MIP/VIPped 服务器的出站流量被阻止 (Juniper SSG5)

Question

由于我们遇到了一些偶尔出现数据包丢失的问题，我一直在为当前的 Juniper SSG5 准备一个替换路由器（也是 SSG5）。我已将新 SSG5 的设置与旧 SSG5 完全相同。

我们有一个 /29 IP 范围，其中一个 IP 设置作为到服务器的 MIP 映射，另外两个 IP 用于 VIP 映射。每个 VIP/MIP 都附带相关政策。

长话短说 - 我们尝试连接新的 SSG5，但有些东西没有正常工作。没问题，我只需重新连接旧的即可。但是，即使我重新连接了旧的，有些东西仍然坏了。我担心我在尝试重新配置新的 SSG5 单元时浏览旧设置时可能无意中更改了一些设置。

所有入站流量似乎都按预期工作。但是，192.168.2.202 服务器无法启动任何出站连接。它在本地网络上运行良好，但对外部 IP 的任何 ping 或 DNS 查找均失败。MIP 和 VIP 映射到它运行良好 - 我可以通过 HTTP 和 RDP 访问它，没有任何问题。

关于调试什么，或者我在哪里搞乱了配置，有什么提示吗？

我在这里附加了完整的配置（带有匿名 IP）：

set clock timezone 1
set vrouter trust-vr sharable
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
unset auto-route-export
exit
set service "MyVOIP_UDP4569" protocol udp src-port 0-65535 dst-port 4569-4569 
set service "MyVOIP_TCP22" protocol tcp src-port 0-65535 dst-port 22-22 
set service "MyRDP" protocol tcp src-port 0-65535 dst-port 3389-3389 
set service "MyRsync" protocol tcp src-port 0-65535 dst-port 873-873 
set service "NZ_FTP" protocol tcp src-port 0-65535 dst-port 40000-41000 
set service "NZ_FTP" + tcp src-port 0-65535 dst-port 21-21 
set service "PPTP-VPN" protocol 47 src-port 2048-2048 dst-port 2048-2048 
set service "PPTP-VPN" + tcp src-port 1024-65535 dst-port 1723-1723 
set service "NZ_FMS_1935" protocol tcp src-port 0-65535 dst-port 1935-1935 
set service "NZ_FMS_1935" + udp src-port 0-65535 dst-port 1935-1935 
set service "NZ_FMS_8080" protocol tcp src-port 0-65535 dst-port 8080-8080 
set service "CrashPlan Server" protocol tcp src-port 0-65535 dst-port 4280-4280 
set service "CrashPlan Console" protocol tcp src-port 0-65535 dst-port 4282-4282 
unset alg sip enable
set auth-server "Local" id 0
set auth-server "Local" server-name "Local"
set auth default auth server "Local"
set auth radius accounting port 1646
set admin auth timeout 10
set admin auth server "Local"
set admin format dos
set vip multi-port
set zone "Trust" vrouter "trust-vr"
set zone "Untrust" vrouter "trust-vr"
set zone "DMZ" vrouter "trust-vr"
set zone "VLAN" vrouter "trust-vr"
set zone "Untrust-Tun" vrouter "trust-vr"
set zone "Trust" tcp-rst 
set zone "Untrust" block 
unset zone "Untrust" tcp-rst 
set zone "DMZ" tcp-rst 
set zone "VLAN" block 
unset zone "VLAN" tcp-rst 
set zone "Untrust" screen tear-drop
set zone "Untrust" screen syn-flood
set zone "Untrust" screen ping-death
set zone "Untrust" screen ip-filter-src
set zone "Untrust" screen land
set zone "V1-Untrust" screen tear-drop
set zone "V1-Untrust" screen syn-flood
set zone "V1-Untrust" screen ping-death
set zone "V1-Untrust" screen ip-filter-src
set zone "V1-Untrust" screen land
set interface ethernet0/0 phy full 100mb
set interface ethernet0/3 phy full 100mb
set interface ethernet0/4 phy full 100mb
set interface ethernet0/5 phy full 100mb
set interface ethernet0/6 phy full 100mb
set interface "ethernet0/0" zone "Untrust"
set interface "ethernet0/1" zone "Null"
set interface "bgroup0" zone "Trust"
set interface "bgroup1" zone "Trust"
set interface "bgroup2" zone "Trust"
set interface bgroup2 port ethernet0/2
