CISCO ASA 5505 8.2 HUB AND PIX 501 6.3 SPOKE EZVPN L2L VIA ASDM 6.4
On the ASA, trough the ASDM,
- select “Wizards”
- then “IPsec VPN Wizard”
- then select “Remote Access” mantaining “Enable inbound IPsec sessions etcetera..”, NEXT
- first selection “Cisco VPN CLient….”, NEXT
- select “Preshared Key” and write it, also te tunnel group name, in our example: preshared key: banana and group: grpBANANA, NEXT
- use the local user DB, NEXT
- if needed add the user (in our example: userBANANA), NEXT
- select a pool from where it will take the IPs or create one, NEXT
- select the DNS and the other stuff, NEXT
- select interface “inside” and add in the exempt, I added the whole lan /24, if you want to tunnel ONLY the resources on the remote lan select “enable split tunneling…”, I HIGLY RECOMMEND TO SELECT SPLIT TUNNELING, NEXT
- review your selections and then FINISH
NB: we’d like to use NEM (Network Extension Mode) so we’ll have to add a line manually to the config:
connect via ssh or serial to your magnificient ASA
- locate you group policy lines (so you’ll look for the lines referring to “grpBANANA”
- add “nem enable” to the configuration
- yout config will look like this:
group-policy grpBANANA attributes
dns-server value IP_DNS_1 IP_DNS_2
vpn-tunnel-protocol IPSec
vsplit-tunnel-policy tunnelspecified
vsplit-tunnel-network-list value grpBANANA_splitTunnelAcl
vdefault-domain value banana.local
vnem enable
With the ASA config you should be good to go
PIX configuration:
I HIGHLY recommend to start with a clear pix configuration (use the command “configure factory-default” then remember to recreate the rsa keys: “hostname yourhosname”, “domain-name yourdomain”, “ca zeroize rsa”, “ca generate rsa key 1024”, “ca save all”, wr mem”)
command line via SSH or SERIAL, the final config will be like this:
PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 100full
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password xxxxxxxxxxxxxxxxxxxxxxxx encrypted
passwd xxxxxxxxxxxxxxxxxxxxxx encrypted
hostname bananaPIX
domain-name banana.local
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
pager lines 24
mtu outside 1500
mtu inside 1500
ip address outside dhcp setroute
ip address inside 192.168.0.0 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 192.168.0.0 255.255.255.0 0 0
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
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 outside
ssh 0.0.0.0 0.0.0.0 inside
ssh timeout 5
console timeout 0
dhcpd address 192.168.0.1-192.168.0.50 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside
vpnclient server PUBLIC_IP_ADDRESS_OF_ASA
vpnclient mode network-extension-mode
vpnclient vpngroup grpBANANA password ********
vpnclient username userBANANA password ********
vpnclient enable
this configuration is set to have the pix to search for DHCP on the outside interface so you can wire it to almost any network and be connected to your ASA
the really important part is this:
vpnclient server PUBLIC_IP_ADDRESS_OF_ASA
vpnclient mode network-extension-mode
vpnclient vpngroup grpBANANA password ********
vpnclient username userBANANA password ********
vpnclient enable
then you should be ready to go, remember to always try before needing something like this in a working state
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