Internet access from inside : PIX 501 VPN Server


This must be very basic. I googled but found no help.

We set up a PIX 501 as a VPN Server. We used the PDM - VPN Wizard and the VPN side of the equation works fine: we can access the required servers from remote VPN CLients (Cisco software VPN Client).

The same PIX 501 was used for our internet access. This worked fine before we set up the VPN Server. Now there is no more internet access possible from the inside.

What have I done wrong?

I know that to have internet access on the client side, the PIX has to be configured for split-tunneling. Our problem lies on the server side.

Best regards,

Karel Vandenhove

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Karel Vandenhove
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Show me your config

Regards Otto

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Thank you for wanting to help me out!

It is basically the standard configuration, followed by the PDM- VPN Wizard generated VPN config:

Building configuration... : Saved : PIX Version 6.3(3) interface ethernet0 auto interface ethernet1 100full nameif ethernet0 outside security0 nameif ethernet1 inside security100 enable password 8Ry2YjIyt7RRXU24 encrypted passwd 2KFQnbNIdI.2KYOU encrypted hostname pixfirewall domain-name 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 inside_outbound_nat0_acl permit ip host access-list inside_outbound_nat0_acl permit ip any access-list FRTLADON_splitTunnelAcl permit ip any pager lines 24 mtu outside 1500 mtu inside 1500 ip address outside dhcp setroute retry 4 ip address inside ip audit info action alarm ip audit attack action alarm ip local pool FRTLADON01 pdm location inside pdm location outside pdm location inside pdm logging informational 100 pdm history enable arp timeout 14400 global (outside) 1 interface nat (inside) 0 access-list inside_outbound_nat0_acl nat (inside) 1 0 0 static (inside,outside) netmask 0 0 access-group inside_access_in in interface inside 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 uauth 0:05:00 absolute aaa-server TACACS+ protocol tacacs+ aaa-server RADIUS protocol radius aaa-server LOCAL protocol local http server enable http 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 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 FRTLADON address-pool FRTLADON01 vpngroup FRTLADON dns-server vpngroup FRTLADON split-tunnel FRTLADON_splitTunnelAcl vpngroup FRTLADON idle-time 1800 vpngroup FRTLADON password ******** telnet inside telnet timeout 5 ssh timeout 5 management-access outside console timeout 0 dhcpd address inside dhcpd lease 3600 dhcpd ping_timeout 750 dhcpd auto_config outside dhcpd enable inside username Karel password Wur7WOs2efPKblzy encrypted privilege 15 terminal width 80 Cryptochecksum:5e021413efbfea34808ca8a839e791ca : end [OK]
Reply to
Karel Vandenhove

Hi Karel,

I do not know what you are doing with this part

static (inside,outside) netmask

But you can't use a IP address in this line on the outside interface, because you get this address by dhcp on your outside interface. So try something like this

static (inside,outside) tcp interface smtp smtp netmask

Regards oTTo

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