08-03-2012 06:55 PM - edited 02-21-2020 06:15 PM
Hi Folks,
Ok so I'm going crazy here. I have a IPSec tunnel that is working in one direction.
Below is the router config from the side that can connect to the other side perfectly. I believe the issue is with this router as while I was waiting on delivery for the ASA I had an SRP527W sitting in it's place and had exactly the same problem.
On one side I have a 887VA router and the other an ASA5505.
The network behind the 887VA can access the remote site perfectly, backup services are traversing the link as are web interfaces for applications. In the other direction I can ping hosts but cannot connect. What else is interesting is if from the remote site I attempt to connect to a particular device that performs a port redirect the remote site browser gets so far as being redirected to port 5000 but then hangs.
I am seeing some very generic packet drop debug notices on the 887va on the NAT-ACL access list but I think this is as it should be as it is dropping the tunnel traffic from the NAT'ing.
The config for the router is here, I will post the ASA config when I get to the other site shortly but I am convinced the issues is on this device, all the crypto configurations match.
I have looked at the MTU's on each side, the path MTU on both sides is 1492. The asa does say the media MTU is 1500 but I believe that is the ADSL link so shouldnt matter?
I even went so far as installing CCP and testing the VPN. It says the tunnel is up. It did state a failure:
A ping with data size of this VPN interface MTU size and 'Do not Fragment' bit set to the other end VPN device is failing. This may happen if there is a lesser MTU network which drops the 'Do not fragment' packets.
with recommended action:
1)Contact your ISP/Administrator to resolve this issue. 2)Issue the command 'crypto ipsec df-bit clear' under the VPN interface to avoid packets drop due to fragmentation.
I did 2 with no effect.
(Addresses etc have been changed to protect the innocent.)
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname XXXX
!
boot-start-marker
boot-end-marker
!
!
logging buffered 65535
logging console informational
!
no aaa new-model
!
memory-size iomem 10
clock timezone ESTime 10 0
crypto pki token default removal timeout 0
!
!
!
crypto pki certificate chain TP-self-signed-
certificate self-signed 01
quit
ip source-route
!
!
!
!
!
ip cef
no ip bootp server
ip domain name ninterface.com
ip name-server 192.
ip name-server 192.
ip inspect name CBAC appleqtc
ip inspect name CBAC dns
ip inspect name CBAC esmtp
ip inspect name CBAC http
ip inspect name CBAC https
ip inspect name CBAC ftp
ip inspect name CBAC h323
ip inspect name CBAC isakmp
ip inspect name CBAC l2tp
ip inspect name CBAC icmp
ip inspect name CBAC imap
ip inspect name CBAC imaps
ip inspect name CBAC ftps
ip inspect name CBAC ntp
ip inspect name CBAC sip
ip inspect name CBAC sip-tls
ip inspect name CBAC ssh
ip inspect name CBAC tcp
ip inspect name CBAC udp
login block-for 300 attempts 4 within 60
login delay 7
login quiet-mode access-class OutMan
login on-failure log
no ipv6 cef
!
!
multilink bundle-name authenticated
license udi pid CISC
!
!
archive
log config
hidekeys
username UNAME SECRET PASS
!
!
!
!
controller VDSL 0
operating mode adsl2 annex A
!
ip ssh version 2
!
!
crypto isakmp policy 5
encr 3des
authentication pre-share
lifetime 28800
!
crypto isakmp policy 10
authentication pre-share
lifetime 28800
crypto isakmp key ISAKMPKEY address 14.14.14.14
!
!
crypto ipsec transform-set TRANSF esp-3des esp-sha-hmac
!
crypto map CRYMAP 101 ipsec-isakmp
set peer 14.14.14.14
set transform-set TRANSF
match address 101
reverse-route
!
!
!
!
!
interface Loopback0
no ip address
!
interface Ethernet0
no ip address
shutdown
no fair-queue
!
interface ATM0
description --- Internode ADSL ----
no ip address
no ip route-cache
load-interval 30
no atm ilmi-keepalive
!
interface ATM0.1 point-to-point
no ip route-cache
pvc 8/35
tx-ring-limit 3
encapsulation aal5snap
pppoe-client dial-pool-number 1
!
!
interface FastEthernet0
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface Vlan1
description Management Interface
ip address 10.0.1.5 255.255.255.0
ip mtu 1452
ip nat inside
ip virtual-reassembly in
no ip route-cache cef
ip tcp adjust-mss 1420
!
interface Dialer0
no ip address
no cdp enable
!
interface Dialer1
description -----INTERNODE ADSL------
mtu 1492
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp chap hostname cabotage@internode.on.net
ppp chap password 7 05531F5A331F1C1E08
ppp ipcp dns request accept
no cdp enable
crypto map CRYMAP
!
router rip
version 2
redistribute static
network 10.0.1..0
!
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
!
