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Cisco ASA 5505 remote vpn problem

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5 replies

by kraszilaci

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Hi!

I have bought a new ASA and tried to configure remote vpnaccess for it. Actually the vpn goes and i can reach the inside interface but i cant reach the inside network. Could maybe somebody give me a hint about my misconfiguration?

Below is the config:

: Saved
:
ASA Version 7.2(2)
!
hostname homeasa
enable password *** 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 pppoe 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
!
passwd *** encrypted
ftp mode passive
same-security-traffic permit intra-interface
access-list 109 extended permit tcp any interface outside eq 6881
access-list 109 extended permit udp any interface outside eq 6881
access-list vpntunel standard permit 192.168.1.0 255.255.255.0
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
ip local pool vpnpool 192.168.0.200-192.168.0.210 mask 255.255.255.0
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
static (inside,outside) tcp interface 6881 192.168.1.2 6881 netmask 255.255.255.255
static (inside,outside) udp interface 6881 192.168.1.2 6881 netmask 255.255.255.255
access-group 109 in interface outside
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
group-policy homevpn internal
group-policy homevpn attributes
vpn-idle-timeout 30
vpn-tunnel-protocol IPSec
split-tunnel-policy tunnelspecified
split-tunnel-network-list value vpntunel
username fadsl1259@xxxx.hu password *** encrypted
username home password *** encrypted
aaa authentication ssh console LOCAL
http server enable
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 dynamic-map outside_dyn_map 10 set transform-set ESP-3DES-SHA
crypto dynamic-map outside_dyn_map 10 set security-association lifetime seconds 288000
crypto map outside_map 10 ipsec-isakmp dynamic outside_dyn_map
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 homevpn type ipsec-ra
tunnel-group homevpn general-attributes
address-pool vpnpool
tunnel-group homevpn ipsec-attributes
pre-shared-key *
isakmp ikev1-user-authentication none
telnet timeout 5
ssh 192.168.1.0 255.255.255.0 inside
ssh 0.0.0.0 0.0.0.0 outside
ssh timeout 30
console timeout 0
vpdn group interweb request dialout pppoe
vpdn group interweb localname fadsl@xxxx.hu
vpdn group interweb ppp authentication pap
vpdn username fadsl@xxxx.hu password ********* store-local
dhcpd auto_config outside
!
dhcpd address 192.168.1.2-192.168.1.33 inside
dhcpd enable inside
!

!
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:4b85275552a7f8ad54cc1
: end

Thanks in advance for help!

5 replies

by ryanr

with just a quick overview I notice you have no NAT exclusions for your VPN pool

ie missing
NAT (inside) 0 access-list "ACCESS-LIST NAME"
you are then missing an access list that looks similar to:
access-list "ACCESS-LIST NAME" extended permit ip any 192.168.0.200 255.255.255.224

the subnet may be incorrect in the access list. Ive never been real confident with that stuff.

192.168.0.0 255.255.255.0 will get everything in 192.168.0.x you are not using that range internally only for your pool.

if you were to use ASDM to configure your access list would probably be named inside_nat0_outbound. I make a habit of using the autogenerated names even though I configure with comand line.

I found this post while looking for an answer. just trying to help out. - take care

Additionally: confirm that you are not trying to connect to a network that has the same IP range as the network you are already on. you could end up with a routing issue because the two networks apear to be the same.

by ryanr

also missing: crypto isakmp nat-traversal 20

by mikeindo

i didnt see a 'route inside' statement. do you have subnets and subsequently a layer-3 switch or router at the next hop in? maybe not if this is a home setup...

by jheye

check the Firmware of the ASA if it ist K8 or K9. We get a K9 bundle last month, but installed and also on the Cisco CD was only K8. Then a VPN with 3DES don't work.

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