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Guest
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 Posted: Fri Apr 28, 2006 7:50 pm Post subject: Simple Pix VPN question |
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Hi,
I'm a newbie to Cisco Pix and VPN's. I'm hoping this is a simple
question.
Here are the spec's.
Cisco Pix Firewall 515e - 3 interfaces (outside, inside, dmz)
I set up the VPN using the wizard. I'm trying to get smarter on this as
I go along so I can better refine what I'm trying to do.
All I want is to have a remote office to be able to VPN into our
network and be able to use their network at the same time. Does this
require 'Split tunneling'? Do I need to put their internal DNS IP
address in our config? Also,
It seems that when more than one of their users tries to VPN into our
network, the one kicks the other's session out. I'm assuming what's
going on is they are showing up as one IP address through their NAT
and that is confusing the PIX (as it obviously needs something else in
our config) Thanks in advance for any help one might be able to offer a
newbie trying to learn his way around this thing - Here is my config
PIX Version 6.3(1)
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 jpiadmz security40
enable password 26YZBaoaL8CQKfWI encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname jpiapix
domain-name mydomain.com
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
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
names
access-list acl-outside permit tcp any host xx.xx.xx.195 eq smtp
access-list acl-outside permit tcp any host xx.xx.xx.195 eq https
access-list acl-outside permit tcp any host xx.xx.xx.195 eq www
access-list acl-outside permit tcp any host xx.xx.xx.196 eq
pcanywhere-data
access-list acl-outside permit tcp any host xx.xx.xx.196 eq 5632
access-list acl-outside permit tcp any host xx.xx.xx.197 eq www
access-list acl-outside permit tcp any host xx.xx.xx.200 eq 8234
access-list acl-outside permit tcp any host xx.xx.xx.200 eq www
access-list acl-outside permit tcp any host xx.xx.xx.197 eq https
access-list inside_outbound_nat0_acl permit ip any 10.10.10.192
255.255.255.192
access-list outside_cryptomap_dyn_20 permit ip any 10.10.10.192
255.255.255.192
access-list nonatdmz permit ip 192.168.1.0 255.255.255.0 10.10.10.0
255.255.255.0
access-list outside_cryptomap_dyn_40 permit ip any 10.10.10.192
255.255.255.192
access-list outside_cryptomap_dyn_60 permit ip any 10.10.10.192
255.255.255.192
pager lines 24
logging on
logging buffered errors
mtu outside 1500
mtu inside 1500
mtu jpiadmz 1500
ip address outside xx.xx.xx.194 255.255.255.224
ip address inside 10.10.10.254 255.255.255.0
ip address jpiadmz 192.168.1.254 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool jpiapool 10.10.10.210-10.10.10.230
ip local pool vospool 10.10.10.240-10.10.10.243
pdm location 10.10.10.0 255.255.255.255 inside
pdm location 10.10.10.20 255.255.255.255 inside
pdm location 10.10.10.9 255.255.255.255 inside
pdm location 10.10.10.21 255.255.255.255 inside
pdm location 10.10.10.23 255.255.255.255 inside
pdm location 10.10.10.24 255.255.255.255 inside
pdm location 192.168.1.10 255.255.255.255 jpiadmz
pdm location 10.10.10.25 255.255.255.255 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
nat (jpiadmz) 10 0.0.0.0 0.0.0.0 0 0
static (inside,jpiadmz) 10.10.10.0 10.10.10.0 netmask 255.255.255.0 0 0
static (inside,outside) xx.xx.xx.195 10.10.10.20 netmask
255.255.255.255 0 0
