This will probably be a problem with your NAT Traversal.
Try adding either this line:
isakmp nat-traversal 20
or
crypto isakmp nat-traversal 20
(depending on pre or post OS version 7.2)
If it doesn't help the config would be helpfull.
JG
Hi,
I have setup a VPN on our Cisco ASA 5520 but seem to be having an issue.
When I connect from the client it goes through Phase 1 and Phase 2 fine, no problems.
It accepts my username and password fine. I show on the ASA as being connected.
The issue is though that I cant ping through the tunnel or actaully send any data through the VPN, it looks that data isnt being encrypted or making it through.
When I check status on the VPN client it shows
Bytes received= 0
Bytes Sent = 8454
Packets Encrypted = 99
Packets Decrypted = 0
etc
While on the ASA side
Bytes Tx = 960
#pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0
#pkts decaps: 111, #pkts decrypt: 111, #pkts verify: 111
It's as if traffic isnt being picking up by the cryptomap.
If anybody has any high level ideas id appreciate them or if anybody can help il gladly post some sanitized configs.
Thanks
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
@Jay, I think I see it a little differently
I interpret the decaps on the asa without encaps to indicate that traffic is being received by the asa over the secure channel but that is it not going out it.
As a test connect a client and from behind the ASA try to ping the client's secure IP address. my guess is that the debugs will show that the traffic is going out the default route and not going over the secure channel because it is not matching the interesting traffic on the NAT0 acl. or the access-list in the crypto map id incorrect.
please post a clean version of your vpn config with the ACLs, the crypto maps, and the nat commands.
we should be able to get to the bottom of this pretty quickly with the running config.
-t
Hi,
Thanks you all for your suggestions. I have had to put this issue on the back burner for the last number of weeks, but I am back to it now :-(
I've included the sanitized config below, I've removed some ACL's which I hope doesn't create added confusion.
It is indeed a remote access VPN. I have some questions though. How do I know which ACL defines interesting traffic for my VPN? How do the nat (inside) statements get processed?
Config:
ASA Version 7.0(8)
!
hostname *******
domain-name i*********
names
dns-guard
!
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address 84.XX.YY.98 255.255.255.0
!
interface GigabitEthernet0/1
nameif inside
security-level 100
ip address 10.xx.yy.zz 255.255.255.0
!
interface GigabitEthernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
nameif management
security-level 100
ip address 192.168.1.1 255.255.255.0
management-only
!
banner login
banner motd ****Unauthorized Users Logoff Immediately******
no ftp mode passive
clock timezone GMT/IST 0
clock summer-time GMT/IDT recurring last Sun Mar 1:00 last Sun Oct 2:00
object-group service HTTPHTTPS tcp
port-object eq www
port-object eq https
object-group service thG tcp
description three Service Group
port-object range 60510 60510
port-object eq www
port-object eq https
object-group service Pup tcp
port-object eq echo
port-object eq www
port-object range 6969 6969
port-object eq ssh
port-object eq ftp-data
port-object eq rsh
port-object eq https
port-object eq ftp
port-object range 60510 60510
port-object range 11110 11112
object-group service EamonnF tcp
port-object eq telnet
port-object eq www
port-object eq https
port-object eq ftp
object-group service P tcp
port-object range 5900 5900
object-group service UC tcp
port-object range 5910 5910
object-group service AB tcp
port-object range 5911 5911
object-group service R00 tcp
