DMVPN Question ISAKMP Security Association
Hi all
I have implemented a full mesh base DMVPN, similar to the int of config used life package
http://packetlife.net/blog/2008/Jul/23/dynamic-multipoint-VPN-DMVPN/ tutorial.
I have a Hub and two rays. Everything seems to be ok functioing. I've included the config below for tunnels.
My Question is, when I do an isakmp crypto see the its, for example 2A talked, I have three ISAKMP SA with three different addresses of CBC...
How is that possible when I only have the tunnels to two other devices, the hub and rays 1? and why a foreign source address appears as an association of ISAKMP security on this router?
status of DST CBC State conn-id slot
172.16.1.2 172.16.2.2 QM_IDLE 1 0 ACTIVE
172.16.2.2 172.16.3.2 QM_IDLE 3 0 ACTIVE
172.16.2.2 172.16.1.2 QM_IDLE 2 0 ACTIVE
A similar result on the hub
status of DST CBC State conn-id slot
172.16.2.2 172.16.1.2 QM_IDLE 2 0 ACTIVE
172.16.1.2 172.16.2.2 QM_IDLE 1 0 ACTIVE
172.16.1.2 172.16.3.2 QM_IDLE 3 0 ACTIVE
Still 1 spoke only a 2
172.16.1.2 172.16.3.2 QM_IDLE 1 0 ACTIVE
172.16.2.2 172.16.3.2 QM_IDLE 2 0 ACTIVE
Crypto config for all:
crypto isakmp policy 10 authentication pre-share crypto isakmp key P4ssw0rd address 172.16.0.0 255.255.0.0 ! crypto ipsec transform-set MyTransformSet esp-aes esp-sha-hmac ! crypto ipsec profile MyProfile set transform-set MyTransformSet ! interface Tunnel0 tunnel protection ipsec profile MyProfile
Config of Tunnel hub
interface Tunnel0
10.0.100.1 IP address 255.255.255.0
dynamic multicast of IP PNDH map
PNDH network IP-1 id
tunnel source fa0/0
multipoint gre tunnel mode
Spoke 1 Tunnel Config
!
interface FastEthernet0/0
address 172.16.3.2 IP 255.255.255.0
automatic duplex
automatic speed
!
interface Tunnel0
10.0.100.2 IP address 255.255.255.0
no ip redirection
map of PNDH IP 10.0.100.1 172.16.1.2
map of PNDH IP multicast 172.16.1.2
PNDH network IP-1 id
property intellectual PNDH nhs 10.0.100.1
source of tunnel FastEthernet0/0
multipoint gre tunnel mode
Profile of tunnel MyProfile ipsec protection
Spoke 2 Config of Tunnel
!
interface FastEthernet0/0
IP 172.16.2.2 255.255.255.0
automatic duplex
automatic speed
!
interface Tunnel0
IP 10.0.100.3 255.255.255.0
no ip redirection
map of PNDH IP 10.0.100.1 172.16.1.2
map of PNDH IP multicast 172.16.1.2
PNDH network IP-1 id
property intellectual PNDH nhs 10.0.100.1
source of tunnel FastEthernet0/0
multipoint gre tunnel mode
Profile of tunnel MyProfile ipsec protection
SRC and DST IP addresses indicate that was author and answering machine. They do not represent information outlet (in the traditional sense of the term).
You could get in double sessions of the two scenarios IKE, are the most common.
(1) the negotiation started at both ends "simultaneously".
(2) renegotiation of IKE.
What is strange to me, is that you seem to have initiated session and responsed by the hub.
What I would do, is to add:
-ip server only PNDH (on the hub, it is not a provided ASR)
-DPD (on all devices).
Assures us that this hub initiates not anything in the PNDH and useless/deceased sessions are torn down eventually.
Tags: Cisco Security
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Missing Captain obvious - Site to site IPSEC, any ISAKMP security association
So I try to set up a site to IPsec and I fell at the first hurdle. I checked my config so many times and I can't see a problem.
Two routers can ping each other so connectivity is there.
Two routers have static routes to the router's local ip range against pointing out the wan interface.
Both routers have ACL (155) to the direction of movement of the other router and is associcated with the cryptomap.
Two routers have the map on the external interface.
However, any attempt to put in place a SA. Debugging on both shows nothing, show isakmp crypto that his shows nothing.
Please help us save my sanity!
