From: Biondino, Joseph (joseph.biondino@au.unisys.com)
Date: Tue Aug 05 2003 - 02:37:40 GMT-3
Huang,
I agree with Scott, it does use UDP. Take this as evidence:
bbg-tafe-br1#trace
Protocol [ip]:
Target IP address: 1.1.1.1
Source address: 10.19.67.254
Numeric display [n]:
Timeout in seconds [3]:
Probe count [3]:
Minimum Time to Live [1]:
Maximum Time to Live [30]:
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Type escape sequence to abort.
Tracing the route to 1.1.1.1
1 192.168.219.54 60 msec 40 msec 36 msec
2 * *
http://www.cisco.com/warp/public/63/ping_traceroute.html#traceroute
Kind regards,
Joseph Biondino
Network Specialist
UNISYS
Network Command Centre
115 - 117 Wicks Rd
North Ryde NSW 2113
Phone: 02 9857 3149
Group: 02 9390 1107
Fax: 02 9857 3122
-----Original Message-----
From: huang gang [mailto:bgv@ggv.com.cn]
Sent: Tuesday, 5 August 2003 3:16 PM
To: Scott Morris; Tom Young; ccielab@groupstudy.com
Subject: Re: could ping but couldn't traceroute
hi,scott:
i think i can not agree with you.i think tracert is also using icmp echo.you
can sniffer it using netxray or deb ip pac det on the router.
thx
huangg
email: bgv@ggv.com.cn
Tel: 010-62984668-3912
----- Original Message -----
From: "Scott Morris" <swm@emanon.com>
To: "'Tom Young'" <gitsyoung@yahoo.co.jp>; <ccielab@groupstudy.com>
Sent: Monday, August 04, 2003 9:56 PM
Subject: RE: could ping but couldn't traceroute
> Traceroute uses high port udp as the transport. Ping uses ICMP.
>
> Access list or firewall rules in between permitted one but not the
> other.
>
> Scott
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Tom Young
> Sent: Monday, August 04, 2003 5:28 AM
> To: ccielab@groupstudy.com
> Subject: could ping but couldn't traceroute
>
>
> Hi, group
>
> A very strange question, for a global address, I
> could ping it, but couldn't traceroute it. WHY ?
> I really confused.
>
> Thanks alot
>
> User Access Verification
>
> Password:
> office01>en
> Password:
> office01#trace
> office01#traceroute 210.178.28.2
>
> Type escape sequence to abort.
> Tracing the route to 210.158.218.2
>
> 1 202.248.86.129 0 msec 0 msec 4 msec
> 2 133.160.0.1 12 msec 8 msec 12 msec
> 3 133.160.239.34 8 msec 12 msec 8 msec
> 4 133.160.191.133 20 msec 20 msec 20 msec
> 5 133.160.224.51 24 msec 16 msec 12 msec
> 6 133.160.30.32 16 msec 20 msec 20 msec
> 7 133.160.240.254 16 msec 16 msec 16 msec
> 8 133.160.12.74 21 msec 16 msec 12 msec
> 9 210.171.224.49 12 msec 12 msec 12 msec
> 10 158.205.192.197 16 msec 12 msec 12 msec
> 11 158.205.192.150 16 msec 20 msec 16 msec
> 12 158.205.224.46 16 msec 16 msec 16 msec
> 13 158.205.235.69 16 msec 16 msec 16 msec
> 14 158.205.200.74 36 msec 36 msec 28 msec
> 15 * * *
> 16 * * *
> 17 * * *
> 18 * * *
> 19 * * *
> 20 * * *
> 21 * * *
> 22 * * *
> 23 * * *
> 24 * * *
> 25 * * *
> 26 * * *
> 27 * * *
> 28 * * *
> 29 * * *
> 30 * * *
> office01#ping 210.178.28.2
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 210.158.218.2, timeout
> is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max
> = 12/14/16 ms
> office01#
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! BB is Broadband by Yahoo! http://bb.yahoo.co.jp/
>
>
> _______________________________________________________________________
> You are subscribed to the GroupStudy.com CCIE R&S Discussion Group.
>
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> _______________________________________________________________________
> You are subscribed to the GroupStudy.com CCIE R&S Discussion Group.
>
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Tue Sep 02 2003 - 18:53:53 GMT-3