port-object range 2200 2200
object-group service PB tcp
description Access 10.0.xx.yy
port-object eq 5900
port-object eq 5800
object-group service Ud tcp
port-object eq 5910
port-object eq 5810
access-list inside_nat0_outbound extended permit ip xx.yy.zz.0 255.255.255.0 192.NN.RR.48 255.255.255.240
access-list inside_nat0_outbound extended permit ip xx.yy.zz.0 255.255.255.0 192.SS.YY.64255.255.255.24
access-list inside_nat0_outbound extended permit ip 10.HH.GG.SS 255.255.255.0 192.NN.RR.48 255.255.255.240
access-list inside_nat0_outbound extended permit ip 10.HH.GG.SS 255.255.255.0 192.SS.YY.64255.255.255.24
access-list inside_nat0_outbound extended permit ip xx.yy.zz.0 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.HH.GG.SS 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.SS.LL.EE 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.AA.BB.CC 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.SS.GG.DD 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip xx.yy.zz.0 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.AA.JJ.XX 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip 10.HH.BB.FF 255.255.255.0 10.AA.BB.CC 255.255.255.0
access-list inside_nat0_outbound extended permit ip xx.yy.zz.192 255.255.255.248 host 172.FF.GG.13
access-list outside_cryptomap_20 extended permit ip 84.XX.RR.0 255.255.255.0 192.NN.RR.48 255.255.255.240
access-list outside_cryptomap_20 extended permit ip 84.XX.RR.0 255.255.255.0 192.SS.YY.64255.255.255.24
access-list NO_NAT extended permit ip xx.yy.zz.0 255.255.255.0 192.NN.RR.48 255.255.255.240
access-list NO_NAT extended permit ip xx.yy.zz.0 255.255.255.0 192.SS.YY.64255.255.255.24
access-list NO_NAT extended permit ip 10.HH.GG.SS 255.255.255.0 192.NN.RR.48 255.255.255.240
access-list NO_NAT extended permit ip 10.HH.GG.SS 255.255.255.0 192.SS.YY.64255.255.255.24
access-list NO_NAT extended permit ip xx.yy.zz.0 255.255.255.0 host 172.FF.GG.13
access-list NO_NAT extended permit ip xx.yy.zz.0 255.255.255.0 10.RR.dd.EE 255.255.255.0
access-list NO_NAT extended permit ip 10.HH.GG.SS 255.255.255.0 10.RR.dd.EE 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit xx.yy.zz.0 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit 10.HH.GG.SS 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit xx.yy.zz.0 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit 10.AA.JJ.XX 255.255.255.0
access-list inside_nat0_outbound_V1 extended permit ip xx.yy.zz.0 255.255.255.0 host 192.SS.LL.40
access-list inside_nat0_outbound_V1 extended permit ip 10.HH.GG.SS 255.255.255.0 host 192.SS.LL.40
access-list inside_nat0_outbound_V2 extended permit ip xx.yy.zz.0 255.255.255.0 host 192.SS.LL.40
access-list inside_nat0_outbound_V2 extended permit ip 10.HH.GG.SS 255.255.255.0 host 192.SS.LL.40
access-list inside_nat0_outbound_V3 extended permit ip 10.HH.GG.SS 255.255.255.0 host 192.SS.LL.40
access-list inside_nat0_outbound_V3 extended permit ip xx.yy.zz.0 255.255.255.0 host 192.SS.LL.40
access-list outside_cryptomap_40_1 extended permit ip host 84.203.232.99 host 192.SS.LL.40
access-list outside_cryptomap_40_1 extended permit ip host 84.203.232.99 host 192.125.241.42
access-list VF_NAT extended permit ip xx.yy.zz.0 255.255.255.0 host 192.SS.LL.40
access-list VF_NAT extended permit ip xx.yy.zz.0 255.255.255.0 host 192.125.241.42
access-list VF_NAT extended permit ip 10.HH.GG.SS 255.255.255.0 host 192.SS.LL.40
access-list VF_NAT extended permit ip 10.HH.GG.SS 255.255.255.0 host 192.125.241.42
access-list inside_pnat_inbound_V1 extended permit ip xx.yy.zz.0 255.255.255.0 host 172.AA.DD.182
access-list inside_pnat_inbound_V2 extended permit ip xx.yy.zz.0 255.255.255.0 host 172.AA.DD.182
access-list inside_pnat_inbound_V3 extended permit ip xx.yy.zz.0 255.255.255.0 host 172.AA.DD.182