Router 1
Current configuration : 4652 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption !! boot-start-marker boot-end-marker ! logging message-counter syslog no logging buffered! aaa new-model ! aaa authentication login TERMINAL-LINES local ! aaa session-id common ! dot11 syslog ip source-route ! ! ip cef ip dhcp excluded-address 192.168.30.1 192.168.30.100 ip dhcp excluded-address 192.168.31.1 192.168.31.100 ip dhcp excluded-address 192.168.32.1 192.168.32.100 ! ip dhcp pool DynamicPool network 192.168.30.0 255.255.255.0 dns-server 192.168.30.1 8.8.8.8 208.67.222.222 default-router 192.168.30.1 lease 0 0 15 ! ip dhcp pool Tony-PC host 192.168.30.10 255.255.255.0 client-identifier 0100.1e8c.6d85.3e lease infinite ! ip dhcp pool VisitorPool network 192.168.31.0 255.255.255.0 dns-server 8.8.8.8 8.8.4.4 208.67.222.222 default-router 192.168.31.1 lease 0 0 15 ! ip dhcp pool GuestPool network 192.168.32.0 255.255.255.0 dns-server 8.8.8.8 8.8.4.4 208.67.222.222 default-router 192.168.32.1 lease 0 0 15 ! ! ip host switch 192.168.30.5 ip host router 192.168.30.1 ip host unifi 212.250.84.221 ip host tony-pc 192.168.30.10 ip name-server 8.8.8.8 ip name-server 8.8.4.4 ip name-server 208.67.222.222 ip name-server 208.67.220.220 no ipv6 cef ! multilink bundle-name authenticated ! voice-card 0 ! crypto isakmp policy 1 authentication pre-share crypto isakmp key H8sh8Js7dn2jJ address *ROUTER2-IP* ! crypto ipsec transform-set C33-MH-SET esp-aes esp-sha-hmac ! crypto map C33-MH-MAP 1 ipsec-isakmp set peer *ROUTER2-IP* set transform-set C33-MH-SET match address 155 ! ip ssh port 8083 rotary 1 ! interface GigabitEthernet0/0 ip address *ROUTER1-IP* 255.255.255.248 ip nat outside ip virtual-reassembly duplex auto speed auto crypto map C33-MH-MAP ! interface GigabitEthernet0/1 no ip address shutdown duplex auto speed auto no mop enabled ! interface GigabitEthernet1/0 ip address 192.168.30.1 255.255.255.0 ip access-group native in ip nat inside ip virtual-reassembly ! interface GigabitEthernet1/0.1 encapsulation dot1Q 40 ip address 192.168.31.1 255.255.255.0 ip access-group visitor in ip nat inside ip virtual-reassembly ! interface GigabitEthernet1/0.2 encapsulation dot1Q 50 ip address 192.168.32.1 255.255.255.0 ip access-group guest in ip nat inside ip virtual-reassembly ! ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0 217.137.232.209 ip route 192.168.20.0 255.255.255.0 GigabitEthernet0/0 no ip http server no ip http secure-server ! ip dns server ip nat inside source list 100 interface GigabitEthernet0/0 overload ip nat inside source static tcp 192.168.30.10 3389 interface GigabitEthernet0/0 3389 ip nat inside source static udp 192.168.30.10 3389 interface GigabitEthernet0/0 3389 ! ip access-list extended guest deny ip 192.168.32.0 0.0.0.255 192.168.30.0 0.0.0.255 deny ip 192.168.32.0 0.0.0.255 192.168.31.0 0.0.0.255 permit ip any any ip access-list extended management permit ip 192.168.30.0 0.0.0.255 any permit ip 192.168.20.0 0.0.0.255 any permit ip 212.250.84.0 0.0.0.255 any permit ip 194.62.232.0 0.0.0.255 any ip access-list extended native deny ip 192.168.30.0 0.0.0.255 192.168.31.0 0.0.0.255 deny ip 192.168.30.0 0.0.0.255 192.168.32.0 0.0.0.255 permit ip any any ip access-list extended visitor deny ip 192.168.31.0 0.0.0.255 192.168.30.0 0.0.0.255 deny ip 192.168.31.0 0.0.0.255 192.168.32.0 0.0.0.255 permit ip any any ! access-list 100 permit ip 192.168.0.0 0.0.255.255 any access-list 100 deny ip any 192.168.0.0 0.0.255.255 access-list 155 permit ip 192.168.30.0 0.0.0.255 192.168.20.0 0.0.0.255 dialer-list 1 protocol ip permit ! control-plane ! ccm-manager fax protocol cisco ! mgcp fax t38 ecm ! line con 0 line aux 0 line 66 no activation-character no exec transport preferred none transport input all transport output pad telnet rlogin lapb-ta mop udptn v120 ssh line vty 0 4 access-class management in login authentication TERMINAL-LINES transport input all line vty 5 10 access-class management in login authentication TERMINAL-LINES rotary 1 transport input all ! scheduler allocate 20000 1000 end