!
ip dns server
ip nat inside source static tcp 10.0.1..222 3389 interface Dialer1 19770
ip nat inside source static tcp 10.0.1..69 22 interface Dialer1 19771
ip nat inside source static tcp 10.0.1..69 5000 interface Dialer1 5000
ip nat inside source static tcp 10.0.1..114 3389 interface Dialer1 31313
ip nat inside source static tcp 10.0.1..110 3389 interface Dialer1 19450
ip nat inside source list NAT-ACL interface Dialer1 overload
ip route 0.0.0.0 0.0.0.0 Dialer1
ip route 172.0.60.0 255.255.255.0 14.14.14.14
!
ip access-list standard OutMan
permit any
ip access-list standard acINAT
ip access-list standard aclQueitMode
permit 0.0.0.0 255.255.225.255
ip access-list standard aclQuietMode
permit 10.0.1.0 0.0.0.255
!
ip access-list extended NAT-ACL
deny ip 10.0.1.0 0.0.0.255 172.0.60.0 0.0.0.255
permit ip 10.0.1.0 0.0.0.255 any
ip access-list extended aclNat
permit ip 10.0.1.0 0.0.0.255 any
!
logging trap debugging
access-list 101 permit ip 10.0.1.0 0.0.0.255 172.0.60.0 0.0.0.255
access-list 103 permit tcp host 0.0.0.0 host 180.180.180.180
dialer-list 1 protocol ip permit
no cdp run
!
!
!
!
route-map rmNatIn2Out permit 10
match ip address NAT-ACL
!
!
control-plane
!
08-03-2012 08:03 PM
ASA configuration on the other side of tunnel.
ASA Version 8.2(5)
!
hostname ASA
domain-name ninterface.com
names
name 14.14.14.14 outside description outside interface
name 10.0.1.0 central description central office
!
interface Ethernet0/0
switchport access vlan 2
!
!
interface Vlan1
nameif inside
security-level 100
ip address 10.0.1.1 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
pppoe client vpdn group iiNet
ip address pppoe setroute
!
ftp mode passive
clock timezone EST 10
dns domain-lookup inside
dns domain-lookup outside
dns server-group DefaultDNS
domain-name ninterface.com
dns server-group MainDNSList
name-server 203.0.178.191
name-server 8.8.8.8
domain-name ninterface.com
dns-group MainDNSList
object-group network obj_any
object-group icmp-type ICMP-INBOUND
description Permit necessary inbound ICMP traffic
icmp-object echo-reply
icmp-object unreachable
icmp-object time-exceeded
object-group service DS_TOR tcp-udp
description group of ports to the hub for TOR
port-object eq 29898
port-object eq 29899
port-object eq 29900
port-object eq 29901
port-object eq 29902
port-object eq 29903
port-object eq 29904
port-object eq 29905
port-object eq 29906
port-object eq 29907
port-object eq 29908
port-object eq 29909
port-object eq 29910
object-group service DM_INLINE_TCP_1 tcp
port-object eq 2222
port-object eq 29922
port-object eq 5000
port-object eq 5001
port-object eq 7000
port-object eq 873
port-object eq www
port-object eq 7001
group-object DS_TOR
object-group service DM_INLINE_SERVICE_1
service-object tcp eq 3074
service-object tcp eq 88
service-object tcp eq domain
service-object udp eq 3074
service-object udp eq domain
access-list INBOUND extended permit icmp any any object-group ICMP-INBOUND
access-list INBOUND remark chiang access list
access-list INBOUND extended permit tcp any host outside object-group DM_INLINE_TCP_1
access-list INBOUND remark xbox access
access-list INBOUND extended permit object-group DM_INLINE_SERVICE_1 any host outside
access-list INBOUND extended permit ip central 255.255.255.0 172.0.60.0 255.255.255.0
access-list outside_1_cryptomap extended permit ip 172.0.60.0 255.255.255.0 central 255.255.255.0
access-list inside_nat0_outbound extended permit ip 172.0.60.0 255.255.255.0 central 255.255.255.0
access-list SecLanTraffic extended permit ip 172.0.60.0 255.255.255.0 central 255.255.255.0
pager lines 24
logging enable
logging asdm informational
mtu inside 1492
mtu outside 1492
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
nat-control
global (outside) 1 interface
nat (inside) 0 access-list inside_nat0_outbound
nat (inside) 1 172.0.60.0 255.255.255.0
access-group INBOUND in interface outside
route outside 0.0.0.0 0.0.0.0 203.215.9.250 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
aaa authentication enable console LOCAL
aaa authentication http console LOCAL
aaa authentication serial console LOCAL
aaa authentication ssh console LOCAL
aaa authorization exec authentication-server
http server enable
http 172.0.60.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
no sysopt connection permit-vpn
auth-prompt prompt Yo you flute me?
auth-prompt accept in
auth-prompt reject out
crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec security-association lifetime seconds 28800
crypto ipsec security-association lifetime kilobytes 4608000
crypto map outside_map 1 match address outside_1_cryptomap
crypto map outside_map 1 set peer 150.101.181.62
crypto map outside_map 1 set transform-set ESP-3DES-SHA
crypto map outside_map 1 set nat-t-disable
crypto map outside_map 1 set reverse-route
crypto map outside_map interface outside
crypto isakmp enable outside
crypto isakmp policy 10
authentication pre-share
encryption 3des
hash sha
group 1
lifetime 28800
telnet timeout 2
ssh 172.0.60.0 255.255.255.0 inside
ssh timeout 5
console timeout 0
management-access inside
vpdn group iiNet request dialout pppoe
vpdn group iiNet localname UNAME
vpdn group iiNet ppp authentication pap
vpdn username UNAME password ***** store-local
dhcpd auto_config outside
!
dhcpd address 172.0.60.1-172.0.60.36 inside
dhcpd dns 203.0.178.191 8.8.8.8 interface inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics access-list
threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200
webvpn
username admin password Q8Mi1MQB4nIkEh1X encrypted privilege 15
tunnel-group REMOTEROUTERIP type ipsec-l2l
tunnel-group REMOTEROUTERIP ipsec-attributes
pre-shared-key *****
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
!
service-policy global_policy global
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