01-09-2014 06:53 PM - edited 03-11-2019 08:27 PM
I have a /29 network provided by my ISP and I also have an internal /24 network. Outbound internet works OK. I would like to be able to receive inbound traffic (HTTPS) on X.X.X.211 on my main Outside interface (which has an IP address of X.X.X.210). I'm looking for secondary IP type functionality. I understand the ASA is not a router but certainly there must be a way to allow for inbound traffic on more than one external IP without having to use multiple 'outside' interfaces.
external network: X.X.X.208 /29
internal network: 192.168.2.0 /24
ISP endpoint: X.X.X.209
my ASA endpoint: X.X.X.210
inbound https: X.X.X.211 (not working)
: Saved
:
ASA Version 9.1(1)
!
hostname SSIASA1
domain-name X
enable password 8b/6zhsslX6MGlCt encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
!
interface GigabitEthernet0/0
nameif Inside
security-level 100
ip address 192.168.2.200 255.255.255.0
!
interface GigabitEthernet0/1
nameif Outside
security-level 0
ip address X.X.X.210 255.255.255.248
!
interface GigabitEthernet0/2
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/3
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/4
shutdown
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/5
shutdown
no nameif
no security-level
no ip address
!
interface Management0/0
management-only
nameif management
security-level 100
ip address 192.168.10.1 255.255.255.0
!
boot system disk0:/asa911-smp-k8.bin
ftp mode passive
clock timezone EST -5
clock summer-time EDT recurring
dns domain-lookup Inside
dns server-group DefaultDNS
name-server 192.168.2.2
name-server 192.168.2.52
domain-name
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network TMG
host 192.168.2.1
object network Public_IP_1
host X.X.X.211
description Cogent IP Block
object network Public_IP_2
host X.X.X.212
description Cogent IP Block
object network Public_IP_3
host X.X.X.213
description Cogent IP Block
object network Public_IP_4
host X.X.X.214
description Cogent IP Block
object network Internal_Network
subnet 192.168.2.0 255.255.255.0
object network SRVNJ04
host 192.168.2.4
object network WSNJ22
host 192.168.2.98
object network SSINGINX1
host 192.168.2.7
description NGINX1
object network Cogent_Outside
host X.X.X.209
description Cogent outside interface
object network Cogent_Inside
host X.X.X.210
object service https
service tcp source eq https destination eq https
description https
object-group icmp-type DM_INLINE_ICMP_1
icmp-object echo-reply
icmp-object time-exceeded
icmp-object unreachable
icmp-object source-quench
object-group service DM_INLINE_SERVICE_1
service-object ip
service-object udp
service-object tcp
service-object tcp destination eq www
service-object tcp destination eq https
object-group service DM_INLINE_SERVICE_2
service-object ip
service-object udp destination eq tftp
object-group network DM_INLINE_NETWORK_1
network-object 192.168.2.0 255.255.255.0
network-object X.X.X.208 255.255.255.248
object-group icmp-type DM_INLINE_ICMP_2
icmp-object echo-reply
icmp-object source-quench
icmp-object time-exceeded
icmp-object unreachable
object-group service DM_INLINE_SERVICE_3
service-object ip
service-object udp
service-object tcp
service-object tcp destination eq www
object-group service DM_INLINE_SERVICE_4
service-object ip
service-object udp
service-object tcp
service-object tcp destination eq www
access-list Inside_access_in remark allow specific traffic to Inside network
access-list Inside_access_in extended permit object-group DM_INLINE_SERVICE_1 any any
access-list Inside_access_in remark allow ICMP to Inside network
access-list Inside_access_in extended permit icmp any any object-group DM_INLINE_ICMP_1
access-list Inside_access_in remark allow TFTP to SRVNJ04 (for CISCO ASA config backups) from Internal
access-list Inside_access_in extended permit object-group DM_INLINE_SERVICE_2 object Internal_Network object SRVNJ04
access-list Inside_access_in remark allow https traffic to NGINX from inside/outside
access-list Inside_access_in extended permit tcp object-group DM_INLINE_NETWORK_1 object SSINGINX1 eq https
access-list Outside_access_in remark allow specific traffic from Cogent to Outside network
access-list Outside_access_in extended permit object-group DM_INLINE_SERVICE_3 object Cogent_Outside X.X.X.208 255.255.255.248
access-list Outside_access_in remark allow specific traffic from Inside to Outside
access-list Outside_access_in extended permit object-group DM_INLINE_SERVICE_4 192.168.2.0 255.255.255.0 X.X.X.208 255.255.255.248
access-list Outside_access_in remark allow ICMP from inside to external IPs
access-list Outside_access_in extended permit icmp 192.168.2.0 255.255.255.0 X.X.X.208 255.255.255.248 object-group DM_INLINE_ICMP_2
pager lines 24
logging enable
logging buffered debugging
logging asdm informational
mtu Inside 1500
mtu Outside 1500
mtu management 1500
no failover
icmp unreachable rate-limit 10 burst-size 5
icmp permit any Inside
icmp deny any echo-reply Outside
asdm image disk0:/asdm-711.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
nat (Inside,Outside) source dynamic any Public_IP_2 description internet access
nat (Outside,Inside) source static any interface destination static Public_IP_1 SSINGINX1 service https https net-to-net description https inbound
access-group Inside_access_in in interface Inside
access-group Outside_access_in in interface Outside
route Outside 0.0.0.0 0.0.0.0 X.X.X.209 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 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
http server enable 444
http 192.168.10.0 255.255.255.0 management
http 192.168.2.98 255.255.255.255 Inside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
telnet timeout 5
ssh 192.168.2.98 255.255.255.255 Inside
ssh timeout 60
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
username X password 9tQ.Tz4SMB4I.AdH encrypted
!
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
inspect icmp error
class class-default
set connection decrement-ttl
inspect icmp
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:7908a72c2aa2c00f0fb4686913351dca
: end
01-10-2014 08:09 AM
Hey Arthur,
How are you??
Yeah there is a way using Proxy-ARP with NAT.
Your configuration is almost good.
Proposed changes:
object service https
no service tcp source eq https destination eq https
service tcp source eq https
no nat (Outside,Inside) source static any interface destination static Public_IP_1 SSINGINX1 service https https net-to-net description https inbound
nat (inside,outside) 1 source static SSINGINX1 Public_IP_1 service https https
That's it bud (you could use the outside, inside as well but I prefer the in,out for simplecity)
Looking for some Networking Assistance?
Contact me directly at jcarvaja@laguiadelnetworking.com
I will fix your problem ASAP.
Cheers,
Julio Carvajal Segura
http://laguiadelnetworking.com
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