This is our old Q&A Site. Please post any new questions and answers at ask.wireshark.org.

Hey all, I have a packet (dont know where I can attach it, but I have a link below) that has a t1 connection to the internet that is "not working"

If anyone can help me as to why on line 94, destination host unreachable is displaying, that would be awesome. Thank you.

Here is the packet link:

https://www.dropbox.com/s/5eqli7z84taa9au/jp-capture-tdc376.pcap

asked 04 Nov '13, 15:09

candyluls's gravatar image

candyluls
6113
accept rate: 0%


In frame #93 there is an SNMP request from 140.192.39.96 -> 140.192.40.56. That request did not make it to the destination as some system on the way blocked the request. The ICMP message in frame #94 is the response for that.

94  0.001756    140.192.34.95   140.192.39.96   ICMP    70      Destination unreachable (Communication administratively filtered)

Communication administratively filtered means that there is a kind of filter (router ACL or firewall), that prohibited the SNMP request of frame #93. The system that sent the ICMP packet (140.192.34.95) is a good candidate for the ACL or firewall.

Regards
Kurt

permanent link

answered 04 Nov '13, 15:46

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
24.8k1039237
accept rate: 15%

edited 04 Nov '13, 15:48

Thank you very much kurt!!

(05 Nov '13, 11:25) candyluls
Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×36
×3

question asked: 04 Nov '13, 15:09

question was seen: 13,001 times

last updated: 05 Nov '13, 11:25

p​o​w​e​r​e​d by O​S​Q​A