access-list inside_pnat_inbound_V4 extended permit ip any any
access-list outisde_cryptomap_60_1 extended permit ip host 84.203.232.100 host 217.SS.EE.188
access-list no-nat extended permit ip 10.7.7.0 255.255.255.0 172.18.1.0 255.255.255.0
access-list outisde_cryptomap_60 extended permit ip host 84.203.232.100 host 217.SS.EE.188
access-list THREE_NAT extended permit ip xx.yy.zz.0 255.255.255.0 host 217.SS.EE.188
access-list THREE_NAT extended permit ip 10.HH.GG.SS 255.255.255.0 host 217.SS.EE.188
access-list outside_cryptomap_THREE extended permit ip host 84.203.232.100 host 217.SS.EE.188
access-list inside_nat0_outbound_V4 extended permit ip xx.yy.zz.192 255.255.255.248 host 172.FF.GG.13
access-list inside_nat0_outbound_V4 extended permit ip any 10.RR.dd.EE 255.255.255.128
access-list inside_nat0_outbound_V4 extended permit ip xx.yy.zz.0 255.255.255.0 10.RR.dd.EE 255.255.255.128
access-list inside_nat0_outbound_V4 extended permit ip 10.HH.GG.SS 255.255.255.0 10.RR.dd.EE 255.255.255.128
access-list outside_cryptomap_80 extended permit ip xx.yy.zz.192 255.255.255.248 host 172.FF.GG.13
pager lines 24
logging enable
logging list EMail level debugging class email
logging list Deny106023 message 106023
logging list VPNClientTraffic level debugging class vpnc
logging list VPN_IKE_IPSEC level debugging class vpn
logging trap notifications
logging asdm debugging
logging from-address ppower@rigneydolphin.ie
logging recipient-address ppower@rigneydolphin.ie level emergencies
logging host inside xx.yy.zz.5 17/55555
mtu outside 1500
mtu inside 1500
mtu management 1500
ip local pool VPNpool 10.0.14.50-10.0.14.100 mask 255.255.255.0
no failover
monitor-interface outside
monitor-interface inside
monitor-interface management
icmp deny any outside
icmp permit any inside
asdm image disk0:/asdm-508.bin
no asdm history enable
arp timeout 14400
global (outside) 10 interface
global (outside) 20 84.XX.YY.99
global (outside) 30 84.XX.YY.100
nat (inside) 0 access-list inside_nat0_outbound_V4
nat (inside) 20 access-list VF_NAT
nat (inside) 30 access-list THREE_NAT
nat (inside) 10 0.0.0.0 0.0.0.0
static (inside,outside) tcp 84.203.232.102 smtp xx.yy.zz.35 smtp netmask 255.255.255.255
static (inside,outside) tcp interface imap4 xx.yy.zz.9 imap4 netmask 255.255.255.255
static (inside,outside) tcp interface smtp xx.yy.zz.9 smtp netmask 255.255.255.255
static (inside,outside) tcp interface www xx.yy.zz.16 www netmask 255.255.255.255
static (inside,outside) tcp interface telnet xx.yy.zz.14 telnet netmask 255.255.255.255
static (inside,outside) tcp interface 5902 xx.yy.zz.33 5902 netmask 255.255.255.255
static (inside,outside) tcp interface ftp xx.yy.zz.8 ftp netmask 255.255.255.255
static (inside,outside) tcp 84.203.232.101 www xx.yy.zz.8 www netmask 255.255.255.255
static (inside,outside) tcp interface 7000 xx.yy.zz.8 7000 netmask 255.255.255.255
static (inside,outside) tcp interface 11111 xx.yy.zz.140 11111 netmask 255.255.255.255
static (inside,outside) tcp interface 5800 xx.yy.zz.17 5800 netmask 255.255.255.255
static (inside,outside) tcp interface 5000 xx.yy.zz.216 5000 netmask 255.255.255.255
static (inside,outside) tcp interface 5910 10.0.25.12 5910 netmask 255.255.255.255
static (inside,outside) tcp interface 5911 xx.yy.zz.36 5911 netmask 255.255.255.255
static (inside,outside) tcp interface 5900 xx.yy.zz.17 5900 netmask 255.255.255.255
static (inside,outside) tcp interface 5810 10.0.25.12 5810 netmask 255.255.255.255
static (inside,outside) tcp 84.203.232.108 ssh xx.yy.zz.9 ssh netmask 255.255.255.255
static (inside,outside) tcp interface ssh xx.yy.zz.100 ssh netmask 255.255.255.255
access-group outside_access_in in interface outside
access-group inside_access_in in interface inside
