Cisco Cisco Packet Data Gateway (PDG) Fehlerbehebungsanleitung

 

▄  Cisco ASR 5000 Series Enhanced Feature Configuration Guide 

Figure given below provides a flow of process for outgoing packets on GRE interface: 

Start

Receive IPV4 

packet with correct 

FLOWID

Do a forwarding 

lookup.

Lookup 

Successful?

Get Forwarding Record

Based on Flow 

record information, 

prepare the GRE 

header and outer 

IPV4 header

Process the 

packet as if it was 

an IPV4 packet 

received from 

Session Manager

End

Take default route

No

Yes

Does it have load 

balancing enabled

No

Do a Hash lookup 

based on SA and 

DA to get the 

Tunnel to be used