Fall of VPN client
I've implemented a PIX to be used with the Cisco VPN client. Everything works fine. However, if I try to connect to the PIX with a second computer on the same remote site, he knocks off of the first connection. Is it possible to connect several users to a pix from the same site using the VPN client? If so, how?
PIX Firewall Version 6.3 provides a feature called "Nat Traversal". NAT Traversal enables ESP packets to pass through one or more NAT devices. This feature is disabled by default.
To enable NAT traversal, enter the following command:
ISAKMP nat-traversal [natkeepalive]
The valid values for the nat keepalive are 10 to 3600 seconds - the default value is 20 seconds.
Tags: Cisco Security
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Cisco VPN Client cannot ping from LAN internal IP
Hello
I apologize in advance for my lack of knowledge about it, but I got a version of the software running ASA 5510 7.2 (2) and has been invited to set up a site with a client, I managed to get this configured and everything works fine. In addition, I created a group of tunnel ipsec-ra for users to connect to a particular server 192.168.10.100/24 remote, even if the connection is made successfully, I can not ping any IP on the LAN 192.168.10.0/24 located behind the ASA and when I ping inside the interface on the ASA it returns the public IP address of the external interface.
If someone out there could give me a little push in the right direction, it would be much appreciated! This is the current configuration of the device.
Thanks in advance.
: Saved
:
ASA Version 7.2 (2)
!
hostname ciscoasa5510
domain.local domain name
activate the password. 123456789 / encrypted
names of
!
interface Ethernet0/0
nameif outside
security-level 0
PPPoE client vpdn group ISP
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!
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!
interface Ethernet0/2
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no level of security
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No nameif
no level of security
no ip address
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nameif management
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IP 192.168.1.1 255.255.255.0
management only
!
passwd encrypted 123456789
passive FTP mode
clock timezone GMT/UTC 0
summer time clock GMT/BDT recurring last Sun Mar 01:00 last Sun Oct 02:00
DNS server-group DefaultDNS
domain.local domain name
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pager lines 24
asdm of logging of information
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Within 1500 MTU
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ASDM image disk0: / asdm - 522.bin
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Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
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Protocol-tunnel-VPN IPSec
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value of Split-tunnel-network-list Split_Tunnel_List
username domain_ra_vpn password 123456789 encrypted
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encrypted utilisateur.123456789 password username
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the ssh LOCAL console AAA authentication
AAA authentication enable LOCAL console
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http 192.168.1.0 255.255.255.0 management
http 192.168.10.0 255.255.255.0 inside
No snmp server location
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Crypto ipsec transform-set esp-SHA-ESP-3DES-3des esp-sha-hmac
Crypto-map dynamic outside_dyn_map 20 set pfs
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peer set card crypto outside_map 20 987.65.43.21
outside_map crypto 20 card value transform-set ESP-3DES-SHA
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map outside_map 65535-isakmp ipsec crypto dynamic outside_dyn_map
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aes-256 encryption
sha hash
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life 86400
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preshared authentication
3des encryption
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life 86400
tunnel-group 987.65.43.21 type ipsec-l2l
IPSec-attributes tunnel-group 987.65.43.21
pre-shared-key *.
tunnel-group domain_vpn type ipsec-ra
tunnel-group domain_vpn General-attributes
address domain_vpn_pool pool
Group Policy - by default-domain_vpn
domain_vpn group of tunnel ipsec-attributes
pre-shared-key *.
Telnet 192.168.10.0 255.255.255.0 inside
Telnet timeout 5
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VPDN group ISP request dialout pppoe
VPDN group ISP localname [email protected] / * /
VPDN group ISP ppp authentication chap
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dhcpd dns 212.23.3.100 212.23.6.100
dhcpd lease 691200
dhcpd ping_timeout 500
domain.local domain dhcpd
!
dhcpd address 192.168.10.10 - 192.168.10.200 inside
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!
management of 192.168.1.2 - dhcpd address 192.168.1.254
enable dhcpd management
!
!
class-map inspection_default
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!
!
type of policy-card inspect dns preset_dns_map
parameters
message-length maximum 512
Policy-map global_policy
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inspect the ftp
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inspect the h323 ras
inspect the rsh
inspect the rtsp
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inspect sqlnet
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inspect sunrpc
inspect xdmcp
inspect the sip
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!
global service-policy global_policy
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Cryptochecksum:1234567890987654321
: end
Hello
Seems to me that you are atleast lack the NAT0 configuration for your VPN Client connection.
This configuration is intended to allow the VPN Client to communicate with the local network with their original IP addresses. Although the main reason that this is necessary is to avoid this traffic to the normal rule of dynamic PAT passing this traffic and that traffic is falling for the corresponding time.
You can add an ACL rule to the existing ACL NAT0, you have above and the NAT configuration should go next
Add this
permit inside_nat0_outbound to access extended list ip 192.168.10.0 255.255.255.0 192.168.11.0 255.255.255.0
Hope this helps
Let me know how it goes
-Jouni
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Hello
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