.255.0 object NETWORK_OBJ_192.168.0.0_16
access-list VPN-UserssplitTunnelAcl_1 standard permit any4
access-list VPN-Users_splitTunnelAcl standard permit 192.168.0.0 255.255.0.0
access-list outside_cryptomap_1 extended permit ip object NETWORK_OBJ_192.168.110.0_24 object NETWORK_OBJ_192.168.0.0_16
access-list misltd_splitTunnelAcl standard permit 192.168.0.0 255.255.0.0
ip verify reverse-path interface outside
ip verify reverse-path interface DMZ
no arp permit-nonconnected
nat (inside,outside) source static NETWORK_OBJ_192.168.110.0_24 NETWORK_OBJ_192.168.110.0_24 destination static NETWORK_OBJ_192.168.0.0_16 NETWORK_OBJ_192.168.0.0_16
nat (inside,outside) source static NETWORK_OBJ_192.168.0.0_16 NETWORK_OBJ_192.168.0.0_16 destination static NETWORK_OBJ_192.168.110.192_27 NETWORK_OBJ_192.168.110.192_27 no-proxy-arp route-lookup
!
object network obj_any
nat (inside,outside) dynamic interface
!
nat (inside,outside) after-auto source dynamic any interface
route outside 0.0.0.0 0.0.0.0 82.*.*.* 1
management-access inside
: end
07-24-2013 07:40 AM
This looks ok to me! uhmm can you do some debugs lets see
debug crypto ikev1 7
debug crypto ipsec 7
also I would like to see the
show crypto isakmp as
show crypto ipsec sa too!!
This could give us another side to whats happening. For me if you are authentication very well but can't just seem to reach the inside, Well from my little experience there are two things usually involved, like I said, my experience with such case is either a nat case, which urs seems fine or Routing issues. So I ask do you have some kind of switch that does routing or points routes behind your ASA?
Teddy
07-24-2013 08:03 AM
This is a sanitised version of the crypto dump, I have changed the user and IP addresses
ASA5505MAN# debug crypto ikev1 7
ASA5505MAN# debug crypto ipsec 7
ASA5505MAN# Jul 24 15:49:03 [IKEv1]IP = x.x.x.x, IKE_DECODE RECEIVED Message (msgid=fbc167de) with payloads : HDR + HASH (8) + NOTIFY (11) + NONE (0) total length : 84
Jul 24 15:49:03 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, processing hash payload
Jul 24 15:49:03 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, processing notify payload
Jul 24 15:49:03 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, Received keep-alive of type DPD R-U-THERE (seq number 0xa6dcb72)
Jul 24 15:49:03 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, Sending keep-alive of type DPD R-U-THERE-ACK (seq number 0xa6dcb72)
Jul 24 15:49:03 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, constructing blank hash payload
Jul 24 15:49:03 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, constructing qm hash payload
Jul 24 15:49:03 [IKEv1]IP = x.x.x.x, IKE_DECODE SENDING Message (msgid=515fbf7e) with payloads : HDR + HASH (8) + NOTIFY (11) + NONE (0) total length : 84
Jul 24 15:49:18 [IKEv1]IP = x.x.x.x, IKE_DECODE RECEIVED Message (msgid=2fe7cf10) with payloads : HDR + HASH (8) + NOTIFY (11) + NONE (0) total length : 84
Jul 24 15:49:18 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, processing hash payload
Jul 24 15:49:18 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, processing notify payload
Jul 24 15:49:18 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, Received keep-alive of type DPD R-U-THERE (seq number 0xa6dcb73)
Jul 24 15:49:18 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, Sending keep-alive of type DPD R-U-THERE-ACK (seq number 0xa6dcb73)
Jul 24 15:49:18 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, constructing blank hash payload
Jul 24 15:49:18 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, constructing qm hash payload
