IPSec by 837 to a pix501 am
Scenario: The user has a router 837 for ADSL access with an assigned IP address. The router has been implemented with outgoing dynamic nat overloaded by a static and 25 (ACL) port forwarding for incoming smtp mail.
We want to put a pix501 within the 837 to provide a sort of demilitarized zone and to provide remote access vpn service. We have implemented the 837 with dynamic NAT overloaded with three static (and ACLs associated) to the smtp port (25), NAT - T (500) and (IKE) 4500. The PIX is set up with the dynamic nat for its external interface also overloaded by a static for port 25.
This config works great for all outbound traffic and inbound smtp traffic. But we cannot establish a vpn over the Internet, the VPN client connection don't 'touch' the security gateway - which implies failure ISAKMP. If connect us a VPN client directly to the outside of the PIX and use his external IP for the IPSEC peer address we can establish a VPN connection very well, proving the VPN PIX (?) configuration The pix is configured for NAT - T support due to the 837. Also, the VPN client is configured to use NAT - T. ISAKMP is disabled on the 837.
Is there a reason why it would not work? If AH is still used?
I see the port udp 50 is typo, ike needs udp 500
Tags: Cisco Security
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IPSec VPN Site-to-Site router Cisco 837 to Firewall FortiGate 200 has
I had a challege for a site to site vpn scenario that may need some brainstorming you guys.
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Network diagram:
http://cjunhan.multiply.com/photos/hi-res/5/3?xurl=%2Fphotos%2Fphoto%2F5%2F3
Challenge:
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crypto ISAKMP policy 10
the BA
preshared authentication
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md5 hash
ISAKMP crypto key sitetositevpn address 210.x.x.66
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Crypto ipsec transform-set esp - esp-md5-hmac ciscoset
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interface Ethernet0
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access-list 111 allow 0.0.0.x.x.10.0 ip 10.20.20.0 0.0.0.255
Kind regards
Junhan
Hello
Three changes required in this configuration.
(1) change the NAT-list access 102 as below:
access-list 102 deny ip 10.20.20.0 0.0.0.255 172.20.10.0 0.0.0.255
access-list 102 permit ip 10.20.20.0 0.0.0.255 any
(2) place the card encryption on interface point-to-point ATM.
(3) remote all of a default route.
Thank you
Mustafa
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IPSec between an IOS device and a PIX
Hello
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* 06:09:50.416 Mar 10: ISAKMP (0:1): retransmission phase 1 MM_SA_SETUP...
* 06:09:50.416 Mar 10: ISAKMP (0:1): will increment the error counter on his: broadcast
Phase 1
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ISAKMP (0): ITS been pre-shared key, using id ID_IPV4_ADDR type authentication
to return to the State is IKMP_NO_ERROR
crypto_isakmp_process_block: CBC 9.8.1.2, dest 9.2.1.2
Exchange OAK_MM
ISAKMP (0): processing KE payload. Message ID = 0
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Thanks in advance,
Krishna
The commands that I configured on 2600 as follows:
crypto ISAKMP policy 1
md5 hash
preshared authentication
Group 2
life 1200
cisco key crypto isakmp 9.2.1.2 address
ISAKMP crypto keepalive 50 10
!
life 1800 seconds crypto ipsec security association
!
Crypto ipsec transform-set esp - esp-sha-hmac krishnas
!
!
Krishnas 1 ipsec-isakmp crypto map
defined peer 9.2.1.2
game of transformation-krishnas
match address krishnas
!
!
!
!
interface FastEthernet0/0
IP 192.168.243.1 255.255.255.0
automatic speed
full-duplex
!
interface FastEthernet0/1
Description outside the interface to the cloud
bandwidth 10000
IP 9.8.1.2 255.255.0.0
automatic speed
Half duplex
card crypto krishnas
!
