Problema VPN IPSEC CON 2 FIREWALL ASA 5505

[Wizard]

Si va bene, ricordati di farlo su tutti e 2 gli ASA

[Cisco$]

scusa wizard.

mi hanno detto che anche sulla vlan1 e vlan2 bisogna mettere tipo un comando lifetime o keeplive per tenere su la VPN?
quando non c'è traffico.

Tu ne sai qualcosa?

Grazie

[Wizard]

Chi te l'ha detto?

[Cisco$]

ciao

wizard

cmq ho provato ma nulla da fare la VPN cade sempre quando il traffico è inattivo.

su quella cosa che ti ho detto, è stato un sistemista a dirmelo però non so se ho capito bene, mi deve spiegare bene oggi dopo pranzo.

Secondo te cosa può essere?

non ci manca nulla sulla conf. che posso aggiungere?

grazie

[Cisco$]

scusa

Wizard

posso mettere un comando per fare si anke quando ci sono momenti di pausa i due firewall si scambiano sempre informazioni, in modo che la VPN non cada?

Grazie

[Wizard]

Ma parli di inattività di ore o minuti?

[Cisco$]

No

di minuti

perchè va giù + 0 - dopo 30 - 45 minuti di inattività.

Scusa

forse non mi ero spiegato bene.

[Wizard]

45 minuti sono troppo pochi...
Sicuro che non vada giù la linea internet?!

[Cisco$]

no non credo.

perchè questo lo fà la sera anke quando chiudiamo.

forse ho sbagliato io a pensarci bene sarà anke dopo un ora.

perchè la pausa pranzo è dalle 13.00 alle 14.:30

la luce della VPN si spegne già dopo le 14:10.

la sera chiudiamo alle 18:30.

la VPN cadrà penso dopo un ora.


Non sono minuti come vedi.

ci ho pensato attentamente.

si può fare qualcosa per non far cadere la VPN fare traffico anke quando chiudiamo?


Grazie

[Wizard]

Mi fai vedere la config di uno dei 2 ASA ora?!
Sono configurati uguali giusto?!

[Cisco$]

si eccoti la prima config: asa firewall sede a centrale:





ASA Version 7.2(3)
!
hostname Autoshop-Battipaglia
domain-name default.domain
enable password lewDbIQp6v222N.4 encrypted
names
dns-guard
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.225.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 81.117.204.66 255.255.255.0
!
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 RLPMUQ26KL4blgFN encrypted
ftp mode passive
clock timezone WAT 1
dns domain-lookup outside
dns server-group DefaultDNS
name-server 151.99.125.2
name-server 151.99.125.3
domain-name default.domain
access-list outside_1_cryptomap extended permit ip 192.168.225.0 255.255.255.0 1
92.168.227.0 255.255.255.0
access-list inside_nat0_outbound extended permit ip 192.168.225.0 255.255.255.0
192.168.227.0 255.255.255.0
pager lines 24
logging enable
logging asdm informational
logging flash-bufferwrap
logging flash-maximum-allocation 512
mtu inside 1500
mtu outside 1500
ip verify reverse-path interface outside
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
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
route outside 0.0.0.0 0.0.0.0 192.168.225.1 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
http server enable
http 0.0.0.0 0.0.0.0 outside
http 192.168.225.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 1 match address outside_1_cryptomap
crypto map outside_map 1 set pfs
crypto map outside_map 1 set peer 88.41.126.86
crypto map outside_map 1 set transform-set ESP-3DES-SHA
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 policy 30
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet 192.168.225.0 255.255.255.0 inside
telnet 192.168.227.0 255.255.255.0 outside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd auto_config outside
!
dhcpd address 192.168.225.101-192.168.225.140 inside
dhcpd dns 151.99.125.3 interface 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
tunnel-group 88.41.126.86 type ipsec-l2l
tunnel-group 88.41.126.86 ipsec-attributes
pre-shared-key *
prompt hostname context
Cryptochecksum:02962c7c7af3adb542852a0f88821c23


e questa del secondo firewall sede B : filiale


ASA Version 7.2(3)
!
hostname Autoshop-Salerno
domain-name default.domain
enable password 0NjRwmAHetszWiXd encrypted
names
dns-guard
!
interface Vlan1
nameif inside
security-level 100
ip address 192.168.227.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address 88.41.126.86 255.255.255.248
!
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 RLPMUQ26KL4blgFN 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 outside
dns server-group DefaultDNS
name-server 151.99.125.2
name-server 151.99.125.3
domain-name default.domain
access-list inside_nat0_outbound extended permit ip 192.168.227.0 255.255.255.0
192.168.225.0 255.255.255.0
access-list outside_1_cryptomap extended permit ip 192.168.227.0 255.255.255.0 1
92.168.225.0 255.255.255.0
pager lines 24
logging enable
logging list VPN level debugging class vpn
logging list VPN message 101002
logging console VPN
logging buffered VPN
logging asdm informational
logging flash-bufferwrap
logging class vpn buffered debugging asdm debugging
mtu inside 1500
mtu outside 1500
ip verify reverse-path interface outside
icmp unreachable rate-limit 1 burst-size 1
icmp permit any inside
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
route outside 0.0.0.0 0.0.0.0 192.168.227.1 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
http server enable
http 0.0.0.0 0.0.0.0 outside
http 192.168.227.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto map outside_map 1 match address outside_1_cryptomap
crypto map outside_map 1 set pfs
crypto map outside_map 1 set peer 81.117.204.66
crypto map outside_map 1 set transform-set ESP-3DES-SHA
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 policy 30
authentication pre-share
encryption 3des
hash sha
group 2
lifetime 86400
telnet 192.168.227.0 255.255.255.0 inside
telnet 192.168.225.0 255.255.255.0 outside
telnet timeout 5
ssh timeout 5
console timeout 0
dhcpd dns 151.99.125.2
dhcpd lease 806000
dhcpd auto_config outside
!
dhcpd address 192.168.227.101-192.168.227.140 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
tunnel-group 81.117.204.66 type ipsec-l2l
tunnel-group 81.117.204.66 ipsec-attributes
pre-shared-key *
prompt hostname context
Cryptochecksum:b2bc504a4a04e231ad35017bdeb9b45c


Grazie

[Wizard]

Per il DPD:

Su entrambi i FW

tunnel-group DefaultL2LGroup ipsec-attributes
isakmp keepalive threshold 20 retry 4

Sul primo

tunnel-group 88.41.126.86 ipsec-attributes
isakmp keepalive threshold 20 retry 4

Sul secondo

tunnel-group 81.117.204.66 ipsec-attributes
isakmp keepalive threshold 20 retry 4

[Cisco$]

ah

grazie mille.

li provo e ti faccio sapere.

ma questi comandi di preciso cosa fanno?

grazie ancora!

[Cisco$]

Allora

ho messo i comandi.

dopo un ora

la spia VPN si è spenta comunque.


Ora non sò se questo mi crea problemi anche sul programma che utilizzo, devo provare a vedere domani.


Ma se si spegne credo che darà comunque il problema.


Non capisco perchè fà cosi?

[Cisco$]

mi puoi aiutare di nuovo Wizard?

non ti viene in mente nulla?


grazie