VPN L2TP con client Microsoft Windows XP

metalgalle · gio 03 lug , 2008 8:58 pm

Ciao a tutti,
sto impazzendo per far funzionare la VPN in oggetto (maledetto cliente che non vuole usare il client cisco...).

In definitiva, dopo aver fatto mille tentativi e varie configurazione prese da sito cisco & c. sono al punto in cui finalmente ho il client che manda le richieste UDP da IP xxx.xxx.xxx.xxx/1701 al mio caro ASA/1701, il quale continua a droppare le connessioni nonostante le abbia debitamente autorizzate con le ACL del caso.

Codice: Seleziona tutto

7	Jul 03 2008	21:47:09	710005	xxx.xxx.xxx.xxx	xxx.xxx.xxx.xxx	 UDP request discarded from xxx.xxx.xxx.xxx/1701 to outside:xxx.xxx.xxx.xxx/1701

Codice: Seleziona tutto

access-list outside_access_in extended permit udp any interface outside eq 1701 log notifications

Ho rifatto la config della VPN con lo step-by-step di cisco decine di volte, ormai sono sicuro che sia giusta...

Ma perchecacchio l'ASA mi continua a droppare i pacchetti destinati alla 1701 UDP??????

Help, please!!!

Grazie a tutti in anticipo!

Wizard · ven 04 lug , 2008 3:02 pm

Prova a farci vedere la config

metalgalle · sab 05 lug , 2008 8:17 am

Wizard ha scritto:Prova a farci vedere la config

Pronti!

Codice: Seleziona tutto

Result of the command: "show run"

