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Cisco Bug: CSCsz51243 - NAT reassembled packet not fragment when VFR is off on ingress

Last Modified

Feb 01, 2017

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

When fragments entering ASR with NAT ingress and egress configured, seem to come out of ASR as reassembled packets - and ingress virtual reassembly has been manually disabled.
When NAT ingress and egress is configured, VFR is automatically enabled on ingress and egress interfaces. If VFR is disabled from ingress interface manually, then fragments entering the ASR router will go out as reassembled packet from egress interface instead of getting fragmented as original fragments that entered the ASR.
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