static (inside,outside) xx.xx.xx.196 10.10.10.21 netmask
255.255.255.255 0 0
static (jpiadmz,outside) xx.xx.xx.197 192.168.1.10 netmask
255.255.255.255 0 0
static (inside,outside) xx.xx.xx.200 10.10.10.25 netmask
255.255.255.255 0 0
access-group acl-outside in interface outside
access-group nonatdmz in interface jpiadmz
route outside 0.0.0.0 0.0.0.0 xx.xx.xx.193 1
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 uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
http server enable
http 10.10.10.0 255.255.255.255 inside
http 10.10.10.0 255.255.255.0 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-DES-MD5 esp-des 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-DES-MD5
crypto dynamic-map outside_dyn_map 40 match address
outside_cryptomap_dyn_40
crypto dynamic-map outside_dyn_map 40 set transform-set ESP-DES-MD5
crypto dynamic-map outside_dyn_map 60 match address
outside_cryptomap_dyn_60
crypto dynamic-map outside_dyn_map 60 set transform-set ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
isakmp enable outside
isakmp enable inside
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup jpiagroup address-pool jpiapool
vpngroup jpiagroup dns-server 10.10.10.22 10.10.10.20
vpngroup jpiagroup default-domain mydomain.com
vpngroup jpiagroup idle-time 10080
vpngroup jpiagroup max-time 10080
vpngroup jpiagroup password ********
vpngroup vosgroup address-pool vospool
vpngroup vosgroup dns-server 10.10.10.22 10.10.10.20
vpngroup vosgroup default-domain mydomain.com
vpngroup vosgroup idle-time 10080
vpngroup vosgroup max-time 10080
vpngroup vosgroup password ********
telnet 10.10.10.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
terminal width 80
Cryptochecksum:14dc11e456817969ef95de73ee082de1
: end
[OK] |
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Martin Bilgrav
Guest
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| Posted: Sat Apr 29, 2006 9:50 pm Post subject: Re: Simple Pix VPN question |
|
|
<erikkjunk@yahoo.com> wrote in message
news:1146252324.475999.80640@j73g2000cwa.googlegroups.com...
| Quote: | Hi,
I'm a newbie to Cisco Pix and VPN's. I'm hoping this is a simple
question.
Here are the spec's.
Cisco Pix Firewall 515e - 3 interfaces (outside, inside, dmz)
I set up the VPN using the wizard. I'm trying to get smarter on this as
I go along so I can better refine what I'm trying to do.
All I want is to have a remote office to be able to VPN into our
network and be able to use their network at the same time. Does this
require 'Split tunneling'? Do I need to put their internal DNS IP
address in our config? Also,
|
correct, plus you need to click it on in the VPN GUI
What you must have in your config is "from you" to "their local LAN."
The rest then goes out locally.
| Quote: | It seems that when more than one of their users tries to VPN into our
network, the one kicks the other's session out. I'm assuming what's
going on is they are showing up as one IP address through their NAT
and that is confusing the PIX (as it obviously needs something else in
our config) Thanks in advance for any help one might be able to offer a
newbie trying to learn his way around this thing - Here is my config
|
Put in the command ISAKMP NAT-T
And check that UDP encap is click on in the VPN GUI (Udp/4500)
Btw you have an very poor DMZ protection !
Everything is allowed from DMZ to inside !
If/when you get compromised, there will be full access.
Also I find it strange that you have several Dyn Maps, and have ISAKMP
enabled on both inside and outside.
