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501 6.2 vpn to 4.0.3 client

tim.frazee
Level 4
Level 4

Group,

I have a 501 that i want to be a vpn "server". i wish to connecto to it via the cisco vpn client. the client setup is correct as i use it for other cisco vpns. I have done this million times before, but have staired at this for to long. please help

inside is 10.10.11.254 /24

outside is 66.x.x.1 /27

The clinet connects, receives an ip address from the pool (172.16.3.1), and can encrypt packets out.

i even get the networks for the split tunnel.

but when i ping servers in the secured network, i see the packets for encryption heading out. But receive no reply.

debug icmp trace shows me the icmp packets going out and coming back. the source address is the pool address. (172.16.3.1)

pings timeout

i have attached the config

PIX Version 6.3(1)

interface ethernet0 auto

interface ethernet1 100full

nameif ethernet0 outside security0

nameif ethernet1 inside security100

enable password xxxx

passwd xxxx

hostname xxxx

domain-name xxxx

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 101 permit ip 10.10.11.0 255.255.255.0 172.16.3.0 255.255.255.0

access-list 101 permit ip 172.16.3.0 255.255.255.0 10.10.11.0 255.255.255.0

access-list 101 permit icmp any any

access-list 102 permit ip 10.10.11.0 255.255.255.0 172.16.3.0 255.255.255.0

access-list outside_in permit tcp any interface outside eq ssh

access-list outside_in permit icmp any any

pager lines 24

icmp permit any outside

icmp permit any inside

mtu outside 1500

mtu inside 1500

ip address outside 66.x.x.x.255.255.224

ip address inside 10.10.11.254 255.255.255.0

ip audit info action alarm

ip audit attack action alarm

ip local pool vpnpool 172.16.3.1-172.16.3.254

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 interface ssh 10.10.11.200 ssh netmask 255.255.255.255 0 0

access-group outside_in in interface outside

route outside 0.0.0.x x.x.x.x.128.99.65 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 10.10.11.0 255.255.255.0 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-3DES-MD5 esp-3des esp-md5-hmac

crypto ipsec transform-set myset esp-des esp-md5-hmac

crypto dynamic-map dynmap 10 set transform-set myset

crypto map mymap 10 ipsec-isakmp dynamic dynmap

crypto map mymap interface outside

isakmp enable outside

isakmp identity address

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 group address-pool vpnpool

vpngroup group split-tunnel 102

vpngroup group idle-time 1800

vpngroup group password ********

telnet 10.10.11.0 255.255.255.0 inside

telnet timeout 60

ssh timeout 60

console timeout 0

2 Replies 2

sstudsdahl
Level 4
Level 4

Is your VPN client machine behind a device that is performing NAT? If so, add the command "isakmp nat-traversal" to your PIX 501's configuration.

Steve

Yup, I think too thats a problem of NAT-TRAVERSAL.

Example config:

nat (inside) 0 access-list NONAT

access-list NONAT permit ip Internalnet ISubnet VPN-Pool 255.255.255.0

access-list DYN-VPN-ACL permit ip Internalnet ISubnet VPN-Pool 255.255.255.0

aaa-server LOCAL protocol local

aaa authentication secure-http-client

sysopt connection permit-ipsec

crypto ipsec transform-set TRANS esp-3des esp-md5-hmac

crypto dynamic-map outside_dyn_map 20 match address DYN-VPN-ACL

crypto dynamic-map outside_dyn_map 20 set transform-set TRANS

crypto map REMOTE 65535 ipsec-isakmp dynamic outside_dyn_map

crypto map REMOTE client authentication LOCAL

crypto map REMOTE interface outside

isakmp enable outside

isakmp identity address

isakmp nat-traversal 20

isakmp policy 10 authentication pre-share

isakmp policy 10 encryption 3des

isakmp policy 10 hash md5

isakmp policy 10 group 2

isakmp policy 10 lifetime 86400

ip local pool VPNPool x.y.z.1-x.y.z.254

vpngroup VPNGroup address-pool VPNPool

vpngroup VPNGroup dns-server dns2 dns1

vpngroup VPNGroup default-domain localdomain

vpngroup VPNGroup idle-time 1800

vpngroup VPNGroup password grouppassword

username vpnclient password vpnclient-password

sincerely

Patrick