!
krishnas extended IP access list
IP 192.168.243.0 allow 0.0.0.255 192.168.244.0 0.0.0.255
The commands that I configured on PIX501:
IP 192.168.244.0 allow Access-list krishnas 255.255.255.0 192.168.243.0 255.255.255.0
Permitted connection ipsec sysopt
Crypto ipsec transform-set esp - esp-sha-hmac krishnas
Krishnas 1 ipsec-isakmp crypto map
card crypto krishnas 1 corresponds to the krishnas address
krishnas 1 peer set 9.8.1.2 crypto card
card crypto krishnas 1 the transform-set krishnas value
krishnas outside crypto map interface
ISAKMP allows outside
ISAKMP key cisco address 9.8.1.2 netmask 255.255.255.255 No.-xauth No.-config-mode
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ISAKMP keepalive 50 10
part of pre authentication ISAKMP policy 1
of ISAKMP policy 1 encryption
ISAKMP policy 1 md5 hash
Group of ISAKMP policy 1 2
ISAKMP policy 1 life 1200
Hello Krishna
If possible and feasible to try and downgrade the IOS 12.3 (9) to a low-level code as 12.3.6. But, make sure that the image is a single k9 and supports VPN. Also upgrade the pix to 6.3.3.
Assuming that the keys are the same, your configs find ok. Him debugs it seems its not able to pass from the phase 1 properly
could contribute to modify the code.
Concerning
Wakif
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LAN - to - LAN 837 to 3000series one-way traffic
Hello
Not even sure that there is even a way traffic. The 837 is encryting and the 3000series is done by increments Rx but nowhere on decrypt it and Tx respectively.
Tracking guides and hub configuration cisco IOS religiously.
The 837 ipsec cypto debugs seems to show that SAS created - when they actually decide to show them selves on the console.
Routing is not a problem - unless you consider static routes on the 3000. Am I supposed to create a static route to send traffic to the LAN remote (837) on the public interface? Or is it not necessary to have an itinerary as SA definition will determine the tunnel to go down?
Unfortunately no other LAN-to-LAN tnnnels on 3000 to compare these questions and I have no laboratory.
Any help would be welcome. Of course, I can provide more information, all that is necessary. Am at my wits end with this one. So simple and yet not working - have to do something stupid.
Thank you
If the tunnel is under construction and your getting the traffic in one direction and not the other, it is usually the routing.
The 831 sends traffic to the 3000 and 3000 is received, ranging from your counters. The problem is probably that the hosts behind the 3000 do not know how to return to the LAN behind the 831. Your internal network behind the 3000 will need a route to the LAN 831 that points to the interface of the 3000. The 3000 justs needs a default gateway pointing out the public interface.
On the local network of 3000, if you have not all router internal and your interior hosts are directly connected to the same hub/switch interface private 3000, then each host will need a static route to the LAN 831 that points to the private interface 3000 (this is assuming of course that the 3000 is not the default gateway for hosts (, which is usually not).
Keep in mind that if you see not all TX packets on the 3000, then the 3000 is not even see packets of it is inside the hosts which are intended for the 831 LAN, check the local routing behind the 3000 to see what is happening.
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Restricting traffic through a VPN IPsec
I have a lan-to-lan IPsec VPN (PIX501) work, but I would like to limit access to LAN A LAN B I tried to use the command 'no permit-ipsec sysopt connection' with a few changes in the ACCESS LIST bound to the external interface. I did not work. Donkey help would be welcome (doc, experience, etc.).
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WILL IPSec VPN with mapped IP question
Hello
I am trying to configure two Cisco routers (1801 & 837) for VPN IPSec de ERG. One of them has a static IP and the other is a DSL connection; so a dynamic IP address. We have a few additional static IP assigned to us through DSL connection. So I try to use a static NAT to get the VPN connection. Unfortuantely, the VPN connection does not come to the top. Can anyone help... ? The configuration of the two routers is attached here.
R1
crypto ISAKMP policy 10
BA 3des
preshared authentication
Group 5
life 3600!
XXXX address 11.22.33.44 isakmp encryption key
!