route outside 10.RR.dd.EE 255.255.255.0 84.203.232.97 1
route outside 0.0.0.0 0.0.0.0 84.XX.YY.97 1
route inside 10.10.10.0 255.255.255.0 xx.yy.zz.11 1
route inside 10.0.0.0 255.255.0.0 xx.yy.zz.11 1
route inside 10.118.180.0 255.255.255.0 xx.yy.zz.11 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
timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
group-policy DfltGrpPolicy attributes
banner none
wins-server none
dns-server none
dhcp-network-scope none
vpn-access-hours none
vpn-simultaneous-logins 3
vpn-idle-timeout none
vpn-session-timeout none
vpn-filter none
vpn-tunnel-protocol IPSec webvpn
password-storage disable
ip-comp disable
re-xauth disable
group-lock none
pfs disable
ipsec-udp disable
ipsec-udp-port 10000
split-tunnel-policy tunnelall
split-tunnel-network-list none
default-domain none
split-dns none
secure-unit-authentication
user-authentication disable
user-authentication-idle-t
ip-phone-bypass disable
leap-bypass disable
nem disable
backup-servers keep-client-config
client-firewall none
client-access-rule none
webvpn
functions url-entry
port-forward-name value Application Access
group-policy RDGVPN internal
group-policy RDGVPN attributes
wins-server value xx.yy.zz.8 xx.yy.zz.25
dns-server value xx.yy.zz.25 xx.yy.zz.8
split-tunnel-policy tunnelspecified
split-tunnel-network-list value RDGVPN_splitTunnelAcl
default-domain value iota.local
webvpn
username paddy password MGw7SEoIbk2881cu encrypted privilege 15
username acurtis password E04klAFyzTZnUUcg encrypted privilege 15
username acurtis attributes
vpn-group-policy DfltGrpPolicy
webvpn
username punit password S4RWteIFsrKNdrRp encrypted privilege 0
username punit attributes
vpn-group-policy RDGVPN
webvpn
http server enable
http xx.yy.zz.0 255.255.255.0 inside
http 192.168.1.0 255.255.255.0 management
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-SHA
crypto dynamic-map outside_dyn_map 20 set security-association lifetime seconds 28800
crypto dynamic-map outside_dyn_map 20 set security-association lifetime kilobytes 4608000
crypto dynamic-map outside_dyn_map 40 set transform-set ESP-3DES-SHA
crypto dynamic-map outside_dyn_map 40 set security-association lifetime seconds 28800
crypto dynamic-map outside_dyn_map 40 set security-association lifetime kilobytes 4608000
crypto dynamic-map outside_dyn_map 60 set transform-set ESP-3DES-SHA
crypto dynamic-map outside_dyn_map 60 set security-association lifetime seconds 28800
crypto dynamic-map outside_dyn_map 60 set security-association lifetime kilobytes 4608000
crypto map outside_map 20 match address outside_cryptomap_20
crypto map outside_map 20 set peer 82.HH.JJ.199
crypto map outside_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 20 set security-association lifetime seconds 28800
crypto map outside_map 20 set security-association lifetime kilobytes 4608000
crypto map outside_map 40 match address outside_cryptomap_40_1
crypto map outside_map 40 set peer 213.KK.DD.244
crypto map outside_map 40 set transform-set ESP-3DES-SHA
crypto map outside_map 40 set security-association lifetime seconds 28800
crypto map outside_map 40 set security-association lifetime kilobytes 4608000
crypto map outside_map 60 match address outside_cryptomap_THREE
crypto map outside_map 60 set peer 217.FF.GG.241
crypto map outside_map 60 set transform-set ESP-3DES-SHA
crypto map outside_map 60 set security-association lifetime seconds 28800
crypto map outside_map 60 set security-association lifetime kilobytes 4608000
crypto map outside_map 80 match address outside_cryptomap_80
crypto map outside_map 80 set peer 213.TT.FF.130
crypto map outside_map 80 set transform-set ESP-DES-MD5
crypto map outside_map 80 set security-association lifetime seconds 28800
