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trace to a destination

saimbt
Level 1
Level 1

‎01-21-2008 09:06 PM - edited ‎03-03-2019 08:21 PM

Type escape sequence to abort.

Tracing the route to 203.143.176.30

1 white-dwarf.cbbtier3.att.net (12.0.1.1) [AS 7018] 0 msec 0 msec 0 msec

2 ar13.s10-0-0.n54ny.ip.att.net (12.124.182.17) 0 msec 4 msec 4 msec

<! output truncated for brevity>

12 220.225.68.141 [AS 18101] 216 msec 224 msec 224 msec

13 220.225.68.141 [AS 18101] 232 msec 216 msec 216 msec

220.225.68.141 is the WAN IP of the internet router and the 14th hop is ideally the destination device.

I am struggling to understand why is the WAN IP shown twice in hop 12 and hop 13.

-Sai.

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ohassairi
Level 5
Level 5

‎01-22-2008 02:31 AM

really strange problem.

may be the 13th hop is a router wich address is natted to 220.225.68.141!

do you implement NAT?

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saimbt
Level 1
Level 1
In response to ohassairi

‎01-22-2008 02:56 AM

The 13th hop is the WAN IP of the perimeter router. beyond it is the another router (14th hop) which has NAT enabled.

-Sai.

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