Crypto ipsec transform-set 10 ah-sha-hmac esp-3des esp-sha-hmac
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Crypto ipsec profile myprof
the value of the transform-set 10!
interface Tunnel10
IP 192.168.100.1 address 255.255.255.0
tunnel source 22.33.44.55
tunnel destination 11.22.33.44
protection of ipsec profile myprof tunnelIP nat inside source 192.168.3.1 static 22.33.44.55
R2
crypto ISAKMP policy 11
BA 3des
preshared authentication
Group 5
life 3600
!
XXXX address 22.33.44.55 isakmp encryption key
!
Crypto ipsec transform-set 10 ah-sha-hmac esp-3des esp-sha-hmac
!
Crypto ipsec profile myprof
the value of the transform-set 10!
interface Tunnel10
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tunnel source 11.22.33.44
tunnel destination 22.33.44.55
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Thank you in advance to you all...
Nimal
Hi Chris,
If public IP address 22,33,44,55 is routable R2, you can use the p2p gre + ipsec vpn. You can test it by creating an address of loopback on R1
lo10 int
22.33.44.55 Add IP 255.255.255.255
and ping 22.33.44.55 source R2 11.22.33.44.
If this public IP address is routable, you can use your configuration.
HTH,
Lei Tian
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EasyVPN and Pix501-Pix501-problem
Hello
I have a problem with my two Pix501.
I want one of them is the EasyVPN server and the other is the Client remote EasyVPN.
I configured everything as it is shown at http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a008019e6d7.shtml
I have my 'normal' network 192.168.0.0/24 which is the external interface of the two PIX in my testenvironment. EasyVPN-network 192.168.1.0/24 the otherone servers are 192.168.2.0/24.
My problem is, that the two PIX do not connect.
Here are the configs:
EasyVPN server:
6.3 (5) PIX version
interface ethernet0 car
interface ethernet1 100full
ethernet0 nameif outside security0
nameif ethernet1 inside the security100
activate 8Ry2YjIyt7RRXU24 encrypted password
2KFQnbNIdI.2KYOU encrypted passwd
hostname kr01icr02
fixup protocol dns-length maximum 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 2000 skinny
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names of
access-list 101 permit ip 192.168.1.0 255.255.255.0 192.168.2.0 255.255.255.0
pager lines 24
Outside 1500 MTU
Within 1500 MTU
192.168.0.220 outside IP address 255.255.255.0
IP address inside 192.168.1.1 255.255.255.0
alarm action IP verification of information
alarm action attack IP audit
IP local pool ippool 192.168.3.1 - 192.168.3.254
PDM logging 100 information
history of PDM activate
ARP timeout 14400
Global 1 interface (outside)
(Inside) NAT 0-list of access 101
NAT (inside) 1 0.0.0.0 0.0.0.0 0 0
Route outside 0.0.0.0 0.0.0.0 192.168.0.250 1
Timeout xlate 0:05:00
Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225
H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00
Sip timeout - disconnect 0:02:00 prompt Protocol sip-0: 03:00
Timeout, uauth 0:05:00 absolute
GANYMEDE + Protocol Ganymede + AAA-server
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AAA-server GANYMEDE + deadtime 10
RADIUS Protocol RADIUS AAA server
AAA-server RADIUS 3 max-failed-attempts
AAA-RADIUS deadtime 10 Server
AAA-server local LOCAL Protocol
Enable http server
http 192.168.1.0 255.255.255.0 inside
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No snmp Server contact
SNMP-Server Community public
No trap to activate snmp Server
enable floodguard
Permitted connection ipsec sysopt
Crypto ipsec transform-set RIGHT aes - esp esp-md5-hmac
Crypto-map dynamic dynmap 10 transform-set RIGHT
map mymap 10-isakmp ipsec crypto dynamic dynmap
mymap outside crypto map interface
ISAKMP allows outside
ISAKMP identity address
part of pre authentication ISAKMP policy 10
ISAKMP policy 10 aes encryption
ISAKMP policy 10 md5 hash
10 2 ISAKMP policy group
ISAKMP life duration strategy 10 86400
vpngroup address ippool pool mygroup
vpngroup dns 192.168.1.200 server mygroup
vpngroup wins 192.168.1.200 mygroup-Server
vpngroup mygroup by default-field cisco.com
vpngroup split tunnel 101 mygroup
vpngroup idle time 1800 mygroup
mygroup vpngroup password *.
