tunnel ok, vpn no

[alessandro.rinaldi]

buongiorno a tutti,
ho configurato un ASA pe poter accedere da remoto tramite client vpn Cisco ad una rete di un mio cliente
Quando attivo il vpn client la connessione viene effettuata, mi viene rilasciato un IP corretto dal local pool ma non riesco a vedere o raggiungere nulla della rete alla quale sono connesso.
faccio presente che ho a disposizione dei routers tramite i quali ho simulato in casa una WAN attraverso la quale attivo la vpn e riesco a pingare un IP della rete di destinazione.
Non riesco a capire cosa cambia tra una simulazione in locale e la realtà.
Qualcuno ha dei suggerimenti ??


Allego la configurazione dell'ASA


ciscoasa# sh run
: Saved
:
ASA Version 8.0(2)
!
hostname ciscoasa
enable password LG46qRzLC7Dc6IbV encrypted
names
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.51.253 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 88.42.80.173 255.255.255.248
!
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 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
access-list inside_nat0_outbound extended permit ip any 192.168.51.224 255.255.255.224
access-list icmpacl extended permit icmp any any
access-list icmpacl extended permit icmp any any echo-reply
access-list icmpacl extended permit icmp any any source-quench
access-list icmpacl extended permit icmp any any unreachable
pager lines 24
logging asdm informational
mtu outside 1500
mtu inside 1500
ip local pool vpnpool123 192.168.51.230-192.168.51.240 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-602.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 icmpacl in interface outside
route outside 0.0.0.0 0.0.0.0 88.42.80.169 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 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
dynamic-access-policy-record DfltAccessPolicy
http server enable
http 192.168.51.0 255.255.255.0 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 ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
crypto ipsec transform-set ESP-3DES-MD5 esp-3des 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 dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set pfs
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_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
no crypto isakmp nat-traversal
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!

threat-detection basic-threat
threat-detection statistics access-list
!
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
group-policy group123 internal
group-policy group123 attributes
vpn-tunnel-protocol IPSec
username user123 password hf1lj.KZjL2O5E/T encrypted privilege 0
username user123 attributes
vpn-group-policy group123
tunnel-group group123 type remote-access
tunnel-group group123 general-attributes
address-pool vpnpool123
default-group-policy group123
tunnel-group group123 ipsec-attributes
pre-shared-key *
prompt hostname context
Cryptochecksum:caf20f455b7fe16d88b7d4b3f0970716
: end

ciscoasa#



grazie mille

Alessandro Rinaldi

[Wizard]

crypto isakmp nat-traversal 21

[alessandro.rinaldi]

grazie, domani ci provo e faccio sapere

Alessandro

[alessandro.rinaldi]

buongiorno,

ho inserito il comando come consigliato ma riscontro sempre lo stesso problema:vedo la vpn connettersi, mi viene rilasciato un IP del local pool,
ma non riesco a fare nulla.

Si accettano altri consigli

grazie

Alessandro

[Wizard]

Guarda questa config sicuramente funzionante:

Codice: Seleziona tutto

crypto isakmp enable outside

access-list remoti-as400_SPLIT standard permit host 129.6.75.1

username *** password **** encrypted privilege 0
username *** attributes
vpn-group-policy remoti-as400
group-lock value remoti-as400

ip local pool vpn-pool 129.6.75.110-129.6.75.120

group-policy remoti-as400 internal
group-policy remoti-as400 attributes

vpn-tunnel-protocol IPSec

split-tunnel-policy tunnelspecified
split-tunnel-network-list value remoti-as400_SPLIT

tunnel-group remoti-as400 type ipsec-ra
tunnel-group remoti-as400 general-attributes
default-group-policy remoti-as400
address-pool  vpn-pool
tunnel-group remoti-as400 ipsec-attributes
pre-shared-key ****

crypto isakmp policy 10 authen pre-share
crypto isakmp policy 10 encrypt 3des
crypto isakmp policy 10 hash md5
crypto isakmp policy 10 group 2
crypto isakmp policy 10 lifetime 86400
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 set pfs
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface  outside

crypto isakmp nat-traversal 20
crypto isakmp disconnect-notify
crypto isakmp reload-wait
vpn-sessiondb max-session-limit  10

access-list NAT0-ACL remark *** NAT0 PER VPN CLIENT ***
access-list NAT0-ACL extended permit ip 129.6.75.0 255.255.255.0 129.6.75.0 255.255.255.0
nat (inside) 0 access-list NAT0-ACL

### CONFIG DEFAULT POLICY ###

group-policy DfltGrpPolicy attributes
vpn-idle-timeout none
vpn-simultaneous-logins 10
split-dns value ***
dns-server value ***
default-domain value ***
banner none
banner value ****************************************************************
banner value ---------------------------------------------------------------
banner value 		VPN AZIENDALE ***
banner value ---------------------------------------------------------------
banner value WARNING: System is RESTRICTED to authorized personnel ONLY!
banner value Unauthorized use of this system will be logged and
banner value prosecuted to the fullest extent of the law.
banner value If you are NOT authorized to use this system, LOG OFF NOW!
banner value ****************************************************************

[alessandro.rinaldi]

buongiorno,
non ho avuto tempo per seguire l'esempio che mi ha inviato, però posso fornire un'ulteriore info a quanto già detto

tutto funziona in maniera corretta se io raggiungo la destinazione remota via modem analogico tradizionale

quindi riassumendo:
non funziona via adsl fastweb o alice.

funziona via modem analogico o creando un ambiente di emulazione in laboratorio utilizzando un laptop con cisco vpn client>router> link cdn>router> asa>lan di destinazione

non riesco a capire la logica che ci stà dietro
qualsiasi idea è ben accetta

grazie

Alessandro

[Wizard]

Devi configurare il nat traversal!

[alessandro.rinaldi]

ciao,

il comando "crypto isakmp nat-traversal 21" l'ho già inserito 3 reply fà
ma non è cambiato nulla

[Wizard]

Prova ad aggiornare la IOS