Router 2
Current configuration : 6059 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! boot-start-marker boot-end-marker ! aaa new-model ! aaa session-id common ! no ip cef ip dhcp use vrf connected no ip dhcp conflict logging ip dhcp excluded-address 192.168.20.1 192.168.20.100 ! ip dhcp pool DynamicPool network 192.168.20.0 255.255.255.0 dns-server 192.168.20.1 8.8.8.8 208.67.222.222 default-router 192.168.20.1 lease 0 0 15 ! ip dhcp pool HTPC host 192.168.20.10 255.255.255.0 client-identifier 011c.6f65.43fb.ca lease infinite ! ip dhcp pool Wifi1 host 192.168.20.20 255.255.255.0 client-identifier 0104.18d6.8656.d6 lease infinite ! ip dhcp pool Wifi2 host 192.168.20.21 255.255.255.0 client-identifier 0104.18d6.6e44.00 lease infinite ! ip dhcp pool Wifi3 host 192.168.20.22 255.255.255.0 client-identifier 0144.d9e7.7471.00 lease infinite ! ip dhcp pool LivingRoomCC host 192.168.20.30 255.255.255.0 client-identifier 016c.adf8.9eed.44 ! 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Save your sanity, it's put a big :-) but--
You must change your NAT ACL IE. they should read-
Router 1-
"access-list 100 deny ip 192.168.30.0 0.0.0.255 192.168.20.0 0.0.0.255.
"access-list 100 permit ip 192.168.0.0 0.0.255.255 any."Router 2-
"access-list 100 deny ip 192.168.20.0 0.0.0.255 192.168.30.0 0.0.0.255.
"access-list 100 permit ip 192.168.0.0 0.0.255.255 any."Jon
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Life of the ISAKMP Security Association
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Like to know the process of ITS expiration date and renew, it will cause the VPN Goes?
and how long preshared key can support?
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Before the expiry of SA, a new SA will be negotiated and implemented, therefore, as soon as the old SA has expired, there are already HIS new, which will be done automatically. So to answer your question, to generate a new key SA, the VPN tunnel won't go down.
The life expectancy of SA for the phase 2 can be configured for a maximum of 214783647 seconds (default is 28800 seconds).
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Hello
I have deploy a dmvpn with two of the hub topology and several rays, after the spokes and the hub, I did a reboot in the hub to see if this drug works after rebbot in the hub, but I noticed that after the rebbot the tunnel in the hub is not come, the only way to raise the tunnel had to erase dmvpn static session in rays , during this time the hub to continue giving a message:
ISAKMP: ignoring the request to send delete notify (no ISAKMP security association) src 213.10.10.10 dst 213.58.10.10.14 for SPI 0xC15C587F
IOS:12.4.11 T 1
2821
2811
Someone can help me.
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Hello
Please make sure you have ISAKMP KeepAlive on the hubs and spokes, and once configured, please test again and see if it improves. What is happeneing is probably when the hub is restarted, speak it does not clear the tunnel is based on the SAs to timeout. When delete us the SAs on the RADIUS, the problem goes away. Configure ISAKMP KeepAlive should we work around this problem.
HTH,
Please rate if this can help.
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DMVPN question "" change btwn CONF_XAUTH &; MM_NO_STATE ".
Hi all
can you please help on below: thanks in advance.
HQ which is configured to accept remote vpn client using crypto map and also it is configured for dynamic vpn with branch.
Static public IP HQ is 82.114.179.120, tunnel 10 172.16.10.1 and local lan ip is 192.168.1.0
Branch has dynamic public ip, 10 ip 172.16.10.32 tunnel local lan is 192.168.32.0 It is also configured by using tunnel 0 with an another CA that works very well.
