Pb pool DHCP VPN PIX 501

Bonjour, Je possede un PIX 501. Il marche a merveille mais je m'interoge sur un point qui me chiffone !!!

J'utilise le PDM pour configurer mon pix. Le wizard VPn me permet de creer mon tunnel VPN, la crypto etc etc ... et le pool DHCP dedié au VPN. Que je mets donc sur une autre calsse d'adresse.

MOn LAN est en 192.168.1.0 /24

MOn pool DHCP VPN sur 192.168.2.0 /24 exactement j'ai mi 192.168.2.100 ----> 192.168.2.104 pour avoir 5 baux possibles.

avec un client cisco je me connect sans problemes au pix. Le tunnel 3DES MD5 est bien monté. mais je ne parviens pas a acceder a mon LAN depuis le VPN. POurtant le SPPLIT est bien activé.

Dans ma config je ne comprends pas une ligne. et j'ai la forte impression que c'est cette ligne qui me pose probleme. Si qq'un peut me donner confirmation. Je vous en remercis par avance.


cette ligne : access-list outside_cryptomap_dyn_20 permit ip any 192.168.2.96 255.255.255.240

Pourquoi a t'elle un mask en 255.255.255.240 ?? je n'ai jamais demandé ca. mon pool etant 192.168.2.100 ----> 192.168.2.104

a quoi sert t'elle . merci


Voici mon fichier de config ::

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password kLcnfQuWrx5zqUk2 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname PiXou
domain-name domain.local
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
access-list vpngroupe_splitTunnelAcl permit ip 192.168.1.0 255.255.255.0 any
access-list inside_outbound_nat0_acl permit ip 192.168.1.0 255.255.255.0 192.168
.2.96 255.255.255.240
access-list outside_cryptomap_dyn_20 permit ip any 192.168.2.96 255.255.255.240

access-list out2in permit tcp any interface outside eq 5900
access-list out2in permit tcp any interface outside eq 5800
pager lines 24
mtu outside 1492
mtu inside 1500
ip address outside pppoe setroute
ip address inside 192.168.1.254 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool dhcpvpn 192.168.2.100-192.168.2.104
pdm location 192.168.1.253 255.255.255.255 inside
pdm history enable
arp timeout 14400
global (outside) 10 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 10 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp interface 5900 192.168.1.253 5900 netmask 255.255.25
5.255 0 0
static (inside,outside) tcp interface 5800 192.168.1.253 5800 netmask 255.255.25
5.255 0 0
access-group out2in in interface outside
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout sip-disconnect 0:02:00 sip-invite 0:03:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
aaa-server LOCAL protocol local
aaa-server localaaa protocol tacacs+
aaa-server localaaa max-failed-attempts 3
aaa-server localaaa deadtime 10
aaa-server localaaa (inside) host 192.168.1.253 timeout 10
http server enable
http 192.168.1.253 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
tftp-server inside 192.168.1.253 con1
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
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 client authentication LOCAL
crypto map outside_map interface outside
isakmp enable outside
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption 3des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup vpngroupe address-pool dhcpvpn
vpngroup vpngroupe dns-server 80.10.246.2 80.10.246.129
vpngroup vpngroupe split-tunnel vpngroupe_splitTunnelAcl
vpngroup vpngroupe idle-time 1800
vpngroup vpngroupe password ********
telnet 192.168.1.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
vpdn group pppoe_group request dialout pppoe
vpdn group pppoe_group localname fti/ar6wq4f
vpdn group pppoe_group ppp authentication chap
vpdn username fti/ar6wq4f password ********* store-local
dhcpd address 192.168.1.200-192.168.1.204 inside
dhcpd dns 80.10.246.2 80.10.246.129
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd enable inside
username vpn_iti password DbGZuNGTDG/K/RSy encrypted privilege 15
username alexis password U0pPJgrF5hh2fDWF encrypted privilege 15
terminal width 80
Cryptochecksum:838205fd6fc0edeedac2d4a1b94bef25
: end