H3C Technologies H3C SecBlade LB Cards - Manual (Page 12)

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1.1.1.1
Reply from 1.1.2.2: bytes=56 Sequence=4 ttl=254 time=1 ms
Record Route:
1.1.2.1
1.1.2.2
1.1.1.2
1.1.1.1
Reply from 1.1.2.2: bytes=56 Sequence=5 ttl=254 time=1 ms
Record Route:
1.1.2.1
1.1.2.2
1.1.1.2
1.1.1.1
--- 1.1.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 1/11/53 ms
The test procedure with the ping –r command (see Figure 1 ) is as follows:
1. The source device (LB) sends an ICMP echo request with the RR option being empty to the
destination device (Device B).
2. The intermediate device (Device A) adds the IP address of its outbound interface (1.1.2.1) to the
RR option of the ICMP echo request, and forwards the packet.
3. Upon receiving the request, the destination device copies the RR option in the request and adds the
IP address of its outbound interface (1.1.2.2) to the RR option. Then the destination device sends
an ICMP echo reply.
4. The intermediate device adds the IP address of its outbound interface (1.1.1.2) to the RR option in
the ICMP echo reply, and then forwards the reply.
5. Upon receiving the reply, the source device adds the IP address of its inbound interface (1.1.1.1)
to the RR option. Finally, you can get the detailed information of routes from LB to Device B:
1.1.1.1 <-> {1.1.1.2; 1.1.2.1} <-> 1.1.2.2.
Tracert
Tracert (also called "Traceroute") enables you to get the IP addresses of Layer 3 devices in the path to a
specific destination. You can use tracert to test network connectivity and identify failed nodes.