Directorate-General for the Lan (192.168.32.0) is required to access lan (192.168.1.0) HQ...
Debug files attached
HQ:
AAA authentication login local acs
AAA authorization network local acs
!
AAA - the id of the joint session
!
IP cef
!8.8.8.8 IP name-server
No ipv6 cef
!
Authenticated MultiLink bundle-name Panel
!redundancy
!VDSL 0/1/0 controller
!cryptographic keys ccp-dmvpn-keyring keychain
pre-shared key address 0.0.0.0 0.0.0.0 key [email protected] / * /
!
crypto ISAKMP policy 10
BA 3des
md5 hash
preshared authentication
Group 2
ISAKMP crypto 5 3600 keepalive
ISAKMP crypto nat keepalive 3600
ISAKMP xauth timeout 60 crypto!
ISAKMP crypto client configuration group NAMA
namanama key
pool mypool
ACL 101
Save-password
Profile of crypto isakmp dmvpn-ccp-isakmprofile
CCP-dmvpn-keyring keychain
function identity address 0.0.0.0
!
Crypto ipsec transform-set esp-3des esp-md5-hmac test
tunnel mode
Crypto ipsec transform-set ESP-AES-MD5-esp - aes esp-md5-hmac comp-lzs
transport mode
!
Profile of crypto ipsec CiscoCP_Profile1
game of transformation-ESP-AES-MD5
define the profile of isakmp dmvpn-ccp-isakmprofile
!card dynamic crypto map 10
Set transform-set test
market arriere-route
!
the i-card card crypto client authentication list acs
card crypto i-card isakmp authorization list acs
card crypto i-map client configuration address respond
card crypto i-card 10 isakmp ipsec dynamic map!
interface Tunnel10
bandwidth 1000
address 172.16.10.1 IP 255.255.255.0
no ip redirection
IP 1400 MTU
authentication of the PNDH IP DMVPN_NW
dynamic multicast of IP PNDH map
PNDH id network IP-100000
property intellectual PNDH holdtime 360
IP tcp adjust-mss 1360
delay of 1000
Shutdown
source of Dialer1 tunnel
multipoint gre tunnel mode
tunnel key 100000
Tunnel CiscoCP_Profile1 ipsec protection profile
!
the Embedded-Service-Engine0/0 interface
no ip address
Shutdown
!
interface GigabitEthernet0/0
IP 192.168.0.254 255.255.255.0
IP nat inside
IP virtual-reassembly in
automatic duplex
automatic speed
!
interface GigabitEthernet0/1
IP 192.168.1.1 255.255.255.0
IP nat inside
IP virtual-reassembly in
automatic duplex
automatic speed
!
ATM0/1/0 interface
DSL Interface Description
no ip address
No atm ilmi-keepalive
PVC 8/35
aal5snap encapsulation
PPPoE-client dial-pool-number 1!
interface Dialer0
no ip address
!
interface Dialer1
the negotiated IP address
IP mtu 1492
NAT outside IP
IP virtual-reassembly in
encapsulation ppp
Dialer pool 1
PPP authentication chap callin pap
PPP chap hostname nama20004
password PPP chap 0 220004
PPP pap sent-username nama20004 password 0 220004
i-crypto map
!
IP local pool mypool 192.168.30.1 192.168.30.100
IP forward-Protocol ND
!
IP http server
IP http secure server
!
overload of IP nat inside source list 171 interface Dialer1
IP route 0.0.0.0 0.0.0.0 Dialer1
IP route 192.168.32.0 255.255.255.0 172.16.10.32
!
access-list 101 permit ip 192.168.0.0 0.0.0.255 192.168.30.0 0.0.0.2
access-list 101 permit ip 192.168.1.0 0.0.0.255 192.168.30.0 0.0.0.2
access-list 101 permit ip 192.168.1.0 0.0.0.255 192.168.32.0 0.0.0.2
access-list 101 permit ip 192.168.1.0 0.0.0.255 192.168.35.0 0.0.0.2
access-list 171 deny ip 192.168.0.0 0.0.0.255 192.168.30.0 0.0.0.2
access-list 171 refuse ip 192.168.1.0 0.0.0.255 192.168.30.0 0.0.0.2
access-list 171 refuse ip 192.168.1.0 0.0.0.255 192.168.35.0 0.0.0.2
access-list 171 refuse ip 192.168.1.0 0.0.0.255 192.168.32.0 0.0.0.2
access ip-list 171 allow a whole
Dialer-list 2 ip protocol allow
!HQ #sh cry isa his
IPv4 Crypto ISAKMP Security Association
DST CBC conn-State id
82.114.179.120 78.137.84.92 CONF_XAUTH 1486 ACTIVE
82.114.179.120 78.137.84.92 MM_NO_STATE 1483 ACTIVE (deleted)
82.114.179.120 78.137.84.92 MM_NO_STATE 1482 ACTIVE (deleted)See the branch to execute:
!
