jiaozhentian opened a new issue, #2061:
URL: https://github.com/apache/apisix-ingress-controller/issues/2061
### Current Behavior
Now we have APISIX3.5 installed by helm, istio1.19 in kubernetes 1.27. All
things were implemented properly, the APISIX install script is
```
helm upgrade -i apisix-istio apisix/apisix \
--version=1.6.2 \
--set gateway.type=NodePort \
--set ingress-controller.enabled=true \
--set ingress-controller.config.apisix.serviceNamespace=apisix-istio
\
--set
ingress-controller.config.apisix.serviceName=apisix-istio-admin \
--set gateway.stream.enabled=true \
--set gateway.stream.tcp[0].addr=9100 \
--set gateway.stream.tcp[1].addr=9101 \
--set gateway.stream.tcp[2].addr=9102 \
--set gateway.stream.udp[0]=9200 \
--set gateway.stream.udp[1]=9201 \
--namespace apisix-istio
```
and the route of the mysql is:
```
apiVersion: apisix.apache.org/v2
kind: ApisixRoute
metadata:
name: mysql
namespace: tools
spec:
stream:
- name: mysql-rule
protocol: TCP
match:
ingressPort: 9100
backend:
serviceName: mysql
servicePort: 3306
```
but the gateway seems not work well.
### Expected Behavior
I use this command trying get the connection with mysql sevice:
```
mysql --protocol=TCP --host=192.168.108.53 --port=31418 -u root -p
```
I use 192.168.xxx.xxx IP in my local computer, tried the Endpoint IP or
service IP of apisix-istio-gateway10.16.xxx.xxx in the mysql pod, but
everything I tried just got nothing.
Yeah, nothing, I got nothing come back after entering password of mysql.
### Error Logs
Sorry I can not get any of ERROR logs in apisix cause there is no error.
What is more when I use mysql command or telnet, the log still have no change,
got empty log response for TCP requests.
### Steps to Reproduce
1. Then I tried telnet the port, while I got something:
```
/# telnet 10.16.45.190 9100
Trying 10.16.45.190...
Connected to 10.16.45.190.
Escape character is '^]'.
<I enter something here>
Wmysql_native_password!#08S01Got packets out of orderConnection closed by
foreign host.
```
which means the TCP connection test is pass, that is wired.
2. Then I tried to catch some packts in mysql pod:
```
/# tcpdump -i eth0 port 3306
```
when I try to connect the sql with command mysql, nothing got, when I use
telnet, we got some packetes.
So I guess the apisix-istio-gateway had block the packets of mysql.
### Environment
- APISIX Ingress controller version: 0.12.1 (installed with helm chart
apisix1.6.2)
- Kubernetes cluster version: 1.27.4
- OS version if running APISIX Ingress controller in a bare-metal
environment: Ubuntu22.04
- Istio version: 1.19
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