vpngroup idle-idle time 1800
Telnet timeout 5
SSH timeout 5
Console timeout 0
dhcpd address 192.168.1.2 - 192.168.1.33 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd outside auto_config
dhcpd allow inside
Terminal width 80
Cryptochecksum:4967199c613b5553f9bc5aaa09aa02b3
: endClient:
6.3 (5) PIX version
interface ethernet0 car
interface ethernet1 100full
ethernet0 nameif outside security0
nameif ethernet1 inside the security100
activate 8Ry2YjIyt7RRXU24 encrypted password
2KFQnbNIdI.2KYOU encrypted passwd
hostname kr01icr03
fixup protocol dns-length maximum 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 2000 skinny
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol tftp 69
names of
pager lines 24
Outside 1500 MTU
Within 1500 MTU
external IP 192.168.0.221 255.255.255.0
IP address inside 192.168.2.1 255.255.255.0
alarm action IP verification of information
alarm action attack IP audit
PDM logging 100 information
history of PDM activate
ARP timeout 14400
Global 1 interface (outside)
NAT (inside) 1 0.0.0.0 0.0.0.0 0 0
Route outside 0.0.0.0 0.0.0.0 192.168.0.250 1
Timeout xlate 0:05:00
Timeout conn 01:00 half-closed 0:10:00 udp 0: CPP 02:00 0:10:00 01:00 h225
H323 timeout 0:05:00 mgcp 0: sip from 05:00 0:30:00 sip_media 0:02:00
Sip timeout - disconnect 0:02:00 prompt Protocol sip-0: 03:00
Timeout, uauth 0:05:00 absolute
GANYMEDE + Protocol Ganymede + AAA-server
AAA-server GANYMEDE + 3 max-failed-attempts
AAA-server GANYMEDE + deadtime 10
RADIUS Protocol RADIUS AAA server
AAA-server RADIUS 3 max-failed-attempts
AAA-RADIUS deadtime 10 Server
AAA-server local LOCAL Protocol
Enable http server
No snmp server location
No snmp Server contact
SNMP-Server Community public
No trap to activate snmp Server
enable floodguard
Telnet timeout 5
SSH timeout 5
Console timeout 0
dhcpd address 192.168.2.2 - 192.168.2.33 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd outside auto_config
dhcpd allow inside
vpnclient 192.168.0.220 Server
vpnclient mode network-extension-mode
vpnclient mygroup vpngroup password *.
vpnclient enable
Terminal width 80
Cryptochecksum:3caebce68a73c906150eb011e7b18f8a
: endAnyone have an idea why it doesn't work?
Thank you
Kriss
OK, thanks for the tests and the great to hear the client software vpn works great. This eliminates the problem vpn server.
You will also need to add the following on the client:
vpnclient nem-st-autoconnect
connect vpnclient
-
PIX501 customer VPN - cannot access inside the network with VPN Session
What follows is based on the config on the attached link:
PIX Ver 6.2 (3) - VPN Client 3.3.6(A) - Windows XP Client PC
We can establish the VPN to the PIX501 session, but we cannot access the network private behind the pix.
Here is the config - I can't determine why it does not work, we are desperate to get there as soon as POSSIBLE!
We have the same problem with the customer 4.0.3(c)
Thanks in advance for any help!