Also you run just DES, which is considered weak. You should run atleast
AES128
Regards
Martin Bilgrav
| Quote: |
PIX Version 6.3(1)
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 jpiadmz security40
enable password 26YZBaoaL8CQKfWI encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname jpiapix
domain-name mydomain.com
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
fixup protocol ils 389
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
names
access-list acl-outside permit tcp any host xx.xx.xx.195 eq smtp
access-list acl-outside permit tcp any host xx.xx.xx.195 eq https
access-list acl-outside permit tcp any host xx.xx.xx.195 eq www
access-list acl-outside permit tcp any host xx.xx.xx.196 eq
pcanywhere-data
access-list acl-outside permit tcp any host xx.xx.xx.196 eq 5632
access-list acl-outside permit tcp any host xx.xx.xx.197 eq www
access-list acl-outside permit tcp any host xx.xx.xx.200 eq 8234
access-list acl-outside permit tcp any host xx.xx.xx.200 eq www
access-list acl-outside permit tcp any host xx.xx.xx.197 eq https
access-list inside_outbound_nat0_acl permit ip any 10.10.10.192
255.255.255.192
access-list outside_cryptomap_dyn_20 permit ip any 10.10.10.192
255.255.255.192
access-list nonatdmz permit ip 192.168.1.0 255.255.255.0 10.10.10.0
255.255.255.0
access-list outside_cryptomap_dyn_40 permit ip any 10.10.10.192
255.255.255.192
access-list outside_cryptomap_dyn_60 permit ip any 10.10.10.192
255.255.255.192
pager lines 24
logging on
logging buffered errors
mtu outside 1500
mtu inside 1500
mtu jpiadmz 1500
ip address outside xx.xx.xx.194 255.255.255.224
ip address inside 10.10.10.254 255.255.255.0
ip address jpiadmz 192.168.1.254 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool jpiapool 10.10.10.210-10.10.10.230
ip local pool vospool 10.10.10.240-10.10.10.243
pdm location 10.10.10.0 255.255.255.255 inside
pdm location 10.10.10.20 255.255.255.255 inside
pdm location 10.10.10.9 255.255.255.255 inside
pdm location 10.10.10.21 255.255.255.255 inside
pdm location 10.10.10.23 255.255.255.255 inside
pdm location 10.10.10.24 255.255.255.255 inside
pdm location 192.168.1.10 255.255.255.255 jpiadmz
pdm location 10.10.10.25 255.255.255.255 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
nat (jpiadmz) 10 0.0.0.0 0.0.0.0 0 0
static (inside,jpiadmz) 10.10.10.0 10.10.10.0 netmask 255.255.255.0 0 0
static (inside,outside) xx.xx.xx.195 10.10.10.20 netmask
255.255.255.255 0 0
static (inside,outside) xx.xx.xx.196 10.10.10.21 netmask
255.255.255.255 0 0
static (jpiadmz,outside) xx.xx.xx.197 192.168.1.10 netmask
255.255.255.255 0 0
static (inside,outside) xx.xx.xx.200 10.10.10.25 netmask
255.255.255.255 0 0
access-group acl-outside in interface outside
access-group nonatdmz in interface jpiadmz
route outside 0.0.0.0 0.0.0.0 xx.xx.xx.193 1
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 uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
http server enable
http 10.10.10.0 255.255.255.255 inside
http 10.10.10.0 255.255.255.0 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-DES-MD5 esp-des 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-DES-MD5
crypto dynamic-map outside_dyn_map 40 match address
outside_cryptomap_dyn_40
crypto dynamic-map outside_dyn_map 40 set transform-set ESP-DES-MD5
crypto dynamic-map outside_dyn_map 60 match address
outside_cryptomap_dyn_60
crypto dynamic-map outside_dyn_map 60 set transform-set ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map interface outside
isakmp enable outside
isakmp enable inside
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup jpiagroup address-pool jpiapool
vpngroup jpiagroup dns-server 10.10.10.22 10.10.10.20
vpngroup jpiagroup default-domain mydomain.com
vpngroup jpiagroup idle-time 10080
vpngroup jpiagroup max-time 10080
vpngroup jpiagroup password ********
vpngroup vosgroup address-pool vospool
vpngroup vosgroup dns-server 10.10.10.22 10.10.10.20
vpngroup vosgroup default-domain mydomain.com
vpngroup vosgroup idle-time 10080
vpngroup vosgroup max-time 10080
vpngroup vosgroup password ********
telnet 10.10.10.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
console timeout 0
terminal width 80
Cryptochecksum:14dc11e456817969ef95de73ee082de1
: end
[OK]
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