Jul 24 15:49:18 [IKEv1]IP = x.x.x.x, IKE_DECODE SENDING Message (msgid=e450c971) with payloads : HDR + HASH (8) + NOTIFY (11) + NONE (0) total length : 84
Jul 24 15:49:28 [IKEv1]IP = x.x.x.x, IKE_DECODE RECEIVED Message (msgid=e6c212e7) with payloads : HDR + HASH (8) + NOTIFY (11) + NONE (0) total length : 84
Jul 24 15:49:28 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, processing hash payload
Jul 24 15:49:28 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, processing notify payload
Jul 24 15:49:28 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, Received keep-alive of type DPD R-U-THERE (seq number 0xa6dcb74)
Jul 24 15:49:28 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, Sending keep-alive of type DPD R-U-THERE-ACK (seq number 0xa6dcb74)
Jul 24 15:49:28 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, constructing blank hash payload
Jul 24 15:49:28 [IKEv1 DEBUG]Group = VPN-Users, Username = username, IP = x.x.x.x, constructing qm hash payload
Jul 24 15:49:28 [IKEv1]IP = x.x.x.x, IKE_DECODE SENDING Message (msgid=af5953c7) with payloads : HDR + HASH (8) + NOTIFY (11) + NONE (0) total length : 84
This is the isakmp dump
ASA5505MAN# show crypto isakmp
IKEv1 SAs:
Active SA: 2
Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)
Total IKE SA: 2
1 IKE Peer: x.x.x.x
Type : L2L Role : initiator
Rekey : no State : MM_ACTIVE
2 IKE Peer: x.x.x.x
Type : user Role : responder
Rekey : no State : AM_ACTIVE
There are no IKEv2 SAs
Global IKEv1 Statistics
Active Tunnels: 1
Previous Tunnels: 40
In Octets: 322076
In Packets: 2060
In Drop Packets: 84
In Notifys: 1072
In P2 Exchanges: 35
In P2 Exchange Invalids: 0
In P2 Exchange Rejects: 0
In P2 Sa Delete Requests: 24
Out Octets: 591896
Out Packets: 3481
Out Drop Packets: 0
Out Notifys: 2101
Out P2 Exchanges: 275
Out P2 Exchange Invalids: 0
Out P2 Exchange Rejects: 0
Out P2 Sa Delete Requests: 284
Initiator Tunnels: 231
Initiator Fails: 221
Responder Fails: 76
System Capacity Fails: 0
Auth Fails: 54
Decrypt Fails: 0
Hash Valid Fails: 0
No Sa Fails: 30
Global IKEv2 Statistics
Active Tunnels: 0
Previous Tunnels: 0
In Octets: 0
In Packets: 0
In Drop Packets: 0
In Drop Fragments: 0
In Notifys: 0
In P2 Exchange: 0
In P2 Exchange Invalids: 0
In P2 Exchange Rejects: 0
In IPSEC Delete: 0
In IKE Delete: 0
Out Octets: 0
Out Packets: 0
Out Drop Packets: 0
Out Drop Fragments: 0
Out Notifys: 0
Out P2 Exchange: 0
Out P2 Exchange Invalids: 0
Out P2 Exchange Rejects: 0
Out IPSEC Delete: 0
Out IKE Delete: 0
SAs Locally Initiated: 0
SAs Locally Initiated Failed: 0
SAs Remotely Initiated: 0
SAs Remotely Initiated Failed: 0
System Capacity Failures: 0
Authentication Failures: 0
Decrypt Failures: 0
Hash Failures: 0
Invalid SPI: 0
In Configs: 0
Out Configs: 0
In Configs Rejects: 0
Out Configs Rejects: 0
Previous Tunnels: 0
Previous Tunnels Wraps: 0
In DPD Messages: 0
Out DPD Messages: 0
Out NAT Keepalives: 0
IKE Rekey Locally Initiated: 0
IKE Rekey Remotely Initiated: 0
CHILD Rekey Locally Initiated: 0
CHILD Rekey Remotely Initiated: 0
IKEV2 Call Admission Statistics
Max Active SAs: No Limit
Max In-Negotiation SAs: 12
Cookie Challenge Threshold: Never
Active SAs: 0
In-Negotiation SAs: 0
Incoming Requests: 0
Incoming Requests Accepted: 0
Incoming Requests Rejected: 0
Outgoing Requests: 0
Outgoing Requests Accepted: 0
Outgoing Requests Rejected: 0
Rejected Requests: 0
Rejected Over Max SA limit: 0
Rejected Low Resources: 0
Rejected Reboot In Progress: 0
Cookie Challenges: 0
Cookie Challenges Passed: 0
Cookie Challenges Failed: 0
Global IKEv1 IPSec over TCP Statistics
--------------------------------
Embryonic connections: 0
Active connections: 0
Previous connections: 0
Inbound packets: 0
Inbound dropped packets: 0
Outbound packets: 0
