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Multiple same IP address hops

sandyblaza
Level 1
Level 1

We have ACI that peer on fortigate firewall via OSPF on a vPC, and the ACI is configured as our gateway.

On our traceroute we have seen multiple hops with the same IP address like on the scenario below:

'From server to server within the same tenant.

traceroute 10.10.4.45

1 10.10.2.1    ----- server gateway

2 10.10.2.1

3 10.10.2.1

4  10.10.4.45

 

From server to server but the different tenants.

traceroute 10.10.4.45

1  10.10.20.1    ----- server gateway

2  1.1.1.1          ----- loopback

3  172.16.1.123 ---- primary SVI

4  172.16.1.123

5 10.10.4.45

 

Please see the diagram in the attachment.

 

 

 

 

1 Accepted Solution

Accepted Solutions

Sergiu.Daniluk
VIP Alumni
VIP Alumni

Hi @sandyblaza 

It's expected. Most likely you are pinging between servers connected to different leafs. Since you have a distributed anycast gateway, it's expected to see the same next hop multiple times.

 

Stay safe,

Sergiu

View solution in original post

2 Replies 2

Imran.M
Level 1
Level 1

 

You need to use service graph, APIC administrator can then associate policies with the traffic path which administrator can define in Cisco ACI.

Sergiu.Daniluk
VIP Alumni
VIP Alumni

Hi @sandyblaza 

It's expected. Most likely you are pinging between servers connected to different leafs. Since you have a distributed anycast gateway, it's expected to see the same next hop multiple times.

 

Stay safe,

Sergiu

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