set interface bgroup0 port ethernet0/3
set interface bgroup0 port ethernet0/4
set interface bgroup1 port ethernet0/5
set interface bgroup1 port ethernet0/6
unset interface vlan1 ip
set interface ethernet0/0 ip 212.242.193.18/29
set interface ethernet0/0 route
set interface bgroup0 ip 192.168.1.1/24
set interface bgroup0 nat
set interface bgroup1 ip 192.168.2.1/24
set interface bgroup1 nat
set interface bgroup2 ip 192.168.3.1/24
set interface bgroup2 nat
set interface ethernet0/0 gateway 212.242.193.17
unset interface vlan1 bypass-others-ipsec
unset interface vlan1 bypass-non-ip
set interface ethernet0/0 ip manageable
set interface bgroup0 ip manageable
set interface bgroup1 ip manageable
set interface bgroup2 ip manageable
set interface bgroup0 manage mtrace
unset interface bgroup1 manage ssh
unset interface bgroup1 manage telnet
unset interface bgroup1 manage snmp
unset interface bgroup1 manage ssl
unset interface bgroup1 manage web
unset interface bgroup2 manage ssh
unset interface bgroup2 manage telnet
unset interface bgroup2 manage snmp
unset interface bgroup2 manage ssl
unset interface bgroup2 manage web
set interface ethernet0/0 vip 212.242.193.19 2048 "PPTP-VPN" 192.168.1.131
set interface ethernet0/0 vip 212.242.193.19 + 4280 "CrashPlan Server" 192.168.1.131
set interface ethernet0/0 vip 212.242.193.19 + 4282 "CrashPlan Console" 192.168.1.131
set interface ethernet0/0 vip 212.242.193.22 22 "MyVOIP_TCP22" 192.168.2.127
set interface ethernet0/0 vip 212.242.193.22 + 4569 "MyVOIP_UDP4569" 192.168.2.127
set interface ethernet0/0 vip 212.242.193.22 + 3389 "MyRDP" 192.168.2.202
set interface ethernet0/0 vip 212.242.193.22 + 873 "MyRsync" 192.168.2.201
set interface ethernet0/0 vip 212.242.193.22 + 80 "HTTP" 192.168.2.202
set interface ethernet0/0 vip 212.242.193.22 + 2048 "PPTP-VPN" 192.168.2.201
set interface ethernet0/0 vip 212.242.193.22 + 8080 "NZ_FMS_8080" 192.168.2.216
set interface ethernet0/0 vip 212.242.193.22 + 1935 "NZ_FMS_1935" 192.168.2.216
set interface bgroup0 dhcp server service
set interface bgroup1 dhcp server service
set interface bgroup2 dhcp server service
set interface bgroup0 dhcp server auto
set interface bgroup1 dhcp server auto
set interface bgroup2 dhcp server auto
set interface bgroup0 dhcp server option domainname iplan 
set interface bgroup0 dhcp server option dns1 192.168.1.131 
set interface bgroup1 dhcp server option domainname nzlan 
set interface bgroup1 dhcp server option dns1 192.168.2.202 
set interface bgroup2 dhcp server option dns1 8.8.8.8 
set interface bgroup2 dhcp server option wins1 8.8.4.4 
set interface bgroup0 dhcp server ip 192.168.1.2 to 192.168.1.116 
set interface bgroup1 dhcp server ip 192.168.2.2 to 192.168.2.116 
set interface bgroup2 dhcp server ip 192.168.3.2 to 192.168.3.126 
unset interface bgroup0 dhcp server config next-server-ip
unset interface bgroup1 dhcp server config next-server-ip
unset interface bgroup2 dhcp server config next-server-ip
set interface "ethernet0/0" mip 212.242.193.21 host 192.168.2.202 netmask 255.255.255.255 vr "trust-vr"
