@H_301_1@proxmox上有一个集群.在群集中有vm配置的路由器(pfsense).在我们的网络有
Windows和
Linux机器.
有问题：
Windows机器可以访问互联网,但Linux机器没有.
所有Linux机器的行为方式都相同,它发送请求并等待响应,但响应没有回来.
我检查了wget,ssh和nslookup到外部服务器(8.8.8.8示例)并ping.除ping之外,一切都不起作用.
ICMP数据包正确地去了,因此我冒昧地建议TCP的问题.
但是对于所有的Windows机器,一切正常.
我没有为linux或windows创建特殊的过滤规则.
我打破了头,但一直未能解决这个问题.
基线：
Our External IP: XX.XXX.XX.XX External Server IP: Y.YYY.Y.YYY (which was used to test)
所以,我花了两个测试：
测试1.来自linux机器的wget：
从路由器捕获数据包：
No. Time Source Destination Protocol Length Info
1 0.000000 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 GET / HTTP/1.1
2 21.798340 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 74 49656 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=173036151 TSecr=0 WS=128
3 21.850793 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 74 http > 49656 [SYN,ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 SACK_PERM=1 TSval=1304117522 TSecr=173036151 WS=1024
4 21.850849 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 66 49656 > http [ACK] Seq=1 Ack=1 Win=14720 Len=0 TSval=173036203 TSecr=1304117522
5 21.850868 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 GET / HTTP/1.1
6 22.101939 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 [TCP Retransmission] GET / HTTP/1.1
7 22.605999 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 [TCP Retransmission] GET / HTTP/1.1
8 23.613997 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 [TCP Retransmission] GET / HTTP/1.1
9 25.629983 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 [TCP Retransmission] GET / HTTP/1.1
10 28.931894 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 78 http > 11956 [FIN,ACK] Seq=1 Ack=1 Win=6 Len=0 TSval=1304124610 TSecr=172983238 SLE=109 SRE=110
11 28.932001 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 66 [TCP PrevIoUs segment not captured] 11956 > http [ACK] Seq=110 Ack=2 Win=115 Len=0 TSval=173043285 TSecr=1304124610
12 29.661996 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 [TCP Retransmission] GET / HTTP/1.1
13 31.360021 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 174 [TCP Retransmission] GET / HTTP/1.1
从我的外部服务器捕获数据包：
No. Time Source Destination Protocol Length Info
1 0.000000 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 76 49656 > http [SYN] Seq=0 Win=14600 Len=0 MSS=1460 SACK_PERM=1 TSval=173036151 TSecr=0 WS=128
2 0.000059 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 76 http > 49656 [SYN,ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 SACK_PERM=1 TSval=1304117522 TSecr=173036151 WS=1024
3 0.059242 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 68 49656 > http [ACK] Seq=1 Ack=1 Win=14720 Len=0 TSval=173036203 TSecr=1304117522
4 0.059247 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 GET / HTTP/1.1
5 0.303398 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 [TCP Retransmission] GET / HTTP/1.1
6 0.809767 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 [TCP Retransmission] GET / HTTP/1.1
7 1.815634 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 [TCP Retransmission] GET / HTTP/1.1
8 3.836576 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 [TCP Retransmission] GET / HTTP/1.1
9 7.088059 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 80 http > 11956 [FIN,ACK] Seq=1 Ack=1 Win=6 Len=0 TSval=1304124610 TSecr=172983238 SLE=109 SRE=110
10 7.134903 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 68 11956 > http [ACK] Seq=110 Ack=2 Win=115 Len=0 TSval=173043285 TSecr=1304124610
11 7.864582 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 [TCP Retransmission] GET / HTTP/1.1
12 9.564772 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 176 [TCP Retransmission] GET / HTTP/1.1
从Windows机器测试2.wget：
从路由器捕获数据包：
No. Time Source Destination Protocol Length Info
1 0.000000 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 66 ampr-info > http [SYN] Seq=0 Win=8192 Len=0 MSS=1460 WS=256 SACK_PERM=1
2 0.053994 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 66 http > ampr-info [SYN,ACK] Seq=0 Ack=1 Win=5840 Len=0 MSS=1460 SACK_PERM=1 WS=1024
3 0.054129 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 54 ampr-info > http [ACK] Seq=1 Ack=1 Win=65536 Len=0
4 0.054450 XX.XXX.XX.XX Y.YYY.Y.YYY HTTP 150 GET / HTTP/1.0
5 0.110034 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 60 http > ampr-info [ACK] Seq=1 Ack=97 Win=6144 Len=0
6 0.113011 Y.YYY.Y.YYY XX.XXX.XX.XX HTTP 931 HTTP/1.1 200 OK (text/html)
7 0.115990 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 54 ampr-info > http [RST,ACK] Seq=97 Ack=878 Win=0 Len=0
从我的外部服务器捕获数据包：
No. Time Source Destination Protocol Length Info
1 0.000000 XX.XXX.XX.XX Y.YYY.Y.YYY TCP 66 ampr-info > http [SYN] Seq=0 Win=8192 Len=0 MSS=1460 WS=256 SACK_PERM=1
2 0.053994 Y.YYY.Y.YYY XX.XXX.XX.XX TCP 66 http > ampr-info [SYN,ACK] Seq=97 Ack=878 Win=0 Len=0
请帮帮我,有什么想法吗？