!
crypto ISAKMP policy 1
BA 3des
preshared authentication
Group 2
!
crypto ISAKMP policy 11
BA 3des
md5 hash
preshared authentication
Group 2
ISAKMP crypto key [email protected] / * / address 82.114.179.105
ISAKMP crypto key [email protected] / * / address 82.114.179.120
ISAKMP crypto keepalive 10 periodicals
!
!
Crypto ipsec transform-set ESP-AES-MD5-esp - aes esp-md5-hmac comp-lzs
transport mode
Crypto ipsec transform-set esp - aes Taiz esp-md5-hmac comp-lzs
transport mode
!
Profile of crypto ipsec CiscoCP_Profile1
game of transformation-ESP-AES-MD5
!
Profile of crypto ipsec to Taiz-profile-
the value of the transform-set in Taiz
!
interface Tunnel0
bandwidth 1000
IP 172.16.0.32 255.255.255.0
IP 1400 MTU
authentication of the PNDH IP DMVPN_NW
map of PNDH 172.16.0.1 IP 82.114.179.105
PNDH id network IP-100000
property intellectual PNDH holdtime 360
property intellectual PNDH nhs 172.16.0.1
IP tcp adjust-mss 1360
delay of 1000
source of Dialer0 tunnel
tunnel destination 82.114.179.105
tunnel key 100000
Tunnel CiscoCP_Profile1 ipsec protection profile
!
interface Tunnel10
bandwidth 1000
IP 172.16.10.32 255.255.255.0
IP 1400 MTU
authentication of the PNDH IP DMVPN_NW
property intellectual PNDH 172.16.10.1 card 82.114.179.120
PNDH id network IP-100000
property intellectual PNDH holdtime 360
property intellectual PNDH nhs 172.16.10.1
IP tcp adjust-mss 1360
delay of 1000
source of Dialer0 tunnel
tunnel destination 82.114.179.120
key to tunnel 22334455
tunnel of ipsec to Taiz-profile protection
!
interface Ethernet0
no ip address
Shutdown
!
ATM0 interface
no ip address
No atm ilmi-keepalive
!
point-to-point interface ATM0.1
PVC 8/35
PPPoE-client dial-pool-number 1
!
!
interface FastEthernet0
# CONNECT TO LAN description #.
no ip address
!
interface FastEthernet1
# CONNECT TO LAN description #.
no ip address
!
interface FastEthernet2
# CONNECT TO LAN description #.
no ip address
!
interface FastEthernet3
# CONNECT TO LAN description #.
no ip address
!
interface Vlan1
# LAN INTERFACE description #.
customer IP dhcp host name no
IP 192.168.32.254 255.255.255.0
IP nat inside
IP virtual-reassembly in
IP tcp adjust-mss 1412
!
interface Dialer0
the negotiated IP address
IP mtu 1452
NAT outside IP
IP virtual-reassembly in
encapsulation ppp
Dialer pool 1
Dialer-Group 1
PPP authentication chap callin pap
PPP chap hostname mohammadaa
password PPP chap 0-123456
PPP pap sent-name of user mohammadaa password 123456 0
!
IP forward-Protocol ND
IP http server
10 class IP http access
local IP http authentication
no ip http secure server
!
the IP nat inside source 1 interface Dialer0 overload list
IP route 0.0.0.0 0.0.0.0 Dialer0
Route IP 192.168.0.0 255.255.255.0 172.16.0.1
IP route 192.168.1.0 255.255.255.0 172.16.10.1
!
auto discovering IP sla
Dialer-list 1 ip protocol allow
!
access-list 1 permit 192.168.32.0 0.0.0.255
access-list 10 permit 192.168.1.0 0.0.0.255
access-list 10 permit 192.168.0.0 0.0.0.255
!Branch #sh cry isa his
IPv4 Crypto ISAKMP Security Association
DST CBC conn-State id
82.114.179.120 78.137.84.92 MM_NO_STATE ACTIVE 2061 (deleted)
82.114.179.120 78.137.84.92 MM_NO_STATE 2060 ACTIVE (deleted)Mohammed,
No probs, ensure safety.