set interface "serial0/0" modem settings "USR" init "AT&F"
set interface "serial0/0" modem settings "USR" active
set interface "serial0/0" modem speed 115200
set interface "serial0/0" modem retry 3
set interface "serial0/0" modem interval 10
set interface "serial0/0" modem idle-time 10
set pak-poll p1queue pak-threshold 96
set pak-poll p2queue pak-threshold 32
set flow tcp-mss
unset flow tcp-syn-check
set dns host dns1 0.0.0.0
set dns host dns2 0.0.0.0
set dns host dns3 0.0.0.0
set address "Trust" "192.168.1.0/24" 192.168.1.0 255.255.255.0
set address "Trust" "192.168.2.0/24" 192.168.2.0 255.255.255.0
set address "Trust" "192.168.3.0/24" 192.168.3.0 255.255.255.0
set ike respond-bad-spi 1
unset ike ikeid-enumeration
unset ike dos-protection
unset ipsec access-session enable
set ipsec access-session maximum 5000
set ipsec access-session upper-threshold 0
set ipsec access-session lower-threshold 0
set ipsec access-session dead-p2-sa-timeout 0
unset ipsec access-session log-error
unset ipsec access-session info-exch-connected
unset ipsec access-session use-error-log
set l2tp default ppp-auth chap
set url protocol websense
exit
set policy id 1 from "Trust" to "Untrust"  "Any" "Any" "ANY" permit traffic
set policy id 1
exit
set policy id 2 from "Untrust" to "Trust"  "Any" "VIP(212.242.193.19)" "PPTP-VPN" permit traffic
set policy id 2
exit
set policy id 3 from "Untrust" to "Trust"  "Any" "VIP(212.242.193.22)" "HTTP" permit traffic priority 0
set policy id 3
set service "MyRDP"
set service "MyRsync"
set service "MyVOIP_TCP22"
set service "MyVOIP_UDP4569"
exit
set policy id 6 from "Trust" to "Trust"  "192.168.1.0/24" "192.168.2.0/24" "ANY" deny 
set policy id 6
exit
set policy id 7 from "Trust" to "Trust"  "192.168.2.0/24" "192.168.1.0/24" "ANY" deny 
set policy id 7
exit
set policy id 8 from "Trust" to "Trust"  "192.168.3.0/24" "192.168.1.0/24" "ANY" deny 
set policy id 8
exit
set policy id 9 from "Trust" to "Trust"  "192.168.3.0/24" "192.168.2.0/24" "ANY" deny 
set policy id 9
exit
set policy id 10 from "Untrust" to "Trust"  "Any" "MIP(212.242.193.21)" "NZ_FTP" permit 
set policy id 10
exit
set policy id 11 from "Untrust" to "Trust"  "Any" "VIP(212.242.193.22)" "PPTP-VPN" permit 
set policy id 11
exit
set policy id 12 from "Untrust" to "Trust"  "Any" "VIP(212.242.193.22)" "NZ_FMS_1935" permit 
set policy id 12
set service "NZ_FMS_8080"
exit
set policy id 13 from "Untrust" to "Trust"  "Any" "VIP(212.242.193.19)" "CrashPlan Console" permit 
set policy id 13
set service "CrashPlan Server"
exit
set nsmgmt bulkcli reboot-timeout 60
set ssh version v2
set config lock timeout 5
set snmp port listen 161
set snmp port trap 162
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
unset add-default-route
exit
set vrouter "untrust-vr"
exit
set vrouter "trust-vr"
exit

更新：
问题似乎在我没有更改任何配置设置的情况下出现，但它也消失了。昨晚 9 点我离开办公室，没有找到 .202 服务器无法访问外部的解决方案。今天早上我出现时，它又正常工作了 - 自从我离开后什么都没动过。

这可能是连接超时、新的 DHCP 租约或类似问题吗？今晚我们将再次尝试重新连接新的 SSG5 - 这次我认为它可能确实有效，但我们遇到了相同的基于时间的问题。