=======================================
AKCPIX00 # sh run
: Saved
:
6.2 (3) version PIX
ethernet0 nameif outside security0
nameif ethernet1 inside the security100
hostname AKCPIX00
domain.com domain name
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol they 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol 2000 skinny
fixup protocol sip udp 5060
names of
access-list 101 permit ip 192.168.1.0 255.255.255.0 10.0.0.0 255.255.255.0
pager lines 24
interface ethernet0 10baset
interface ethernet1 10full
Outside 1500 MTU
Within 1500 MTU
external IP address #. #. #. # 255.255.240.0
IP address inside 192.168.1.5 255.255.255.0
alarm action IP verification of information
alarm action attack IP audit
IP local pool akcpool 10.0.0.1 - 10.0.0.10
history of PDM activate
ARP timeout 14400
Global 1 interface (outside)
(Inside) NAT 0-list of access 101
NAT (inside) 1 0.0.0.0 0.0.0.0 0 0
Route outside 0.0.0.0 0.0.0.0 #. #. #. # 1
Timeout xlate 03:00
Timeout conn 01:00 half-closed 0: 10:00 udp 0:02:00 CPP 0: h323 from 10:00 0:05:00 sip 0:30:00 sip_media 0:02:00
Timeout, uauth 0:05:00 absolute
GANYMEDE + Protocol Ganymede + AAA-server
RADIUS Protocol RADIUS AAA server
AAA-server local LOCAL Protocol
the ssh LOCAL console AAA authentication
No snmp server location
No snmp Server contact
SNMP-Server Community public
No trap to activate snmp Server
enable floodguard
Permitted connection ipsec sysopt
No sysopt route dnat
Crypto ipsec transform-set esp - esp-md5-hmac RIGHT
Crypto-map dynamic dynmap 10 transform-set RIGHT
map mymap 10-isakmp ipsec crypto dynamic dynmap
mymap outside crypto map interface
ISAKMP allows outside
part of pre authentication ISAKMP policy 10
encryption of ISAKMP policy 10
ISAKMP policy 10 md5 hash
10 2 ISAKMP policy group
ISAKMP life duration strategy 10 86400
vpngroup address akcpool pool akcgroup
vpngroup dns 192.168.1.10 Server akcgroup
vpngroup akcgroup by default-domain domain.com
vpngroup split tunnel 101 akcgroup
vpngroup idle 1800 akcgroup-time
vpngroup password akcgroup *.
vpngroup idle 1800 akc-time
Telnet timeout 5
SSH #. #. #. # 255.255.255.255 outside
SSH timeout 15
dhcpd address 192.168.1.100 - 192.168.1.130 inside
dhcpd dns 192.168.1.10
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd allow inside
Terminal width 80
Cryptochecksum:XXXXX
: end
AKCPIX00 #.
Config looks good - just as domestic mine to my local network. The only thing I can think is that you may have entered commands in the wrong order - which means, you could have isakmp or encryption before the config map was complete. Write memory, then reloading the pix is a way to reset everything. If you do not want downtime:
mymap outside crypto map interface
ISAKMP allows outside
Enter these two commands should be enough to reset the ipsec and isakmp.
-
Configuration of a timeout for an IPSEC tunnel
With a VPN connection from site to site between two Cisco 837 s, is it possible that I can set up the IPSEC tunnel to be razed after a period of inactivity and, then, the tunnel is built again when more traffic is passed?
Hi mitchen
A sense (but probably not what you're looking for), to "timeout" the IPSEC Session is to use the SA IPSEC-life expectancy.
If the connection is still required (crypto acl are triggered) the connection will be restored, otherwise it will be demolished.
HIS life is without delay of inactivity but it is used to "re-authenticate/restore / offer more security" for the IPSEC tunnel on a regular basis.
With a "Newer" IOS, there is a feature called:
seconds of downtime ipsec crypto - security association
This can be created or specified by peers worldwide.
You will find all the details here:
"Remember messages useful rate."
Greetings
Jarle
Greetings
Jarle
-
Lab environment, IPSEC VPN works, but can't ping Interfaces
Hi guys
I'd appreciate a hand with a problem I have with the installation in a lab environment. I'm sure that there is something really simple, I missed... maybe you know what it is.
The fundamental problem is, since a host in "Location A" I can ping any host in the 'Place B' interface through a vpn ipsec standard except the inside of the remote pix that I am logged in via vpn. I am unable to ping/open PDM inside the interface of a host 'site A' in 'Site B', I am also unable to ping/open PDM inside 'Site B' of a host interface in"location".
