Why Can't I Ping My EIP After It Is Bound to an Instance?
Fault Locating
- Check security group rules.
- Check network ACL rules.
- Ping the ECS to the instance in the same region.
Solution
- Check security group rules.
- Log in to the management console.
- Click in the upper left corner and select a region and project.
- Click in the upper left corner of the page and choose .
- On the Instances page, click the name of the target instance to go to the Basic Information page.
- In the Connection Information area, click the security group.
- Check whether the ECS NIC security group allows the inbound ICMP traffic.
Table 1 Security group rules Direction
Type
Protocol/Port Range
Source IP Address
Inbound
IPv4
Any/Any
0.0.0.0/0
0.0.0.0/0 indicates all IP addresses.
Inbound
IPv4
ICMP/Any
0.0.0.0/0
0.0.0.0/0 indicates all IP addresses.
- Check network ACL rules.
- Check whether the network ACL is enabled or disabled.
- Check whether the NIC to which the EIP bound belongs to the subnet associated with the network ACL.
- If the network ACL is enabled, add an ICMP rule to allow traffic.
The default network ACL rule denies all incoming and outgoing packets. After the network ACL is disabled, the default rule still takes effect.
- Ping the ECS to the instance in the same region.
If the affected EIP can be pinged from another ECS in the same region, the virtual network is functional. In such a case, contact technical support.
Database Connections FAQs
- Can I Connect to GaussDB over SSL?
- What Should I Do If I Can't Connect to My GaussDB Instance?
- Can an External Server Access GaussDB Instances?
- How Can I Create and Connect to an ECS?
- What Should I Do If an ECS Cannot Connect to a GaussDB Instance Through a Private Network?
- What Should I Do If a Database Client Problem Causes a Connection Failure?
- What Should I Do If a GaussDB Database Problem Causes a Connection Failure?
- How Do My Applications Access a GaussDB Instance in a VPC?
- Do Applications Need to Support Reconnecting to the GaussDB Instance Automatically?
- Why Can't I Ping My EIP After It Is Bound to an Instance?
- Can I Access a GaussDB Instance Over an Intranet Connection Across Regions?
- Will My Access Be Restricted by Bandwidth When I Connect to My GaussDB Instance from an ECS over a Private Network?
- Why Did the New Password Not Take Effect After I Reset the Administrator Password?
- What Should I Do If the ECS and GaussDB Instance Are Deployed in Different VPCs and They Cannot Communicate with Each Other?
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