02-27-2007 02:59 AM - edited 03-11-2019 02:38 AM
Hello,
I have a problem with a 501 firmware 6.3
I need to allow my internal users to access a vpn in the US we are in the UK. Everytime my users try to access the US VPN it failes on reply from the US.
I have read the cisco docs which tell me to do a fixup protocol pptp 1723 which I have I have also tried opening the gre on the accesslist but I still cannot get it working. If I dont use the pix it works fine. Any ideas I have posted the config below.
Thanks
PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password
passwd
hostname internetfirewall
domain-name foobar.co.uk
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 pptp 1723
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
no fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names
access-list acl_out permit tcp any host 1.1.1.1 eq smtp
access-list acl_out permit tcp any host 1.1.1.1 eq https
access-list acl_out permit gre any any
access-list acl_out permit icmp any any echo-reply
access-list acl_out permit icmp any any echo
access-list 101 permit ip 10.0.0.0 255.255.255.0 192.168.50.0 255.255.255.0
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside 1.1.1.1 255.255.255.248
ip address inside 10.0.0.254 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool pptp-pool 192.168.50.200-192.168.50.250
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list 101
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) tcp 1.1.1.1 smtp 10.0.0.1 smtp netmask 255.255.255
.255 0 0
static (inside,outside) tcp 1.1.1.1 https 10.0.0.1 https netmask 255.255.2
55.255 0 0
access-group acl_out in interface outside
route outside 0.0.0.0 0.0.0.0 212.85.249.49 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
aaa authentication ssh console LOCAL
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-pptp
telnet 10.0.0.0 255.255.255.0 inside
telnet timeout 5
ssh x.x.x.x 255.255.255.240 outside
ssh x.x.x.x 255.255.255.248 outside
ssh x.x.x.x 255.255.255.248 outside
ssh x.x.x.x 255.255.255.248 outside
ssh x.x.x.x 255.255.255.248 outside
ssh x.x.x.x 255.255.255.252 outside
ssh x.x.x.x 255.255.255.255 outside
ssh x.x.x.x 255.255.255.252 outside
ssh timeout 60
console timeout 0
vpdn group 1 ppp authentication pap
vpdn group 1 ppp authentication chap
vpdn group 1 ppp authentication mschap
vpdn group 1 ppp encryption mppe auto
vpdn group 1 client configuration address local pptp-pool
vpdn group 1 pptp echo 60
vpdn group 1 client authentication local
vpdn username xperience password *********
vpdn enable outside
username **** password *** encrypted privilege 2
terminal width 80
Cryptochecksum:****
: end
[OK]
03-02-2007 12:02 PM
hi,
if you have only one client on the inside and fixup is there,then i believe you should connect.
now,if that does n't happen: do u have free public ip addresses.
let's say you have 3 clients on the inside.
7.7.7.7
8.8.8.8
9.9.9.9
and you have three public ip addresses:
4.4.4.4
5.5.5.5
6.6.6.6
you need to statically map these public ip's to the corresponding private ip addresses
static (inside,outside)
also,please add access-list on the outside permitting 1723 from any source to these three public ip's as destination.
put in " cl xlate " and then try to connect.with nat confiugured,i m sure it'll work.
pptp had inherent issues with pat ,but with fixup,it should work.
cheers!!
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