The config you home has only one profile of IKE again. i.e. your DMVPN and ezvpn fall into the same basket.
What you need is a clean separation.
In the example you have
crypto isakmp profile VPNclient match identity group hw-client-groupname client authentication list userauthen isakmp authorization list hw-client-groupname client configuration address respond
which is then linked to:crypto dynamic-map dynmap 10 set isakmp-profile VPNclient reverse-route set transform-set strong
and separately a Profile of IKE DMVPN:
crypto isakmp profile DMVPN keyring dmvpnspokes match identity address 0.0.0.0
linked to your profile DMVPN IPsec:
crypto ipsec profile cisco set security-association lifetime seconds 120 set transform-set strong set isakmp-profile DMVPN
You apply the same logic here and clean to the top of your current config (i.e. move the features that you have applied to the level of the crypto map to your new profile of IKE).
M.
-
HelloI have problems to configure an ipsec L2L with my 1921 tunnel and ASA.I have to use aggressive mode as the 1921 does not have a fixed IP.Phase 1 of IKE's fine, but then I get the following message:5 11:00:14 Group April 1, 2014 713119 = CIT-TEST, IP = YYY. YYY. YYY. YYY, PHASE 1 COMPLETED5 11:00:14 Group April 1, 2014 713904 = CIT-TEST, IP = YYY. YYY. YYY. YYY proposals, any IPSec security association has deemed unacceptable!and the tunnel manages not to come.So I guess it's one about identifyed networks, so I suspect the transformation defined not to be good.ASA:# Crypto card #.address the crypto dynamic-map OUTSIDE_cryptomap_65535.130 SYSTEM_DEFAULT_CRYPTO_MAP 130Crypto-map dynamic 130 SYSTEM_DEFAULT_CRYPTO_MAP set transform-set ESP-AES-256-SHA ikev186400 seconds, crypto than dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 130 the duration value of security-association# Identification of the traffic.Access extensive list ip 10.30.2.0 Outside_cryptomap_65535.130 allow 255.255.255.0 10.30.42.0 255.255.255.0# Crypto card #.address the crypto dynamic-map OUTSIDE_cryptomap_65535.130 SYSTEM_DEFAULT_CRYPTO_MAP 130Crypto-map dynamic 130 SYSTEM_DEFAULT_CRYPTO_MAP set transform-set ESP-AES-256-SHA ikev186400 seconds, crypto than dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 130 the duration value of security-associationAnd on the 1921:door-key crypto LOCALpre-shared key address XXX.XXX.XXX.XXX key mykey!crypto ISAKMP policy 1BA aes 256preshared authenticationGroup 2ISAKMP crypto identity hostnameProfile of crypto isakmp AGGRESSIVE-ASALOCAL Keyringidentity function address XXX.XXX.XXX.XXX 255.255.255.255aggressive mode!!Crypto ipsec transform-set aes - esp hmac-sha256-esp gsmtunnel mode!!!Crypto map gsm2 isakmp-ASA-AGGRESSIVE profilegsm2 20 ipsec-isakmp crypto mapdefined peer XXX.XXX.XXX.XXXSet transform-set gsmmatch address 103!access-list 103 allow ip 10.30.42.0 0.0.0.255 10.30.2.0 0.0.0.255But tried with different combos on the 1921 but no luck. What Miss me?Could anyone help with the transformation on the 1921 set command, it's a little different than on the ASA.Can anyone help?Best regards
You don't show us the configuration (if one is called) for Phase 2 of ASAs transform-set.
There should be an installer matching your 1921 something as in this example:
http://www.Cisco.com/c/en/us/support/docs/security/ASA-5500-x-series-NEX...
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Claire ISAKMP and IPSec in PIX Security Association
Hello
How do you delete the ISAKMP and IPSec security associations in a PIX? (As you do in the IOS using the commands 'clear' crypto..)
Thank you------Naman
The type of config mode:
Claire ipsec his
Claire isakmp his
I hope this helps.
