Configurazione pix501 con solo ip

[mulasso]

Ciao ragazzi ho questo dubbio. Devo preparare un pix501 per un mio cliente, questo ha un router zyxsel con un solo indirizzo ip pubblico.

La mia domanda è questa è obbligatorio avere un altro ip pubblico (io ho sempre configurato un pix501 con clienti che la telecom gli forniva 8 ip pubblici), oppure si può fare anche con un solo ip

Grazie

[Wizard]

Devi creare una rete interna tra il pix e il router e fare un doppio nat.

[mulasso]

Mi puoi fare qualche piccolo esempio di doppio nat.

Grazie

[Wizard]

In breve:

ip interno router: 192.168.0.1
ip esterno pix: 192.168.0.2
ip interno pix: 192.168.1.254

Il router natta la rete 192.168.0.0/24, tu fai un nat della rete interna quindi 192.168.1.0/24 sul ip esterno del pix e quindi 192.168.1.254. In questo modo la lan riesce ad uscire verso internet.

[mulasso]

Ho buttato giù questo tipo di configurazione, ma continuo a non andare in internet

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 2UEHXXKgjLuknc.G encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pixsolofra
domain-name ciscopix.com
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 outside_access_in permit icmp any any
access-list outside_access_in permit tcp any host 82.104.65.99 eq https
access-list outside_access_in permit tcp any host 82.104.65.99 eq www
access-list outside_access_in permit tcp any host 82.89.177.155 eq smtp
access-list inside_outbound_nat0_acl permit ip any 192.168.1.192 255.255.255.224
access-list outside_cryptomap_dyn_20 permit ip any 192.168.1.192 255.255.255.224
access-list inside_access_in permit tcp any any eq https
pager lines 24
icmp permit any outside
icmp permit any echo outside
icmp permit any echo-reply outside
mtu outside 1500
mtu inside 1500
ip address outside 192.168.0.2 255.255.255.0
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool esterni -------- - --------
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 192.168.0.3
nat (inside) 0 192.168.1.0 255.255.255.0 0 0
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
access-group outside_access_in in interface outside
access-group inside_access_in in interface inside
route outside 0.0.0.0 0.0.0.0 192.168.0.1 1
timeout xlate 0:05:00
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
http server enable
http 192.168.1.0 255.255.255.0 inside
http 192.168.1.150 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
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 nat-traversal 20
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 vpn-solofra address-pool esterni
vpngroup vpn-solofra idle-time 1800
vpngroup vpn-solofra password ********
telnet xxxxxxxxxx 255.255.255.255 outside
telnet 192.168.1.150 255.255.255.255 inside
telnet timeout 5
ssh timeout 5
console timeout 0
username admin password 2UEHXXKgjLuknc.G encrypted privilege 2
terminal width 80
Cryptochecksum:bd0029e1fd26f0acad3be2a4f1f42c63
: end

Mi date qualche consiglio è un problema di router o di pix?

Grazie

[Wizard]

Devi rifare le regole di NAT, falle così:

nat (inside) 0 access-list ***
nat (inside) 1 RETE_INTERNA 255.255.255.0 0 0

[mulasso]

Così andrà bene
la global outside vabbene?

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 2UEHXXKgjLuknc.G encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pixsolofra
domain-name ciscopix.com
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 outside_access_in permit icmp any any
access-list outside_access_in permit tcp any host 82.104.65.99 eq https
access-list outside_access_in permit tcp any host 82.104.65.99 eq www
access-list outside_access_in permit tcp any host 82.89.177.155 eq smtp
access-list inside_outbound_nat0_acl permit ip any 192.168.1.192 255.255.255.224
access-list outside_cryptomap_dyn_20 permit ip any 192.168.1.192 255.255.255.224
access-list inside_access_in permit tcp any any eq https
pager lines 24
icmp permit any outside
icmp permit any echo outside
icmp permit any echo-reply outside
mtu outside 1500
mtu inside 1500
ip address outside 192.168.0.2 255.255.255.0
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool esterni 192.168.1.201-192.168.1.220
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 192.168.0.3
nat (inside) 0 access-list 0.0.0.0 0.0.0.0 0 0
nat (inside) 1 192.168.1.0 255.255.255.0 0 0
access-group outside_access_in in interface outside
access-group inside_access_in in interface inside
route outside 0.0.0.0 0.0.0.0 192.168.0.1 1
timeout xlate 0:05:00
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
http server enable
http 192.168.1.0 255.255.255.0 inside
http 192.168.1.150 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
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 nat-traversal 20
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 vpn-solofra address-pool esterni
vpngroup vpn-solofra idle-time 1800
vpngroup vpn-solofra password ********
telnet xxxxxxxxxx 255.255.255.255 outside
telnet 192.168.1.150 255.255.255.255 inside
telnet timeout 5
ssh timeout 5
console timeout 0
username admin password 2UEHXXKgjLuknc.G encrypted privilege 2
terminal width 80
Cryptochecksum:bd0029e1fd26f0acad3be2a4f1f42c63
: end

Grazie perchè sto imparando molto

[Wizard]

Si, il global va bene ma il nat0 no:

Codice: Seleziona tutto

no nat (inside) 0 access-list 0.0.0.0 0.0.0.0 0 0
nat (inside) 0 access-list inside_outbound_nat0_acl

[mulasso]

Così dovrebbe andare bene? Spero?

PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 2UEHXXKgjLuknc.G encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pixsolofra
domain-name ciscopix.com
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 outside_access_in permit icmp any any
access-list outside_access_in permit tcp any host 82.104.65.99 eq https
access-list outside_access_in permit tcp any host 82.104.65.99 eq www
access-list outside_access_in permit tcp any host 82.89.177.155 eq smtp
access-list inside_outbound_nat0_acl permit ip any 192.168.1.192 255.255.255.224
access-list outside_cryptomap_dyn_20 permit ip any 192.168.1.192 255.255.255.224
access-list inside_access_in permit tcp any any eq https
pager lines 24
icmp permit any outside
icmp permit any echo outside
icmp permit any echo-reply outside
mtu outside 1500
mtu inside 1500
ip address outside 192.168.0.2 255.255.255.0
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool esterni 192.168.1.201-192.168.1.220
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 192.168.0.3
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 1 192.168.1.0 255.255.255.0 0 0
access-group outside_access_in in interface outside
access-group inside_access_in in interface inside
route outside 0.0.0.0 0.0.0.0 192.168.0.1 1
timeout xlate 0:05:00
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
http server enable
http 192.168.1.0 255.255.255.0 inside
http 192.168.1.150 255.255.255.255 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
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 nat-traversal 20
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 vpn-solofra address-pool esterni
vpngroup vpn-solofra idle-time 1800
vpngroup vpn-solofra password ********
telnet xxxxxxxxxx 255.255.255.255 outside
telnet 192.168.1.150 255.255.255.255 inside
telnet timeout 5
ssh timeout 5
console timeout 0
username admin password 2UEHXXKgjLuknc.G encrypted privilege 2
terminal width 80
Cryptochecksum:bd0029e1fd26f0acad3be2a4f1f42c63

[Wizard]

Si, ora direi che va bene.
Fai 2 test e facci sapere.

[mulasso]

Vi terrò aggiornati

Grazie

[mulasso]

Ho fatto le modifiche al firewall.

Ma la cosa strana skype vai in linea e riesco anche a dialogare, ma explorer o altro per navigare non funziona.

Che cosa potrebbe essere?

Ciao e Grazie

[Wizard]

mhm...prova a pingare 151.1.1.1 (dopo aver messo le acl in entrata per il ping sul pix) e vedere se è un problema di risoluzione dns