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Cisco Bug: CSCtc32864 - Traceroute response has incorrect source IP on E3 LC with PPP unnumbered

Last Modified

Jan 13, 2017

Products (1)

  • Cisco 12000 Series Routers

Known Affected Releases


Description (partial)

Traceroute response from an unnumbered interface on an Engine 3 line card does not use the correct outgoing IP address for the interface on which the traceroute packet arrived, instead uses a different interface IP which is confusing for maintenance and troubleshooting purposes.


The interface uses PPP wth IP unnumbered to an attached router also using IP unnumbered.
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