Regarding tracert

ncnaveen_arasu · ‎01-07-2013

HI friends,

Type escape sequence to abort.

Tracing the route to google.com (74.125.236.97)

1 10.255.232.42 4 msec

10.255.232.38 0 msec

10.255.232.42 4 msec

2 10.255.232.221 12 msec

10.255.238.237 40 msec

10.255.235.153 8 msec

3 10.255.222.225 40 msec

10.255.221.65 8 msec

10.255.222.65 12 msec

4 * *

In the above output we get an 3 ip's in each hop. what it indicates. Usually trace output shows the ingress IP of each hop.

Thnaks in advance,

Naveen

Abzal · ‎01-07-2013

Hi,http://tools.ietf.org/html/rfc1812#section-4.3.2.4

If I'm not wrong it indicates that your router is multihomed to two routers. And your router is load-balancing these two routers. The router with IP 10.255.232.42 is also multihomed. Can you show you network diagram?

According to RFC1812:

IP source address in an ICMP message originated by the router MUST be one of the IP 
addresses associated with the physical interface over which the ICMP message is 
transmitted.

Hope it will help.

Best regards,
Abzal