Cody Rowland
Infrastructure engineer
-
IPsec Security Association keep it up
Hello community,
Customer has about 50 distance 871 s (home) with IP phones.
Main site has ASA 5510 sheltering the CUCM.
Problem is...
When user1 calls user2 there no audio data (since there is no built between remote users IPsec security association).
The fact that user1 called user2 built IPsec between ROUTER1 and ASA, but since there is no IPsec security association for users between ROUTER2 and ASA, audio fails.
If User2 calls user1 now, then the call is successful, because the SAs are built:
IPsec security association between ROUTER1 and ASA for the traffic of user1 and user2
IPsec security association between ROUTER2 and ASA for the user1 user2 traffic
So, the problem is that both parties must open up traffic to make this work.
What I did to solve the problem, is to configure IP SLA on routers to send a PING packet every 10 minutes at their home by peers (thus keeping the SAs between remote sites all the time).
IP SLA works, but I'm looking for a better way to solve the problem of having to manually launch the traffic (DMVPN or running as one routing protocol does not work with the ASA through the tunnel).
I guess to increase life expectancy IPsec Security Association is another option.
Looking to get recommendations, thanks!
Federico.
Hi Federico,.
Have you considered EzVPN/Easy VPN, with ASA like server EzVPN configuration and Clients (routers/ASA5505) as clients of EzVPN? This would create the tunnel as soon as it is configured.
In addition, apart from the increase in the life expectancy of the AA (which is basically report to generate a new key stage 2), you can configure vpn-idle-timeout to be 'none' in the group-policy framework of the SAA.
Any thoughts?
Kind regards
Praveen
-
Answers and questions of security
Hi all. I can't change my password because I forgot the security answer. There is no Reset button.
How can you change security Q and r when the iPad Pro has no Reset button?
Follow these instructions
If you forgot the answers to your questions of security of Apple ID - Apple Support
-
I am trying to access the security settings in my Apple ID, but due to too many failed attempts to answer my questions of security, this option is blocked. How can I unlock it?
You can see this page if your identifier Apple is locked to see how to solve this problem.
https://support.Apple.com/en-us/HT204106
If you cannot solve this way, please contact support at the link below!
-
I just forgot the answers of my questions of security and rescue email
I just forgot the answers to my questions of security and the emergency email, can someone help me please?
You have to ask Apple to reset your security questions. To do this, click here and choose a method; If this page does not list one for your country or if you are unable to call, complete and submit this form.
(138736)
-
I do not remember questions of security, or when I created the
How to reset my security questions
Hello. Visit this link:
If you forgot the answers to your questions of security of Apple ID - Apple Support
-
change the lives of the IPSEC Security Association
Hello
If I use the
order of the life of-association of IPSEC crypto security, that does not hold for all customers? I'm trying to change it only for an IPSEC security association and I don't want to interrupt any existing VPN client.
is it possible to put it for a client?
Thank you!
Lisa G
You can change it in a configuration card crypto for each individual connection. Since you don't specify what your vpn device ends on however, I can't give you a specific example.
the command you gave is global, for which there is already a default lifetime. 'local' lifespans for individual crypto cards override this value.
also, if two peers differ in their lives during the negotiation, they are "supposed to" choose the smallest value, but still not connect.
-
Question about the life of the IPSec Security Association
Hi all
I'm confused about life. A book, they said that you should service life of the peer to keep two exact same, otherwise you can not establish the tunnel. But I saw another book says you can use different to life (time interval or byte count), two peers will choose the lower one.
Please help me. Thanks in advance.
Banlan
There are two lives involved with IPSec, Phase 1 (ISAKMP) and Phase 2 (IPSec) connections.
With the Phase 1 tunnel, if the initiator has a longer life than that the answering machine, the answering machine does not accept the connection, then it is certainly preferable to keep your the same Phase 1 lives.
Phase 2, life will be negotiated at the lower of the two values regardless of intiates, if it is not serious. Always advised to keep living the same since you can run questions of negotiation with devices from different vendors.
