Cisco Bug: CSCsy81519 - ISG: ADJ for connected subscribers removal in Subnet Session
Feb 15, 2018
- Cisco IOS
Known Affected Releases
Symptoms: ISG subnet session feature if used in an environment where subscribers are connected to ISG interface on Layer 2 cloud, that is, ISG is the default gateway for the subscribers yet ISG subscribers interface is in routed mode, then adjacency to these connected subscribers is removed as soon as a subnet session is created and next hop is installed for these subscribers as the logical network id computed using the framed subnet mask received from AAA server as access accept radius attribute. Conditions: This condition will occur for subnet session feature in scenario where ISG interface is defined under routed mode; however subscribers are connected over layer-2 cloud to this ISG interface, that is, ISG is the default gateway for these subscribers.
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