: Saved
:
ASA Version 7.2(3) 
!
hostname FWBernareggi
domain-name bernareggi.local
enable password yyy encrypted
names
name 192.168.45.202 SERVER-IDEA description Server Idea Azienda
!
interface Vlan1
 nameif inside
 security-level 100
 ip address 192.168.45.253 255.255.255.0 
!
interface Vlan2
 nameif outside
 security-level 0
 ip address 192.168.1.254 255.255.255.0 
!
interface Vlan3
 shutdown
 nameif dmz
 security-level 50
 no ip address
!
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 zzz encrypted
ftp mode passive
clock timezone CEST 1
clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00
dns domain-lookup inside
dns server-group DefaultDNS
 name-server SERVER-IDEA
 domain-name bernareggi.local
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
access-list Bernareggi_splitTunnelAcl standard permit 192.168.45.0 255.255.255.0 
access-list inside_nat0_outbound extended permit ip 192.168.45.0 255.255.255.0 172.31.254.0 255.255.255.0 
access-list inside_access_in extended permit ip 192.168.45.0 255.255.255.0 any 
access-list outside_access_in extended permit tcp any host 192.168.1.254 eq https log notifications 
access-list outside_access_in extended permit tcp any host 192.168.1.254 eq ssh log notifications 
access-list outside_access_in extended permit udp any interface outside eq 1701 log notifications 
access-list Crypto_Map_VPN_Dialer extended permit ip 172.31.254.0 255.255.255.0 192.168.45.0 255.255.255.0 
pager lines 24
logging enable
logging timestamp
logging trap informational
logging asdm debugging
logging host inside SERVER-IDEA
mtu inside 1500
mtu outside 1500
mtu dmz 1500
ip local pool VPN_Dialer 172.31.254.100 mask 255.255.255.0
no failover
monitor-interface inside
monitor-interface outside
monitor-interface dmz
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-523.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound
nat (inside) 1 0.0.0.0 0.0.0.0
access-group inside_access_in in interface inside
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 192.168.1.1 10
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
ldap attribute-map BannerMap
  map-name  department cVPN3000-IETF-Radius-Class
aaa-server IAS_Bernareggi protocol radius
aaa-server IAS_Bernareggi host SERVER-IDEA
 key FWBernareggi
aaa-server LDAP_Bernareggi protocol ldap
aaa-server LDAP_Bernareggi host SERVER-IDEA
 ldap-base-dn dc=bernareggi,dc=local
 ldap-scope subtree
 ldap-naming-attribute sAMAccountName
 ldap-login-password *
 ldap-login-dn cn=administrator,cn=users,dc=bernareggi, dc=local
 server-type microsoft
 ldap-attribute-map BannerMap
aaa authentication enable console IAS_Bernareggi LOCAL
aaa authentication serial console IAS_Bernareggi LOCAL
aaa authentication ssh console IAS_Bernareggi LOCAL
aaa authentication telnet console IAS_Bernareggi LOCAL
aaa authentication http console IAS_Bernareggi LOCAL
http server enable 444
http 0.0.0.0 0.0.0.0 outside
http 0.0.0.0 0.0.0.0 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 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 transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac 
crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac 
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac 
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac 
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac 
crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac 
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac 
crypto ipsec transform-set TRANS_ESP_3DES_MD5 esp-3des esp-md5-hmac 
crypto ipsec transform-set TRANS_ESP_3DES_MD5 mode transport
crypto dynamic-map outside_dyn_map 10 set transform-set TRANS_ESP_3DES_MD5
crypto map outside_map 65535 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 md5
 group 2
 lifetime 86400
crypto isakmp nat-traversal  60
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 inside
ssh 0.0.0.0 0.0.0.0 outside
ssh timeout 5
console timeout 0
l2tp tunnel hello 30
dhcpd auto_config outside
!
dhcpd address 192.168.45.254-192.168.45.254 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
ntp server SERVER-IDEA source inside prefer
webvpn
 enable outside
 svc image disk0:/sslclient-win-1.1.0.154.pkg 1
 svc enable
 port-forward Administrative_Access 33001 192.168.45.202 3389 Server-Idea TS
 port-forward Administrative_Access 33002 192.168.45.201 3389 Server-Marche TS
 port-forward Client_Access 33003 192.168.45.213 3389 WS-Emiliano TS
 port-forward Client_Access 33005 192.168.45.142 3389 EMI TS
 port-forward Client_Access 33004 192.168.45.222 3389 BRIO TS
 port-forward Client_Access 33007 192.168.45.121 3389 KAPPA TS
 port-forward Client_Access 33006 192.168.45.144 3389 JOEL TS
 port-forward Client_Access 33020 192.168.45.145 3389 WS-STEFY TS
 port-forward Client_Access 33010 192.168.45.73 3389 PC-BOLI TS
 port-forward Client_Access 33009 192.168.45.61 3389 MIND TS
 port-forward Client_Access 33008 192.168.45.139 3389 MICKY TS
 port-forward Client_Access 33019 192.168.45.54 3389 WS-RAMONA TS
 port-forward Client_Access 33018 192.168.45.153 3389 WS-PIERA
 port-forward Client_Access 33017 192.168.45.30 3389 WS-GIOEL TS
 port-forward Client_Access 33016 192.168.45.214 3389 WS-BOLI TS
 port-forward Client_Access 33015 192.168.45.45 3389 STEFY TS
 port-forward Client_Access 33014 192.168.45.125 3389 PCMARCHE TS
 port-forward Client_Access 33013 192.168.45.152 3389 PC_PIERA TS
 port-forward Client_Access 33012 192.168.45.220 3389 PC-MATTEO TS
 port-forward Client_Access 33011 192.168.45.120 3389 PC_GIOEL TS
group-policy WebVPNFullAccess internal
group-policy WebVPNFullAccess attributes
 vpn-tunnel-protocol webvpn
 webvpn
  functions url-entry file-access file-entry file-browsing port-forward auto-download
  port-forward value Administrative_Access
group-policy WebVPNClientAccess internal
group-policy WebVPNClientAccess attributes
 vpn-tunnel-protocol webvpn
 webvpn
  functions file-access file-browsing port-forward
  port-forward value Client_Access
group-policy DfltGrpPolicy attributes
 banner none
 wins-server value 192.168.45.202
 dns-server value 192.168.45.202
 dhcp-network-scope none
 vpn-access-hours none
 vpn-simultaneous-logins 3
 vpn-idle-timeout 30
 vpn-session-timeout none
 vpn-filter none
 vpn-tunnel-protocol IPSec l2tp-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 value bernareggi.local
 split-dns none
 intercept-dhcp 255.255.255.255 disable
 secure-unit-authentication disable
 user-authentication disable
 user-authentication-idle-timeout 30
 ip-phone-bypass disable
 leap-bypass disable
 nem disable
 backup-servers keep-client-config
 msie-proxy server none
 msie-proxy method no-proxy
 msie-proxy except-list none
 msie-proxy local-bypass disable
 nac disable
 nac-sq-period 300
 nac-reval-period 36000
 nac-default-acl none
 address-pools value VPN_Dialer
 smartcard-removal-disconnect enable
 client-firewall none
 client-access-rule none
 webvpn
  functions url-entry
  html-content-filter none
  homepage none
  keep-alive-ignore 4
  http-comp gzip
  filter none
  url-list none
  customization value DfltCustomization
  port-forward none
  port-forward-name value Application Access
  sso-server none
  deny-message value Login was successful, but because certain criteria have not been met or due to some specific group policy, you do not have permission to use any of the VPN features. Contact your IT administrator for more information
  svc enable
  svc keep-installer installed
  svc keepalive none
  svc rekey time none
  svc rekey method none
  svc dpd-interval client none
  svc dpd-interval gateway none
  svc compression deflate
group-policy Bernareggi internal
group-policy Bernareggi attributes
 wins-server value 192.168.45.202
 dns-server value 192.168.45.202
 vpn-filter value Crypto_Map_VPN_Dialer
 vpn-tunnel-protocol IPSec 
 split-tunnel-policy tunnelspecified
 split-tunnel-network-list value Bernareggi_splitTunnelAcl
 default-domain value bernareggi.local
 address-pools value VPN_Dialer
 webvpn
  functions file-access file-entry file-browsing port-forward auto-download
  port-forward value Administrative_Access
  svc enable
  svc keep-installer installed
  svc keepalive 20
  svc compression none
username root password xxx nt-encrypted privilege 15
tunnel-group DefaultRAGroup general-attributes
 address-pool VPN_Dialer
tunnel-group DefaultRAGroup ipsec-attributes
 pre-shared-key *
 isakmp keepalive disable
tunnel-group DefaultRAGroup ppp-attributes
 no authentication chap
 authentication ms-chap-v2
tunnel-group DefaultWEBVPNGroup general-attributes
 authentication-server-group LDAP_Bernareggi
tunnel-group Bernareggi type ipsec-ra
tunnel-group Bernareggi general-attributes
 address-pool VPN_Dialer
 authentication-server-group IAS_Bernareggi LOCAL
 default-group-policy Bernareggi
tunnel-group Bernareggi ipsec-attributes
 pre-shared-key *
no tunnel-group-map enable ou
no tunnel-group-map enable ike-id
no tunnel-group-map enable peer-ip
prompt hostname context 
no compression svc http-comp

venon2k · dom 14 set , 2008 5:08 pm

Apri il regedit, vai a

HKLM\SYSTEM\CurrentControlSet\Services\RasMan\Parameters

Crea un valore DWORD nominato esattamente così ProhibitIpSec

dopodichè imposti il valore dword ad 1

Riavvia il computer.

Prova così ...

VPN L2TP con client Microsoft Windows XP

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