Here is the structure of the network
(THE HOST'S)-(PIX501)-(HOST B) (PIX515)
If you could have a look at the configs would be great.
http://users.TPG.com.au/roblyon/501.txt
http://users.TPG.com.au/roblyon/515.txt
Thank you
Rob
In earlier versions 6.3, the behavior you report was not authorized by its design. This follows the same logic that prevents you from ping the external interface of the PIX to the location from a host inside the PIX instead of A. In general, a package needs a different input and output interface. When you try clicking a remote interface on a PIX, the package never actually gets to the buffer to send to the remote interface. Therefore, it is denied.
Now, having said that... we have a solution in version 6.3 code (as you may have guessed from my earlier statement). Take a look at the command "access management". This allows for certain functions on the inside interface of the remote PIX * if * the traffic comes through an IPSec tunnel.
http://www.Cisco.com/univercd/CC/TD/doc/product/iaabu/PIX/pix_sw/v_63/cmdref/Mr.htm#wp1137951
I hope this helps.
Scott
-
I have a working VPN connecting to of Cisco 837.
The client has a requirement for external access to RDP, POP3 and OWA... seemed pretty simple, just add:
IP nat inside source static tcp etc... but as soon as I add these PAT, internal access to these services fails immediately via the VPN to the other end (Site B).
Site to config following (Site B is running 192.168.42.x range with a virtually identical config (No. PAT of good)
!
version 12.3
no service button
horodateurs service debug uptime
Log service timestamps uptime
encryption password service
!
hostname FNN0755241374
!
logging buffered debugging 10000
no console logging
Select the secret xxxxxxxx
!
xxxxx xxxxxxxx password username
clock timezone IS 10
summer clock-time DEST recurring last Sun Oct 02:00 last Sun Mar 02:00
No aaa new-model
IP subnet zero
no ip domain search
!
!
IP cef
audit of IP notify Journal
Max-events of po verification IP 100
No ftp server enable write
!
!
!
!
crypto ISAKMP policy 10
md5 hash
preshared authentication
ISAKMP crypto key address 203.x.x.25 xxxxxxxxxxx
!
!
Crypto ipsec transform-set esp - esp-md5-hmac tweed_to_mur
!
tweed_vpn 10 ipsec-isakmp crypto map
defined by peer 203.149.73.25
Set transform-set tweed_to_mur
match address 102
!
!
!
!
interface Ethernet0
Description FNN0755241374 LAN
IP 192.168.40.254 255.255.255.0
IP nat inside
No keepalive
Hold-queue 100 on
!
ATM0 interface
no ip address
No atm ilmi-keepalive
DSL-ITU - dmt operation mode
!
point-to-point interface ATM0.1
Description 0755241374 (L2TP)
PVC 8/35
aal5mux encapsulation ppp Dialer
Dialer pool-member 1
!
!
interface FastEthernet1
no ip address
automatic duplex
automatic speed
!
interface FastEthernet2
no ip address
automatic duplex
automatic speed
!
interface FastEthernet3
no ip address
automatic duplex
automatic speed
!
interface FastEthernet4
no ip address
automatic duplex
automatic speed
!
interface Dialer1
Description 0755241374 (L2TP) PPPoa RRSM512
MTU 1400
the negotiated IP address
NAT outside IP
encapsulation ppp
Dialer pool 1
Dialer-Group 1
No cdp enable
PPP chap hostname xxxx
PPP chap password xxxx
tweed_vpn card crypto
!
overload of IP nat inside source list 103 interface Dialer1
IP nat inside source static tcp 192.168.40.1 21 203.149.71.130 21 expandable
IP nat inside source static tcp 192.168.40.1 20 203.149.71.130 20 expandable
IP nat inside source static tcp 192.168.40.1 80 203.149.71.130 80 extensible
IP nat inside source static tcp 192.168.40.4 25 203.149.71.130 25 expandable
IP nat inside source static tcp 192.168.40.4 110 203.149.71.130 110 extensible
IP nat inside source static tcp 192.168.40.4 143 203.149.71.130 143 extensible
IP nat inside source static tcp 192.168.40.4 80 203.149.67.193 80 extensible
IP classless
IP route 0.0.0.0 0.0.0.0 Dialer1
no ip address of the http server
no ip http secure server
!
