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Unable to ping to External Internet

Yoram10222621
Level 1
Level 1

Hello, I am a student currently taking a networking course in school. 

Yoram10222621_0-1674493699754.png

This is the topology I have, where R1, R2 and R3 are DHCP servers for VLANs 10, 20 and 30 respectively. I have configured HSRP between R1 and R2 where R1 is the main router for VLAN10. Laptop1 has a DHCP address from R1. When R1 is connected to the switch below it (DLS1), Laptop1 can ping to the External Internet Server (10.10.10.1) on the top right. However, when I remove the connection from R1 and DLS1 I get the timed out message. HSRP only works when I completely remove the connections of R1 from DLS1 and R3.

I suspect this might be due to static routes I have configured. Here are the commands I used:

Yoram10222621_1-1674493975918.png

This is the addressing table:

Yoram10222621_2-1674494009600.png

VLAN Table:

Yoram10222621_4-1674494135897.png

 

Laptop 1 Config:

Yoram10222621_3-1674494029729.png

 

1 Accepted Solution

Accepted Solutions

Hello,

this is definitely due to the static routes you have configured. In the attached, revised file, I am using OSPF as a routing protocol, and the failover works perfectly. Are you required to use static routes ? If so, that is really tedious, since you have to use tracking and possibly IP SLAs to remove the static routes whenever an HSRP event occurs.

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5 Replies 5

Yoram10222621
Level 1
Level 1

Just to further showcase the problem I am facing:

Yoram10222621_0-1674494606115.png

Ping does not reach 10.10.10.1 when R1 is disconnected from DLS1

Yoram10222621_1-1674494672585.png

But works when R1 is completely removed

Yoram10222621_2-1674494714069.png

 

 

 

Hello,

post your zipped Packet Tracer project (.pkt) file...

As requested. Thank you.

Hello,

this is definitely due to the static routes you have configured. In the attached, revised file, I am using OSPF as a routing protocol, and the failover works perfectly. Are you required to use static routes ? If so, that is really tedious, since you have to use tracking and possibly IP SLAs to remove the static routes whenever an HSRP event occurs.

Ah yes, it is a requirement to use static routes. Although I suspect that it is a requirement as I was taught this during the current semester. And this is just an opportunity for me to show my lecturer that I am able to configure them. 

I also did noticed that I got the intended outcome when I simply shutdown down R1 manually. 

Thank you for clearing it up!