IP – CCIE23050.com CCIE Network blog HTTP://1806971003

ping with tos – dscp

Posted on November 1, 2016 by admin

dscp 1 (000001) = tos (00000100) = tos decimal 4

Router(config)#access-list 105 deny ip any any dscp 1
Router(config)#access-list 105 permit ip any any
Router(config)#interface ethernet 0/1
Router(config-if)#ip access-group 105 out
Router#show access-list 105

Rack9SW2#ping 200.0.12.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 200.0.12.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 56/58/60 ms
Rack9SW2#ping
Protocol [ip]:
Target IP address: 200.0.12.2
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: Vlan118
Type of service [0]: 4
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 200.0.12.2, timeout is 2 seconds:
Packet sent with a source address of 192.168.118.8
U.U.U
Success rate is 0 percent (0/5)
Rack9SW2#

Windows tracetcp

Posted on November 1, 2016 by admin

Tracetcp
http://tracetcp.sourceforge.net
download:
http://sourceforge.net/projects/tracetcp/files/tracetcp/
http://www.winpcap.org
WinPcap must be installed for tracetcp to work.
From a cmd prompt run the path cmd and put winmtr.exe in one of the locations listed.
C:\Windows should be listed as a path.
copy tracetcp.exe to C:\Windows
C:\Users>tracetcp www.ccie23050.com
Tracing route to 98-65-222-189 [98-65-222-189] on port 80
Over a maximum of 30 hops.
1 2 ms 2 ms 2 ms 10.3.3.3 [di.di.net]
2 4 ms 3 ms 6 ms 122.9.58.12
3 2 ms 2 ms 2 ms 95.20.125.209 [eam.net]
4 4 ms 2 ms 3 ms 95.20.125.181 [eam.net]
5 10 ms 9 ms 10 ms 123.186.240.32 [eam.net]
6 10 ms 9 ms 13 ms 151.55.254.138 [eam.net]
7 10 ms 18 ms 9 ms 4.71.198.25 [xe-8-3-0.edge3.dallas1.level3.net]
8 14 ms 10 ms 9 ms 4.69.145.254 [vlan90.csw4.dallas1.level3.net]
9 10 ms 9 ms 9 ms 4.69.151.158 [ae-83-83.ebr3.dallas1.level3.net]
10 42 ms 42 ms 41 ms 4.69.132.77 [ae-3-3.ebr2.losangeles1.level3.net]
11 41 ms 42 ms 44 ms 4.69.137.22 [ae-72-72.csw2.losangeles1.level3.net]
12 42 ms 41 ms 41 ms 4.69.144.10 [ae-1-60.edge1.losangeles9.level3.net]
13 43 ms 42 ms 42 ms 4.68.63.190 [sbc-level3-xe-1.losangeles1.level3.net]
14 123 ms 166 ms 136 ms 12.83.48.54
15 * * * Request timed out.
16 58 ms 57 ms 55 ms 75.29.128.9
17 58 ms 57 ms 57 ms 98.65.222.189 [98-65-222-189]
18 Destination Reached in 66 ms. Connection established to 98.65.222.189
Trace Complete.
C:\Users>tracetcp www.ccie23050.com:443
C:\Users>tracetcp -?
Usage: tracetcp host [options]
where host = hostName|ipAddress[:portNumber|serviceName]
if portNumber or serviceName is not present then port 80 (http) is assumed.
Options:
-? Displays help information.
-F Disables the Anti-flood timer.
-R Use Raw Sockets to send packets.
-c Select condensed output mode.
-g address Send to remote host using specified gateway.
-h start_hop Starts trace at hop specified.
-m max_hops Maximum number of hops to reach target.
-n No reverse DNS lookups for each node.
-p num_pings # of pings per hop (default 3).
-r p1 p2 Multiple traces from port p1 to p2.
-s p1 p2 Scan ports p1 to p2. Eqiv of: -cnr p1 p2 -h 128 -m 1 -p 1
-t timeout Wait timeout milliseconds for each reply.
-v Displays version information.
Examples:
tracetcp www.microsoft.com:80 -m 60
tracetcp post.sponge.com:smtp
tracetcp 192.168.0.1 -n -t 500
C:\Users>