crypto map outside_map 80 set security-association lifetime kilobytes 4608000
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
crypto map crypto_three 70 set security-association lifetime seconds 28800
crypto map crypto_three 70 set security-association lifetime kilobytes 4608000
isakmp enable outside
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption 3des
isakmp policy 10 hash sha
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
isakmp policy 30 authentication pre-share
isakmp policy 30 encryption des
isakmp policy 30 hash sha
isakmp policy 30 group 2
isakmp policy 30 lifetime 86400
isakmp policy 50 authentication pre-share
isakmp policy 50 encryption des
isakmp policy 50 hash md5
isakmp policy 50 group 2
isakmp policy 50 lifetime 86400
isakmp nat-traversal 20
tunnel-group 82.HH.JJ.199 type ipsec-l2l
tunnel-group 82.HH.JJ.199 ipsec-attributes
pre-shared-key *
tunnel-group 213.KK.DD.244 type ipsec-l2l
tunnel-group 213.KK.DD.244 ipsec-attributes
pre-shared-key *
tunnel-group 217.FF.GG.241 type ipsec-l2l
tunnel-group 217.FF.GG.241 ipsec-attributes
pre-shared-key *
tunnel-group 213.TT.FF.130 type ipsec-l2l
tunnel-group 213.TT.FF.130 ipsec-attributes
pre-shared-key *
tunnel-group RDGVPN type ipsec-ra
tunnel-group RDGVPN general-attributes
address-pool (inside) VPNpool
address-pool VPNpool
default-group-policy RDGVPN
tunnel-group RDGVPN ipsec-attributes
pre-shared-key *
telnet xx.yy.zz.0 255.255.255.0 inside
telnet 192.168.1.0 255.255.255.0 management
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd lease 3600
dhcpd ping_timeout 50
dhcpd enable management
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map global_policy
class inspection_default
inspect dns maximum-length 512
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
!
service-policy global_policy global
ntp server xx.yy.zz.11
tftp-server inside xx.yy.zz.30 test1016.cfg
smtp-server xx.yy.zz.9
Cryptochecksum:
I have some questions though. How do I know which ACL defines interesting traffic for my VPN?
the acls of interest for your issue are the following
split-tunnel-network-list value RDGVPN_splitTunnelAcl, which is:
access-list RDGVPN_splitTunnelAcl standard permit xx.yy.zz.0 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit 10.HH.GG.SS 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit xx.yy.zz.0 255.255.255.0
access-list RDGVPN_splitTunnelAcl standard permit 10.AA.JJ.XX 255.255.255.0
and the identity nat:
nat (inside) 0 access-list inside_nat0_outbound_V4, which is:
access-list inside_nat0_outbound_V4 extended permit ip xx.yy.zz.192 255.255.255.248 host 172.FF.GG.13
access-list inside_nat0_outbound_V4 extended permit ip any 10.RR.dd.EE 255.255.255.128
access-list inside_nat0_outbound_V4 extended permit ip xx.yy.zz.0 255.255.255.0 10.RR.dd.EE 255.255.255.128
access-list inside_nat0_outbound_V4 extended permit ip 10.HH.GG.SS 255.255.255.0 10.RR.dd.EE 255.255.255.128
for this to work you have to have something in the identity nat that says traffic from the networks in the split tunnel are allowed to go to the range 10.0.14.0/24
like:
access-list inside_nat0_outbound_V4 extended permit ip xx.yy.zz.0 255.255.255.0 10.0.14.0 255.255.255.0
this makes it so that traffic is not translated on the outside interface and is routed over the tunnel.
How do the nat (inside) statements get processed?
this has no bearing on the vpn because the hosts are considered an extension of the network.
hope this helps,
-t
Business Accounts
Answer for Membership
by: MikeKanePosted on 2009-07-30 at 10:41:34ID: 24982349
Is this a site 2 site connection or client to site connection? If its client, are you using the VPN client or the anyconnect client? What version of ASA code are you running?
Post the config and we can have a look.