我有 ASA-5505，带有面向公共 IP 的接口，端口将 https/443 转发到 Barracuda SSL VPN 设备。（梭子鱼只有私有IP）。
在 L2 模式下运行，远程主机感觉就像插入了此设备旁边的交换机。
当 VPN 设备处于 TCP 模式时，远程主机可以连接但在 UDP 模式下失败。（设备无法回复的 TLS 握手失败）。
我的 ACL 和 NAT 规则有问题吗？谢谢。
55ASA# show run
: Hardware: ASA5505, 512 MB RAM, CPU Geode 500 MHz
:
ASA Version 9.2(4)
!
hostname 55ASA
domain-name vpn.com
enable password
xlate per-session deny tcp any4 any4
xlate per-session deny tcp any4 any6
xlate per-session deny tcp any6 any4
xlate per-session deny tcp any6 any6
xlate per-session deny udp any4 any4 eq domain
xlate per-session deny udp any4 any6 eq domain
xlate per-session deny udp any6 any4 eq domain
xlate per-session deny udp any6 any6 eq domain
passwd
names
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
interface Vlan1
nameif inside
security-level 100
ip address 172.16.0.1 255.255.0.0
!
interface Vlan2
nameif outside
security-level 0
ip address 1.2.3.4 255.0.0.0
!
interface Vlan3
no nameif
no security-level
no ip address
!
boot system disk0:/asa924-k8.bin
ftp mode passive
clock timezone PST -8
clock summer-time PDT recurring
dns domain-lookup inside
dns server-group DefaultDNS
name-server 84.200.69.80
name-server 8.8.8.8
domain-name vpn.com
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
object network hostNW
host 172.16.100.100
object network hostHTTP
host 172.16.1.180
object network obj-172
subnet 172.16.0.0 255.255.0.0
object service https-udp
service udp source eq 443 destination eq 443
object-group service DM_INLINE_SERVICE_1
service-object object https-udp
service-object tcp destination eq https
service-object udp destination eq 443
access-list inside_access_in extended permit ip object obj-172 any4
access-list outside_access_in extended deny ip 10.0.0.0 255.0.0.0 any
access-list outside_access_in extended deny ip 172.16.0.0 255.240.0.0 any
access-list outside_access_in extended deny ip 192.168.0.0 255.255.0.0 any
access-list host-acl extended permit object-group DM_INLINE_SERVICE_1 any object hostNW
access-list host-acl extended permit tcp any object hostHTTP eq www
pager lines 24
logging enable
logging buffer-size 987564
logging buffered informational
logging asdm informational
mtu inside 1500
mtu outside 1500
ip verify reverse-path interface inside
ip verify reverse-path interface outside
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-762-150.bin
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
!
object network hostNW
nat (inside,outside) static interface net-to-net service tcp https https
object network hostHTTP
nat (inside,outside) static interface service tcp www www
object network obj-172
nat (inside,outside) dynamic interface
!
nat (inside,outside) after-auto source dynamic any interface
access-group inside_access_in in interface inside
access-group host-acl in interface outside
route outside 0.0.0.0 0.0.0.0 4.3.2.1
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
user-identity default-domain LOCAL
aaa authentication ssh console LOCAL
aaa authentication http console LOCAL
aaa local authentication attempts max-fail 3
http server enable
http 172.16.0.0 255.255.0.0 inside
no snmp-server location
no snmp-server contact
crypto ipsec ikev1 transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-DES-SHA esp-des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto ipsec ikev1 transform-set ESP-3DES-SHA esp-3des esp-sha-hmac
crypto ipsec ikev1 transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
no crypto isakmp nat-traversal
telnet timeout 5
ssh stricthostkeycheck
ssh 172.16.0.0 255.255.0.0 inside
ssh timeout 5
ssh version 2
ssh key-exchange group dh-group1-sha1
console timeout 0
management-access inside
no vpn-addr-assign aaa
no vpn-addr-assign dhcp
no vpn-addr-assign local
no ipv6-vpn-addr-assign aaa
no ipv6-vpn-addr-assign local
dhcp-client client-id interface outside
dhcpd dns 84.200.69.80 8.8.8.8
dhcpd domain vpn.com
dhcpd update dns both override
dhcpd option 3 ip 172.16.0.1
!
dhcpd address 172.16.1.100-172.16.1.130 inside
dhcpd enable inside
!
threat-detection basic-threat
threat-detection statistics host
threat-detection statistics access-list
threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200
ntp server 216.228.192.69 source outside
group-policy DfltGrpPolicy attributes
vpn-tunnel-protocol l2tp-ipsec
username 55lt password FOFWAf8le0N1mWrv encrypted privilege 15
!
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
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:ff597b145b695afa61ce3c60ae8cc8b9
: end
55ASA#
