[LS-502] Routing Troubleshooting_Duplicated IP Created: 09/Jul/25  Updated: 18/Mar/26  Due: 18/Jul/25

Status: Open Bug
Project: L3 Support
Component/s: NEP
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Normal
Reporter: Aurobinda Panda Assignee: Eyob Tatek
Resolution: Unresolved Votes: 0
Labels: MS_OT, Service_routing
Remaining Estimate: 0 minutes
Time Spent: 1 day, 7 hours
Original Estimate: Not Specified

Attachments: PNG File Screenshot 2025-07-23 141315.png     PNG File Screenshot 2025-07-23 141406.png     JPEG File redundancy report blank.jpg    
Issue Links:
multi-level hierarchy [GANTT]
Customer:
OMAN-Tel
Planned Start:
Planned End:
Complexity: High
REQUESTER: INTERNAL
Actual Start:
Date of Baselining:

 Description   

it is found that IP is duplicated for Core Router & Core Element.



 Comments   
Comment by Bessem Manita [ 24/Jul/25 ]

Dear Team,
After further investigation, we noticed the following:
The source IP (10.132.70.1) is associated with the 5G-S1-U domain. but the VRF routing table on the source node shows that the destination IP is mapped under VRF = LTE-Media.
@Eyob Tatek, could you kindly check this configuration on your side?

Comment by Bessem Manita [ 11/Aug/25 ]

Dear Team,

As mentioned by Eyob, we already have the route domain associated with the IP in the dump file. Therefore, for CoreElement, the route domain should be parsed directly from the dump file along with the IP data information.
Dear @Aurobinda Panda, kindly share this request with the AI Team.
BR,

Comment by Abir Messaikeh [ 28/Aug/25 ]

ticket created for AI - OMAN-7263

we will check once concluded

Comment by Abir Messaikeh [ 17/Sep/25 ]

Route domain data imported in NEP but still error of duplicate IP is not resolved

Comment by Abir Messaikeh [ 17/Sep/25 ]

last status on this issue is that redundancy report is blank but HSRP IP is avaiable in IP data so we need to know next step to resolve duplicate IP case that is probably causing cloud on 4G

Comment by Marwan Kanaan [ 07/Oct/25 ]

to check if the solution of LS-561 solved this issue.

Comment by Aurobinda Panda [ 03/Feb/26 ]

@Eyob, Interface issue has been resolved for now. Kindly check.

Comment by Eyob Tatek [ 04/Mar/26 ]

The duplicate IP are now correctly represented in different VRF

Comment by Anonymous [ 18/Mar/26 ]

Hi team, I've been following this LS-502 ticket closely as we are seeing a similar IP duplication issue in our current 5G-S1-U domain deployment. Since Eyob mentioned that the duplicate IPs are now correctly represented in different VRFs, I was wondering if this fix also accounts for the specific routing logic used in the updated 2026 frameworks, like those mentioned in this technical overview at http://guiadeleovegasargentina.com? I'm trying to determine if our issue is a pure configuration overlap or if we need to implement the same VRF mapping logic you used here to resolve the cloud on 4G. Thanks!

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