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PIX 515E

ali.asghar
Level 1
Level 1

I have two questions, and will appreciate a quick response.

I have a VPN 3030 connected on a DMZ Interface via public address. We put the VPN 3030 behind PIX for added security.

1) What kind of address translation do I need to allow VPN users coming from PIX outside interface to the inside network via DMZ interface.

2) How do I allow IPSEC and HTTPS traffic to be allowed via PIX. Note: VPN 3030 is the actual box where all the IPSEC configuration will take place. PIX just has to allow it.

Can someone shed some light on it.

See below the config as well.

------------------------------------

PIX Version 6.3(3)

interface ethernet0 100full

interface ethernet1 100full

interface ethernet2 100full

interface ethernet3 auto shutdown

interface ethernet4 auto shutdown

interface ethernet5 auto shutdown

nameif ethernet0 outside security0

nameif ethernet1 inside security100

nameif ethernet2 DMZ1 security99

nameif ethernet3 intf3 security6

nameif ethernet4 intf4 security8

nameif ethernet5 intf5 security10

enable password xxxx

passwd xxxx

hostname D000FWA01

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 ACL-IN permit icmp any any

pager lines 24

mtu outside 1500

mtu inside 1500

mtu DMZ1 1500

mtu intf3 1500

mtu intf4 1500

mtu intf5 1500

ip address outside 223.233.x.x.x255.240

ip address inside 10.180.1.113 255.255.255.248

ip address DMZ1 223.233.x.x.x.x.240

no ip address intf3

no ip address intf4

no ip address intf5

ip audit info action alarm

ip audit attack action alarm

failover

failover timeout 0:00:00

failover poll 15

no failover ip address outside

no failover ip address inside

no failover ip address DMZ1

no failover ip address intf3

no failover ip address intf4

no failover ip address intf5

pdm logging informational 100

pdm history enable

arp timeout 14400

global (outside) 1 223.x.x.x.233.74.45 netmask 255.255.255.240

global (outside) 1 223.x.x.46 netmask 255.255.255.240

nat (DMZ1) 1 0.0.0.0 0.0.0.0 0 0

access-group ACL-IN in interface inside

route outside 0.0.0.0 0.0.0.0 223.233.74.1 1

route inside 10.141.0.0 255.255.0.0 10.180.1.117 1

route inside 10.149.0.0 255.255.0.0 10.180.1.117 1

route inside 10.151.0.0 255.255.0.0 10.180.1.117 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 192.168.1.0 255.255.255.0 inside

no snmp-server location

no snmp-server contact

snmp-server community public

no snmp-server enable traps

floodguard enable

telnet timeout 5

ssh timeout 5

console timeout 0

dhcpd lease 3600

dhcpd ping_timeout 750

dhcpd auto_config outside

terminal width 80

Cryptochecksum:xxxx

1 Reply 1

scoclayton
Level 7
Level 7

1) There are several ways to accomplish this task. The easiest way to accomplish this is to use the static command like this:

static (dmz,outside) 1.2.3.4 1.2.3.4

**where 1.2.3.4 is the address you have assigned to the public interface on the 3030

2) Add the following lines:

access-list ACL-IN permit udp any host 1.2.3.4 eq 500

access-list ACL-IN permit esp any host 1.2.3.4

access-list ACL-IN permit tcp any host 1.2.3.4 eq 443

**again, where 1.2.3.4 is the address assigned to the public interface on the 3030

Hope this helps.

Scott

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