Note access-list 11 * license end customer address space for NAT
access-list 11 permit 192.168.1.0 0.0.0.255
Journal of access list 99 license 203.149.69.5
Journal of access list 99 license 203.149.64.91
access-list 99 refuse any newspaper
access-list 102 permit ip 192.168.40.0 0.0.0.255 192.168.42.0 0.0.0.255
access-list 102 deny ip 192.168.40.0 0.0.0.255 any
access-list 103 deny ip 192.168.40.0 0.0.0.255 192.168.42.0 0.0.0.255
access-list 103 allow ip 192.168.40.0 0.0.0.255 any
Dialer-list 1 ip protocol allow
Server SNMP community readstring RO
SNMP-Server RO community readwritestring
Enable SNMP-Server intercepts ATS
!
Line con 0
exec-timeout 0 0
password xxxx
opening of session
no activation of the modem
StopBits 1
line to 0
line vty 0 4
access-class 99 in
exec-timeout 2 0
password xxxx
local connection
!
max-task-time 5000 Planner
!
end
FNN0755241374 #.
Kind regards
MB
This is because have priority the static NAT NAT overload control and therefore access list 103 is no longer deny these packets to be NAT had
This example configuration you get:
http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_configuration_example09186a0080094634.shtml
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Hello
I have a PIX501, that is about 2 years 6.3 (5) running. I wonder what the flow is about it. I looked through the cisco Web site, but I noticed that the PIX501 is now 100 MB outside the Interface. Was there a change to this. I am convinced that mine has a 10 MB int. I guess that it is half-duplex.
I am upgrading to the 17 MB internet connection and wonder if the PIX can handle this.
Otherwise, and since I do not think that Cisco will never bring Pix 7.0 on these units, I look something like a 871, etc.. How to compare the capabilities of FW to PIX.
Thank you
I don't think you need to worry unless you use VPN tunnel on it
When you upgrade the PIX 501 version 6.3, the inside interface is automatically upgraded to 100 Mbps duplex full. During the upgrade process, the system displays the message "interface ethernet1 can be defined to 100full."
Summary of performance
ClearText flow: up to 60 MB/s
Concurrent connections: 7 500
THE 56-bit IPsec VPN throughput: up to 6 MB/s
3DES 168 bit IPsec VPN throughput: up to 3 Mbps
128-bit AES IPsec VPN throughput: up to 4.5 Mbps
Simultaneous VPN peers: 10 *.
* Number of concurrent access from site to site or remotely (SAs) IKE Security Association support
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With the help of a PIX501 to secure and share an internet connection by cable
Hi all
I bought a PIX501 to secure my home cable modem connection and share it around my house. The PIX will act as a DHCP client (my ISP uses dynamic IP addressing) and use nat and DHCP break with my small number of inside customers.
The default setting (set using the set up of PIX) seems ok - but I did a little "do-it-yourself" after some negative PIX customers I've read here in the United Kingdom.
Specifically, I: -.
-A refused requests incoming icmp (to make the "invisible" PIX to the outside world)
-Created an access list to allow answers to my outgoing ping (something every geek network must be able to do)
-The value "string fragment 1 outside" to drop incoming fragmented packets
-Limit the number of connections to 200 and embroyonic at 50
-Activated floodguard (although I don't think this should be necessary on such a lightly loaded network)
-Compatible console logging so I have at least a bit of history of all attacks
-Reduced some of the delays of the connection of their default values
As I have a relatively new to this kind of thing anyone have specific advice or tips for a pix used this way?
Thanks in advance,
Andrew.
When you work with ICMP, remember that [icmp] command to assign ICMP messages for the pix as the host, while the [access-list] command is used to assign ICMP messages that pass through the Pix.
