05-25-2007 05:25 AM - edited 02-21-2020 01:32 AM
Hi all,
I have one PIX 506e, on inside lan there is one PC client, on this client there is SSH Sentinel VPN Client software for connect this PC to a Remote lan protected by Zyxel Router/firewall.
When I activate Sentinel software,
VPN Tunnel goes ON but the taffic doesn't work, for example is not possible to ping any host.
If I remove PIX 506 and I connect PC directly to the Router, VPN Tunnel goes ON and any host of remote Lan respond to Ping. Zyxel support suggest to verify Port 500 and port 68.
Cisco PIX log say:
305006: portmap translation creation failed for protocol 50 src inside:192.168.2.169 dst outside:88.xx.123.zz
06-04-2007 09:19 AM
PIX Version 6.3(5)
interface ethernet0 auto
interface ethernet1 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
hostname PIX
domain-name intranet.xxxxx.it
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 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
fixup protocol tftp 69
names
access-list outside_access_in permit icmp any any echo-reply
access-list nonat permit ip any 10.0.1.0 255.255.255.0
access-list nonat permit ip any 10.0.2.0 255.255.255.0
access-list nonat permit ip any 10.0.3.0 255.255.255.0
pager lines 24
logging on
logging buffered notifications
logging trap notifications
mtu outside 1500
mtu inside 1500
ip address outside xxx.xxx.xxx.157 255.255.255.248
ip address inside 192.168.2.101 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool Networking 10.0.1.1-10.0.1.10
ip local pool Mobile 10.0.2.1-10.0.2.10
ip local pool Comm 10.0.3.1-10.0.3.10
pdm location 192.168.2.0 255.255.255.0 inside
pdm location 10.0.1.0 255.255.255.0 outside
pdm location 10.0.1.0 255.255.255.0 inside
pdm location 10.0.2.0 255.255.255.0 outside
pdm location 10.0.3.0 255.255.255.0 outside
pdm location 192.168.2.169 255.255.255.255 inside
pdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 0 access-list nonat
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
static (inside,outside) xxx.xxx.xxx.156 192.168.2.169 netmask 255.255.255.255 0 0
access-group outside_access_in in interface outside
route outside 0.0.0.0 0.0.0.0 xxx.xxx.xxx.158 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 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
http server enable
http 192.168.2.0 255.255.255.0 inside
http 10.0.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set TRSET esp-3des esp-sha-hmac
crypto dynamic-map dynmap 10 set transform-set TRSET
crypto map VPN 10 ipsec-isakmp dynamic dynmap
crypto map VPN interface outside
isakmp enable outside
isakmp identity address
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption 3des
isakmp policy 10 hash sha
isakmp policy 10 group 2
isakmp policy 10 lifetime 86400
vpngroup Networking address-pool Networking
vpngroup Networking dns-server 192.168.2.1
vpngroup Networking wins-server 192.168.2.1
vpngroup Networking default-domain intranet.xxxxx.it
vpngroup Networking idle-time 1800
vpngroup Networking password ZZZZZZZZZZZZZZZZZZ
-------
other VPN groups
-------
telnet 192.168.2.0 255.255.255.0 inside
telnet 10.0.1.0 255.255.255.0 inside
telnet timeout 5
ssh timeout 5
management-access inside
console timeout 0
Done it, you can see configuration and the specified line
static (inside,outside) xxx.xxx.xxx.156 192.168.2.169 netmask 255.255.255.255 0 0
192.168.2.169 is the ip address of the client.
but doesn't work, I am still not able to communicate.
Finally is not a NAT problem?
06-04-2007 09:33 AM
Don't fault me for being thorough..it is best to be able to completely rule one thing out before worrying about anything else. Are you still getting the same error on the pix? isakmp nat-traversal is missing from your pix, it was in your first config, you want to put that back for your vpn clients.
06-05-2007 01:02 AM
Dear Acomiskey,
I'm sorry but it was my fault (I missed a line with the "copy+paste")
I can confirm you that there is the isakmp command as the last configuration:
isakmp enable outside
isakmp identity address
isakmp nat-traversal 20
I'm sorry, thank you for your patience.
06-05-2007 05:04 AM
No problems, so it still doesn't work?
When you added the static command and tested the vpn, were you receiving the same error on the pix?
06-05-2007 06:34 AM
Ok. I don't have any message with the static command.
If the VPN with the zyxel is up I cannot see any traffic of my public IP xxx.xxx.xxx.156 with my log sets.
If the VPN is down I see the traffic in the show log.
I went to myip.dk and I checked that my I changed my IP to the new static IP xxx.xxx.xxx.156
06-07-2007 09:26 AM
Dear Acomiskey
what do you think of my case?
Definitely is not a NAT problem?
what can I do?
Thak you for your support.
06-07-2007 09:38 AM
I'm running out of ideas here. Could you explain what you mean here..particularly "if the vpn with the zyxel is up"...
If the VPN with the zyxel is up I cannot see any traffic of my public IP xxx.xxx.xxx.156 with my log sets.
If the VPN is down I see the traffic in the show log.
I went to myip.dk and I checked that my I changed my IP to the new static IP xxx.xxx.xxx.156
06-07-2007 09:49 AM
If I'm connected to the zywall, if I establish the connection
I don't see the traffic of my pc in the show log (192.168.2.169 that now have the static xxx.xxx.xxx.156)
maybe I can change my logging in orde to see if I have the same error, but I don't know how.
06-10-2007 11:42 PM
Hi,
hope you had a nice w/e.
Was I clear enought for the explanations?
Still running out of ideas?
06-11-2007 10:21 AM
I don't see this as being a problem with your pix. It still seems to me like you are having a problem with udp 4500 nat-traversal. This could be a problem on the client or on the remote peer device. That's about it..sorry.
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