Windows WinMTR

Posted on November 1, 2016 by admin

http://winmtr.net/
http://winmtr.net/winmtr_download/
From a cmd prompt run the path cmd and put winmtr.exe in one of the locations listed.
C:\Windows should be listed as a path.
copy winmtr.exe to C:\Windows
To run double click on the winmtr.exe or from the cmd line execute the following.
C:\Users\chrisk>winmtr.exe www.ccie23050.com
|——————————————————————————————|
| WinMTR statistics |
| Host – % | Sent | Recv | Best | Avrg | Wrst | Last |
|————————————————|——|——|——|——|——|——|
| xe-8-3-0.edge3.dallas1.level3.net – 0 | 24 | 24 | 8 | 10 | 33 | 9 |
| vlan70.csw2.dallas1.level3.net – 0 | 24 | 24 | 9 | 10 | 33 | 9 |
| ae-73-73.ebr3.dallas1.level3.net – 0 | 24 | 24 | 8 | 9 | 12 | 11 |
| ae-3-3.ebr2.losangeles1.level3.net – 0 | 24 | 24 | 40 | 41 | 45 | 43 |
| ae-92-92.csw4.losangeles1.level3.net – 0 | 24 | 24 | 40 | 41 | 45 | 41 |
| ae-4-90.edge1.losangeles9.level3.net – 0 | 24 | 24 | 40 | 48 | 105 | 40 |
| 4.68.62.202 – 0 | 24 | 24 | 41 | 45 | 97 | 97 |
| 12.83.48.54 – 0 | 24 | 24 | 52 | 52 | 55 | 53 |
|________________________________________________|______|______|______|______|______|______|
WinMTR v0.92 GPL V2 by Appnor MSP – Fully Managed Hosting & Cloud Provider

Windows ipconfig /displaydns

Posted on November 1, 2016 by admin

To view a Windows host DNS cache.
ipconfig /displaydns
To clear a Windows host DNS cache.
ipconfig /flushdns

Windows tracert

Posted on November 1, 2016 by admin

C:\>tracert www.yahoo.com
Tracing route to any-fp.wa1.b.yahoo.com [209.191.122.70]
over a maximum of 30 hops:
1 2 ms 3 ms 3 ms home [192.168.35.254]
2 8 ms 8 ms 7 ms 88.97.225.3.lightspeed.ltrkar.sbcglobal.net [88.97.225.3]
3 8 ms 6 ms 6 ms 20.33.128.50
4 6 ms 6 ms 5 ms 150.164.90.174
5 17 ms 17 ms 16 ms ppp-151-164-52-65.rcsntx.swbell.net [151.164.52.65]
6 18 ms 16 ms 17 ms asn10310-11-yahoo.eqdltx.sbcglobal.net [151.164.250.202]
7 27 ms 18 ms 19 ms ae-2-d100.msr1.mud.yahoo.com [216.115.104.105]
8 18 ms 19 ms 18 ms te-6-1.fab1-a-gdc.mud.yahoo.com [209.191.78.129]
9 19 ms 18 ms 17 ms te-8-2.bas-c2.mud.yahoo.com [209.191.78.175]
10 19 ms 17 ms 18 ms ir1.fp.vip.mud.yahoo.com [209.191.122.70]
Trace complete.
-d option for no names.
C:\>tracert -d www.yahoo.com
Tracing route to any-fp.wa1.b.yahoo.com [209.191.122.70]
over a maximum of 30 hops:
1 3 ms 1 ms 2 ms 192.168.35.254
2 8 ms 5 ms 6 ms 88.97.225.3
3 14 ms 10 ms 6 ms 20.33.128.50
4 7 ms 6 ms 7 ms 150.164.90.174
5 19 ms 17 ms 17 ms 151.164.52.65
6 16 ms 17 ms 16 ms 151.164.250.202
7 19 ms 19 ms 18 ms 216.115.104.101
8 18 ms 19 ms 18 ms 209.191.78.159
9 19 ms 18 ms 18 ms 68.142.193.7
10 19 ms 19 ms 19 ms 209.191.122.70
Trace complete.
C:\>

RFC 5735

Posted on November 1, 2016 by admin

Address Blocks for RFC 5735
——————————————————————
0.0.0.0/8 “This” Network RFC 1122, Section 3.2.1.3
10.0.0.0/8 Private-Use Networks RFC 1918
127.0.0.0/8 Loopback RFC 1122, Section 3.2.1.3
169.254.0.0/16 Link Local RFC 3927
172.16.0.0/12 Private-Use Networks RFC 1918
192.0.0.0/24 IETF Protocol Assignments RFC 5736
192.0.2.0/24 TEST-NET-1 RFC 5737
192.88.99.0/24 6to4 Relay Anycast RFC 3068
192.168.0.0/16 Private-Use Networks RFC 1918
198.18.0.0/15 Network Interconnect
Device Benchmark Testing RFC 2544
198.51.100.0/24 TEST-NET-2 RFC 5737
203.0.113.0/24 TEST-NET-3 RFC 5737
224.0.0.0/4 Multicast RFC 3171
240.0.0.0/4 Reserved for Future Use RFC 1112, Section 4
255.255.255.255/32 Limited Broadcast RFC 919, Section 7
RFC 922, Section 7