Outbound dropped packets: 0
RST packets: 0
Recevied ACK heart-beat packets: 0
Bad headers: 0
Bad trailers: 0
Timer failures: 0
Checksum errors: 0
Internal errors: 0
ASA5505MAN#
and this is the ipsec dump
ASA5505MAN# show crypto ipsec sa
interface: outside
Crypto map tag: SYSTEM_DEFAULT_CRYPTO_MAP, seq num: 65535, local addr: x.x.x.x
local ident (addr/mask/prot/port): (0.0.0.0/0.0.0.0/0/0)
remote ident (addr/mask/prot/port): (192.168.110.200/255.255.255.255/0/0)
current_peer: x.x.x.x, username: username
dynamic allocated peer ip: 192.168.110.200
#pkts encaps: 778, #pkts encrypt: 778, #pkts digest: 778
#pkts decaps: 1959, #pkts decrypt: 1959, #pkts verify: 1959
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 778, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: x.x.x.x/4500, remote crypto endpt.: x.x.x.x/54599
path mtu 1500, ipsec overhead 82(52), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: 532B60D0
current inbound spi : 472C8AE7
inbound esp sas:
spi: 0x472C8AE7 (1194101479)
transform: esp-aes esp-sha-hmac no compression
in use settings ={RA, Tunnel, NAT-T-Encaps, IKEv1, }
slot: 0, conn_id: 241664, crypto-map: SYSTEM_DEFAULT_CRYPTO_MAP
sa timing: remaining key lifetime (sec): 26551
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0xFFFFFFFF 0xFFFFFFFF
outbound esp sas:
spi: 0x532B60D0 (1395351760)
transform: esp-aes esp-sha-hmac no compression
in use settings ={RA, Tunnel, NAT-T-Encaps, IKEv1, }
slot: 0, conn_id: 241664, crypto-map: SYSTEM_DEFAULT_CRYPTO_MAP
sa timing: remaining key lifetime (sec): 26551
IV size: 16 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
Crypto map tag: outside_map0, seq num: 1, local addr: x.x.x.x
access-list outside_cryptomap_1 extended permit ip 192.168.110.0 255.255.255.0 192.168.0.0 255.255.0.0
local ident (addr/mask/prot/port): (192.168.110.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.0.0/255.255.0.0/0/0)
current_peer: x.x.x.x
#pkts encaps: 39333117, #pkts encrypt: 39333117, #pkts digest: 39333117
#pkts decaps: 24914965, #pkts decrypt: 24914965, #pkts verify: 24914965
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 39333117, #pkts comp failed: 0, #pkts decomp failed: 0
#pre-frag successes: 0, #pre-frag failures: 0, #fragments created: 0
#PMTUs sent: 0, #PMTUs rcvd: 0, #decapsulated frgs needing reassembly: 0
#TFC rcvd: 0, #TFC sent: 0
#Valid ICMP Errors rcvd: 0, #Invalid ICMP Errors rcvd: 0
#send errors: 0, #recv errors: 0
local crypto endpt.: x.x.x.x/0, remote crypto endpt.: x.x.x.x/0
path mtu 1500, ipsec overhead 58(36), media mtu 1500
PMTU time remaining (sec): 0, DF policy: copy-df
ICMP error validation: disabled, TFC packets: disabled
current outbound spi: F6943017
current inbound spi : E6CDF924
inbound esp sas:
spi: 0xE6CDF924 (3872258340)
transform: esp-3des esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 163840, crypto-map: outside_map0
sa timing: remaining key lifetime (kB/sec): (3651601/15931)
IV size: 8 bytes
replay detection support: Y
Anti replay bitmap:
0xFFFFFFFF 0xFFFFFFFF
outbound esp sas:
spi: 0xF6943017 (4136906775)
transform: esp-3des esp-sha-hmac no compression
in use settings ={L2L, Tunnel, IKEv1, }
slot: 0, conn_id: 163840, crypto-map: outside_map0
sa timing: remaining key lifetime (kB/sec): (3561355/15931)
IV size: 8 bytes
replay detection support: Y
Anti replay bitmap:
0x00000000 0x00000001
ASA5505MAN#
07-29-2013 07:03 AM
Can anybody help with this question?
01-28-2014 06:17 AM
You may need to enable NAT Traversal. Type the following command.
CRYPTO ISAKMP NAT-TRAVERSAL 30
More in depth info here:
http://supertekboy.com/2014/01/28/cisco-vpn-connects-but-cannot-access-inside-resources/
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