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The explanation for tracert result !<13>

Publication Date:  2012-07-27 Views:  52 Downloads:  0
Issue Description
How to explain the following trace results, why there is?
tracert -a 10.200.113.202 10.97.64.129 
traceroute to 10.97.64.129(10.97.64.129) 30 hops max,40 bytes packet 
1 10.97.92.9 3 ms  34 ms  2 ms 
2 10.97.92.9 4 ms  !<13> 3 ms  !<13> 3 ms  !<13> 
Alarm Information

Null

Handling Process
The showed result 'type=3 code=13' packet, its meaning is the packet is discarded dut to acl filter,the communication is forbidden forcely.
Root Cause
On NE40, enable debug ip icmp and see the following information
tracert -a 10.200.113.202 10.97.64.129 
traceroute to 10.97.64.129(10.97.64.129) 30 hops max,40 bytes packet
*0.20737910 NE40 IP/8/debug_icmp:
ICMP Receive: ttl-exceeded(Type=11, Code=0),
Src = 10.97.92.9, Dst = 10.200.11 3.202 10.97.92.9 4 ms 
ICMP Receive: ttl-exceeded(Type=11, Code=0),
Src = 10.97.92.9, Dst = 10.200.113.202 4 ms 
ICMP Receive: ttl-exceeded(Type=11, Code=0),
Src = 10.97.92.9, Dst = 10.200.113.202 4 ms  2 
*0.20737923 NE40 IP/8/debug_icmp: ICMP Receive: communication-filter-forbidden(Type=3, Code=13), 
Src = 10.97.92.9, Dst = 10.200.113.202 10.97.92.9 5 ms !<13> 
ICMP Receive: communication-filter-forbidden(Type=3, Code=13), 
Src = 10.97.92.9, Dst = 10.200.113.202 4 ms !<13> 
ICMP Receive: communication-filter-forbidden(Type=3, Code=13), 
Src = 10.97.92.9 , Dst = 10.200.113.202   
The device backs type=3 code=13 packet, its meaning is the packet is discarded dut to acl filter,the communication is forbidden forcely
Suggestions

Null

END