ho un problema veramente strano. ieri mattina per qualche motivo il firewall non mi faceva collegare da remoto in VPN, ho un ASA5510. non funzionava il portale VPN SSL Clientless ecc. ho rivisto la configurazione e caricato d'accapo i bin. ho ripristinato le chiavi condivise ecc
dopo un po di lavoro, guardando una configurazioen di bk che avevo, sono riuscito a collegarmi in vpn. accedo in L2TP/IPSEC con chiave condivisa e autenticazione PAP e LDAP.
le stranezze oggi sono continuate, il portale VPN SSL Clientless mi funziona bene; quando mi collego in vpn mi viene dato il giusto ip del pool e mi autentico ma... non riesco ad accedere alle risorse di rete.
pensavo ad un problema di route, di nat o di regole, anche se non ho cambiato nulla dalla configurazione di default, ma non credo sia così.
il ping da remoto ad un server locale a volte va e a volte no
a volte c'è una risposta del primo pacchetto poi muoiono tutti. a volte continuo a pingare tutte le risorse locali, da remoto, per un tempo non definito (a volte 5 minuti, a volte mezzora) e in questo periodo funziona tutto, interno voip remoto, accesso alle cartelle condivise, dns ecc...
dovrei capire cosa c'è che non va per poter tornare a lavorare!
vi incollo la mia configurazione, mi servirebbe, gentilmente, un vostro parere anche su quali diagnosi posso effettuare perchè, davvero, non so più dove sbattere!
grazie
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ASA Version 8.2(5)
!
hostname FIREWALLP01
domain-name MYDOMAIN.local
enable password **** encrypted
passwd **** encrypted
names
name 192.168.90.2 SERVERP02
name 192.168.90.3 SERVERP03
name 192.168.92.4 SERVERP04
name yy.xxx.zzz.91 Pubblica_HTTP
name yy.xxx.zzz.88 Pubblica_SIADSL-network
name yy.xxx.zzz.92 Pubblica_VOIP
name yy.xxx.zzz.89 ROUTERP01
name yy.xxx.zzz.90 Pubblica_FTP
name yy.110.215.235 SRVPIN1
!
interface Ethernet0/0
nameif Pubblica_SIADSL
security-level 0
ip address yy.xxx.zzz.94 255.255.255.248
!
interface Ethernet0/1
nameif LAN
security-level 100
ip address 192.168.90.254 255.255.255.0
!
interface Ethernet0/2
nameif DMZ
security-level 98
ip address 192.168.92.254 255.255.255.0
!
interface Ethernet0/3
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
!
boot system disk0:/asa825-k8.bin
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 Pubblica_SIADSL
dns domain-lookup LAN
dns domain-lookup DMZ
dns domain-lookup management
dns server-group DefaultDNS
name-server SERVERP02
domain-name MYDOMAIN.local
object-group protocol TCPUDP
protocol-object udp
protocol-object tcp
object-group service rtp udp
port-object range 9000 9049
port-object eq 10000
access-list LAN_nat0_outbound extended permit ip any 192.168.90.0 255.255.255.0
access-list Pubblica_SIADSL_access_in extended permit tcp any host Pubblica_HTTP eq ssh
access-list Pubblica_SIADSL_access_in extended permit udp any host Pubblica_VOIP object-group rtp
access-list Pubblica_SIADSL_access_in extended permit object-group TCPUDP any host Pubblica_VOIP eq sip
access-list Pubblica_SIADSL_access_in extended permit tcp any host Pubblica_HTTP eq www
access-list Pubblica_SIADSL_access_in extended permit tcp host SRVPIN1 host Pubblica_FTP eq ftp inactive
pager lines 24
logging enable
logging asdm informational
mtu Pubblica_SIADSL 1500
mtu LAN 1500
mtu DMZ 1500
mtu management 1500
ip local pool VPN_pool_new 192.168.90.130-192.168.90.139 mask 255.255.255.0
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-625-53.bin
no asdm history enable
arp timeout 14400
global (Pubblica_SIADSL) 1 interface
global (DMZ) 1 interface
nat (LAN) 0 access-list LAN_nat0_outbound
nat (LAN) 1 0.0.0.0 0.0.0.0
static (LAN,Pubblica_SIADSL) tcp Pubblica_FTP ftp SERVERP02 ftp netmask 255.255.255.255
static (DMZ,Pubblica_SIADSL) Pubblica_HTTP SERVERP04 netmask 255.255.255.255
static (LAN,Pubblica_SIADSL) Pubblica_VOIP SERVERP03 netmask 255.255.255.255
access-group Pubblica_SIADSL_access_in in interface Pubblica_SIADSL
route Pubblica_SIADSL 0.0.0.0 0.0.0.0 ROUTERP01 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 sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
webvpn
url-list value Link
aaa-server SERVERP02 protocol ldap
aaa-server SERVERP02 (LAN) host SERVERP02
ldap-base-dn DC=MYDOMAIN,DC=local
ldap-scope subtree
ldap-naming-attribute sAMAccountName
ldap-login-password *****
ldap-login-dn CN=Administrator,CN=Users,DC=MYDOMAIN,DC=local
server-type microsoft
http server enable
http 192.168.1.0 255.255.255.0 management
http authentication-certificate management
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set TRANS_ESP_3DES_SHA esp-3des esp-sha-hmac
crypto ipsec transform-set TRANS_ESP_3DES_SHA mode transport
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-3DES-SHA esp-3des 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 ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set TRANS_ESP_3DES_SHA ESP-3DES-SHA
crypto map Pubblica_SIADSL_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP
crypto map Pubblica_SIADSL_map interface Pubblica_SIADSL
crypto isakmp enable Pubblica_SIADSL
crypto isakmp policy 10
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet timeout 5
ssh timeout 5
console timeout 0
management-access management
dhcpd address 192.168.1.2-192.168.1.254 management
!
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 193.204.114.232 source Pubblica_SIADSL prefer
ntp server 193.204.114.233 source Pubblica_SIADSL
webvpn
enable Pubblica_SIADSL
enable LAN
group-policy DefaultRAGroup internal
group-policy DefaultRAGroup attributes
dns-server value 192.168.90.2
vpn-tunnel-protocol IPSec l2tp-ipsec
default-domain value MYDOMAIN.local
username test password P4ttSyrm33SV8TYp encrypted
username test attributes
service-type remote-access
tunnel-group DefaultRAGroup general-attributes
address-pool VPN_pool_new
authentication-server-group SERVERP02
default-group-policy DefaultRAGroup
tunnel-group DefaultRAGroup ipsec-attributes
pre-shared-key *****
tunnel-group DefaultRAGroup ppp-attributes
authentication pap
no authentication chap
no authentication ms-chap-v1
tunnel-group DefaultWEBVPNGroup general-attributes
authentication-server-group SERVERP02
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
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
inspect ip-options
inspect pptp
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:aa32bd872149dafa27077a3b68dfa7a2
: end