-
IPSec security association local crypto Start
Hi all
This is my first post here, and I hope not to violate the rules of the forum. I have a problem with ipsec (actually it's my first "date" with Cisco crypto tools). Here's the situation: I got 2 cisco routers (1751) with IOS c1700-advsecurityk9 - mz.123 - 19. I'm tryin to secure the connection between two devices (in laboratory conditions) with ipsec in tunnel mode. Everything works fine, until my interest to start over GRE tunnel Cryptography. When I go up the tunnel, I put the 'encryption
card' to the tunnel device, and my troubles begin. The traffic between two endpoits (correspondence with the access list for traffic 'interesting') disappeared. After a little investigation, I found this: (I'll paste part of the configuration of the router 'A')
crypto ISAKMP policy 5
BA aes 256
preshared authentication
life 360
address cryptographic key crypto isakmp 20.20.20.2
!
Crypto ipsec transform-set esp - aes 256 esp-md5-hmac London
Crypto ipsec df - bit clear
!
London 5-isakmp ipsec crypto map
defined by peer 20.20.20.2
game of transformation-London
corresponds to the crypt of the address
!
Tunnel1 interface
bandwidth 100
IP 20.20.20.1 255.255.255.252
IP 1400 MTU
route IP cache flow
load-interval 30
CDP enable
tunnel source 10.10.10.4
tunnel destination 10.10.10.3
key 1 tunnel
tunnel path-mtu-discovery
card crypto London
!
Paris #show crypto ipsec his
Interface: Tunnel1
Tag crypto map: London, local addr. 10.10.10.4
current_peer: 20.20.20.2:500
[Cup]
endpt local crypto. : 10.10.10.4, remote Start crypto. : 20.20.20.2
Path mtu 1400, ip mtu 1400, ip mtu IDB Tunnel1
current outbound SPI: 0
[Cup]
I think that the question is coming because of "Local addr. 10.10.10.4 "it could be ' 20.20.20.1 '.
and the "crypto local Start: 10.10.10.4 'must be ' 20.20.20.1'." So I blame this for a reason of the case
because the tunnel must be done between 20.20.20.1 and 20.20.20.2 NOT between 10.10.10.4 <=>20.20.20.2.
Have anyone an idea why this is happen?
At the other site, the sittuation is the same:
crypto ISAKMP policy 5
BA aes 256
preshared authentication
life 360
address cryptographic key crypto isakmp 20.20.20.1
!
!
Crypto ipsec transform-set esp - aes 256 esp-md5-hmac paris
Crypto ipsec df - bit clear
!
map of Paris 5 ipsec-isakmp crypto
defined by peer 20.20.20.1
transformation-betting game
corresponds to the crypt of the address
!
Tunnel1 interface
bandwidth 100
IP 20.20.20.2 255.255.255.252
IP 1400 MTU
no ip-cache cef route
load-interval 30
CDP enable
tunnel source 10.10.10.3
tunnel destination 10.10.10.4
key 1 tunnel
card crypto Paris
!
London #show crypto ipsec his
Interface: Tunnel1
Tag crypto map: Paris, local addr. 10.10.10.3
current_peer: 20.20.20.1:500
[Cup]
local crypto endpt. : 10.10.10.3, remote Start crypto. : 20.20.20.1
Path mtu 1400, ip mtu 1400, ip mtu IDB Tunnel1
current outbound SPI: 0
[Cup]
Once again the same question, "local addr. 10.10.10.3' and ' Start local crypto. : 10.10.10.3'.
London #debug crypto ipsec
Sep 20 16:23:30.075: IPSEC (sa_request):,.
(Eng. msg key.) Local OUTGOING = 10.10.10.3, distance = 20.20.20.1.
Sep 20 16:24:00.071: IPSEC (key_engine): request timer shot: count = 1,.
local (identity) = 10.10.10.3, distance = 20.20.20.1.
local_proxy = 192.168.252.0/255.255.255.252/0/0 (type = 4),
remote_proxy = 192.168.253.0/255.255.255.0/0/0 (type = 4)
London isakmp crypto #show her
conn-id State DST CBC slot
20.20.20.1 10.10.10.3 MM_KEY_EXCH 2 0
The IKE/ISAKMP is trying to establish a connection with BAD source address, and the IPSec Phase2 could NOT been finished.
All suggestions are welcome!
Thanks in advance for your efforts to answare this question.
Best regards
Danail Petrov
P.s. excuse my English
Danail=>
I am pleased that you have found a solution to your problem. Tunnel protection is a good feature, and I'm happy that you found.
Thanks for posting to the forum and stating that you have a solution and that is the solution. It allows the most useful forum when we read about a problem and then see what fixed the problem.
I encourage you to continue your participation in the forum.
HTH
Rick
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