If you are using IPSec tunnels through the Pix, you can consider letting in string fragment of 2 sizes. IPSec creates broad enough to cause a lot of packets to be fragmented. Path MTU discovery would prevent, but many networks prevent incoming requests that allow the discovery to work. For this same reason, you can also consider allowing the Pix to get unreachable inside your host name if you the Pix end VPN tunnels. [icmp outside any unreachable towing]
Floodguard is enabled by default and does not need to be enabled. It should not be necessary on a little loaded network, but it would be necessary at the time of a DoS attack if you are Pix does authentication "uauth" of traffic entering or leaving the network.
If you are interested, the Pix can authenticate users inside before allowing the traffic leaving using RADIUS. This is useful in situations like a web server inside is attacked from outside. By the application of authentication for other traffic to leave for offending guests options are very limited. A timeout is used to trigger authentication again after some time. The [floodguard] is used to protect this feature "uauth' of the Pix.
The Pix has signatures VERY BASIC integrated IDS that you can activate by using the set of commands [assessment of intellectual property].
Enable SSH for authentication and encryption by generating an RSA key and saving it to Flash. [AC product key 1024 rsa] and [ca save all] disable telnet by removing all orders [telnet] and replace them with [ssh]. [http] should also be limited as much as possible for the administration.
-
I have two remote sites (PIX501) connection to the platform (2811). All sites can talk to all the sites. For the rays to talk, they go through the hub. I try to add a third site and I can get connectivity to the hub without problem, but not the rays. Here's an ipsec crypto see the his new site.
Hub site: 192.168.12.0/24
Remote site A: 192.168.13.0 24 (work)
Remote site B: 192.168.14.0 24 (work)
Remote site C: 192.168.15.0/24 (does not work)
There is also a diagram attached which show all this a little better.
Sounds good except that there is no site of remote controls. This network connectivity is fine and it is the hub.
130 extended access-list allow ip 192.168.15.0 255.255.255.0 192.168.12.0 255.255.255.0
local ident (addr, mask, prot, port): (192.168.15.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (192.168.12.0/255.255.255.0/0/0)Here is the command even in workplaces.
local ident (addr, mask, prot, port): (192.168.13.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (192.168.12.0/255.255.255.0/0/0)local ident (addr, mask, prot, port): (192.168.13.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (192.168.15.0/255.255.255.0/0/0)local ident (addr, mask, prot, port): (192.168.13.0/255.255.255.0/0/0)
Remote ident (addr, mask, prot, port): (192.168.14.0/255.255.255.0/0/0)As you can see it built the tunnel toward the hub and each remote site. I can not get the ASA again to do the same. It seems to me that the problem is on the hub. I removed the encryption from the interface card, built the config VPN several times, etc., etc. Please tell me I'm missing something easy. Thank you.
Collin,
You can reach IPSec SA output? Not only the heads of spokes and hub.
If you add 'reverse static set' on the roads of the coast hub will be added no matter its IPSec being upward.
I understand you have already done to ensure traffic between 192.168.13.0/24 and 192.168.15.0/24 (and vice versa) are not using a NAT.
Marcin
-
The Pix501 to VPN3030 disorders
Hello
I managed to create an IPSEC-L2L between a PIX501 and a VPN3030 tunnel. The problem I have is I can only send traffic to--> 3030 501, the 3030 does not transmit datagrams to backtrack through the tunnel. I played a bit with many configurations of static route with no luck.
I have a continuous ping from 192.168.1.4 goes 10.101.101.1 and incrementing of the acl ip on the PIX and the received counters are incremented on the 3030, but no answer!
192.168.1.0/24
|
|
|
PIX
|
|
|
69.14.28.x (pix outside ADR)
|
|
|
Interweb
|
|
|
(3030 public) 12.109.17.x
|
|
|
3030
|
|
|
10.101.101.0/24(private)
The 3030 roads are as follows:
0.0.0.0/0.0.0.0 (default) 12.109.17.x
10.101.101.0/255.255.0.0 10.101.101.1 static
That's all. I am stumpted.
VPN3030 shows the packets received but none sent (Administration - Admisiter Sessions - LAN-to-LAN)?
No filter on VPN3030 (on L2L connection or interface)?
What are you trying to ping on 10.101.101.0/24?
How about you stick a PC it with Ethereal and use it to see if the packets are getting there and if it is you answer.
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