02-29-2024 10:14 AM - edited 02-29-2024 10:19 AM
I have CISCO ASA Version 9.19(1) deployed in AWS Cloud.
I was able to establish a VPN connection with the peer. I am trying to ping a server on the side. I see both the VPN and icmp connection when I run show conn and a capture show the icmp request on the inside interface but no reply.
I believe the return traffic is not routed from outside to inside.
My current config:
: Saved
:
: Serial Number: 9APK7MNR5HL
: Hardware: ASAv, 7680 MB RAM, CPU Xeon 4100/6100/8100 series 3605 MHz, 1 CPU (4 cores)
:
ASA Version 9.19(1)
!
hostname ciscoasaaaa
!
interface Management0/0
management-only
nameif management
security-level 100
ip address dhcp setroute
!
interface TenGigabitEthernet0/0
nameif outside
security-level 0
ip address dhcp setroute
!
interface TenGigabitEthernet0/1
nameif inside
security-level 100
ip address dhcp setroute
!
ftp mode passive
dns domain-lookup outside
dns server-group Default
name-server 1.0.0.1
name-server 1.1.1.1
dns server-group DefaultDNS
domain-name XXXXX
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
no object-group-search access-control
object network CH_1
host XXXXXX
object network CH_2
host XXXXXX
object network TEST_IP
host XXXXX
object network TEST_IP_PRIVATE
host 172.31.45.0
object-group network CH_IPS
network-object object CH_1
network-object object CH_2
object-group network TEST_GROUP_IPS
network-object object TEST_IP
access-group outside_access_in in interface outside
access-group allow-all global
access-list outside_access_in extended permit ip any any
access-list allow-all extended permit ip any4 any4
access-list allow-all extended permit ip any6 any6
access-list CH-NETWORK extended permit ip object-group CH_IPS object-group TEST_GROUP_IPS
access-list CH-NETWORK extended permit ip object-group TEST_GROUP_IPS object-group CH_IPS
pager lines 23
mtu management 1500
mtu outside 1500
mtu inside 1500
no failover
no failover wait-disable
no monitor-interface service-module
icmp unreachable rate-limit 1 burst-size 1
icmp permit any outside
icmp permit any inside
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
arp rate-limit 16384
nat (inside,outside) source static TEST_IP_PRIVATE TEST_IP destination static CH_1 CH_1
route outside 0.0.0.0 0.0.0.0 172.31.100.1 1
route inside 172.31.0.0 255.255.0.0 172.31.32.1 1
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 sctp 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
timeout conn-holddown 0:00:15
timeout igp stale-route 0:01:10
user-identity default-domain LOCAL
aaa authentication ssh console LOCAL
aaa authentication login-history
no snmp-server location
no snmp-server contact
crypto ipsec ikev2 ipsec-proposal VPN-TRANSFORM
protocol esp encryption aes-256
protocol esp integrity sha-256
crypto ipsec security-association pmtu-aging infinite
crypto map CH-MAP 1 match address CH-NETWORK
crypto map CH-MAP 1 set pfs group16
crypto map CH-MAP 1 set peer XXXXXXX
crypto map CH-MAP 1 set ikev2 ipsec-proposal VPN-TRANSFORM
crypto map CH-MAP 1 set security-association lifetime seconds 3600
crypto map CH-MAP interface outside
crypto ca trustpoint _SmartCallHome_ServerCA
no validation-usage
crl configure
crypto ca trustpoint _SmartCallHome_ServerCA2
no validation-usage
crl configure
crypto ca trustpool policy
auto-import
crypto ca certificate chain _SmartCallHome_ServerCA
XXXXXXXX
crypto ca certificate chain _SmartCallHome_ServerCA2
XXXXXXX
crypto ikev2 policy 10
encryption aes-256
integrity sha256
group 19
prf sha256
lifetime seconds 86400
crypto ikev2 enable outside
telnet timeout 5
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
group-policy VPN_GP internal
group-policy VPN_GP attributes
vpn-tunnel-protocol ikev2
dynamic-access-policy-record DfltAccessPolicy
tunnel-group XXXXX type ipsec-l2l
tunnel-group XXXXX general-attributes
default-group-policy VPN_GP
tunnel-group XXXXX ipsec-attributes
ikev2 remote-authentication pre-shared-key XXXXX
ikev2 local-authentication pre-shared-key XXXXX
!
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
no tcp-inspection
policy-map global_policy
class inspection_default
inspect rtsp
inspect sunrpc
inspect netbios
inspect tftp
inspect ip-options
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect esmtp
inspect sqlnet
inspect sip
inspect skinny
inspect icmp
inspect icmp error
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
call-home
profile License
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination transport-method http
profile CiscoTAC-1
no active
destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService
destination address email callhome@cisco.com
destination transport-method http
subscribe-to-alert-group diagnostic
subscribe-to-alert-group environment
subscribe-to-alert-group inventory periodic monthly
subscribe-to-alert-group configuration periodic monthly
subscribe-to-alert-group telemetry periodic daily
: end
Solved! Go to Solution.
02-29-2024 10:34 AM
I didn't add the second NAT because I don't want to interact with that server yet.
I found the issue.
The gateway for my route inside was wrong.
02-29-2024 10:24 AM
1-first there are two server and the NO-NAT include IP of one server
2-
route outside 0.0.0.0 0.0.0.0 172.31.100.1 1
route inside 172.31.0.0 255.255.0.0 172.31.32.1 1
the IP can conflict, do packet tracer and see lookup when the packet is point out
MHM
02-29-2024 10:34 AM
I didn't add the second NAT because I don't want to interact with that server yet.
I found the issue.
The gateway for my route inside was wrong.
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