Miscellaneous TCP / IP Tips
C:\WINDOWS> tracert -?
Usage: tracert [-d] [-h maximum_hops] [-j host-list] [-w timeout] target_name
Options:
-d Do not resolve addresses to hostnames.
-h maximum_hops Maximum number of hops to search for target.
-j host-list Loose source route along host-list.
-w timeout Wait timeout milliseconds for each reply.
C:\WINDOWS>
C:\WINDOWS> netstat -a
Active Connections
Proto Local Address Foreign Address State
TCP epix:1144 192.168.0.1:nbsession ESTABLISHED
UDP epix:domain *:*
UDP epix:1030 *:*
UDP epix:nbname *:*
UDP epix:nbdatagram *:*
UDP epix:nbname *:*
UDP epix:nbdatagram *:*
C:\WINDOWS>
C:\WINDOWS> netstat -e
Interface Statistics
Received Sent
Bytes 11506394 8550634
Unicast packets 11926 14509
Non-unicast packets 6337 229
Discards 0 0
Errors 0 0
Unknown protocols 0
C:\WINDOWS>
C:\WINDOWS> netstat -n
Active Connections
Proto Local Address Foreign Address State
TCP 192.168.0.2:1144 192.168.0.1:139 ESTABLISHED
C:\WINDOWS>
IP Statistics
Packets Received = 18159
Received Header Errors = 0
Received Address Errors = 0
Datagrams Forwarded = 0
Unknown Protocols Received = 0
Received Packets Discarded = 0
Received Packets Delivered = 18159
Output Requests = 14681
Routing Discards = 204
Discarded Output Packets = 0
Output Packet No Route = 0
Reassembly Required = 0
Reassembly Successful = 0
Reassembly Failures = 0
Datagrams Successfully Fragmented = 0
Datagrams Failing Fragmentation = 0
Fragments Created = 0
ICMP Statistics
Received Sent
Messages 49 50
Errors 0 0
Destination Unreachable 0 1
Time Exceeded 42 0
Parameter Problems 0 0
Source Quenchs 0 0
Redirects 0 0
Echos 0 49
Echo Replies 7 0
Timestamps 0 0
Timestamp Replies 0 0
Address Masks 0 0
Address Mask Replies 0 0
TCP Statistics
Active Opens = 85
Passive Opens = 0
Failed Connection Attempts = 0
Reset Connections = 62
Current Connections = 1
Segments Received = 11754
Segments Sent = 14318
Segments Retransmitted = 22
UDP Statistics
Datagrams Received = 6355
No Ports = 1
Receive Errors = 0
Datagrams Sent = 291
C:\WINDOWS>
C:\WINDOWS> netstat -r
Route Table
Active Routes:
Network Address Netmask Gateway Address Interface Metric
0.0.0.0 0.0.0.0 199.224.69.203 199.224.69.203 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.2 192.168.0.2 2
192.168.0.2 255.255.255.255 127.0.0.1 127.0.0.1 1
192.168.0.255 255.255.255.255 192.168.0.2 192.168.0.2 1
199.224.69.0 255.255.255.0 199.224.69.203 199.224.69.203 1
199.224.69.203 255.255.255.255 127.0.0.1 127.0.0.1 1
199.224.69.255 255.255.255.255 199.224.69.203 199.224.69.203 1
224.0.0.0 224.0.0.0 199.224.69.203 199.224.69.203 1
224.0.0.0 224.0.0.0 192.168.0.2 192.168.0.2 1
255.255.255.255 255.255.255.255 192.168.0.2 192.168.0.2 1
Active Connections
Proto Local Address Foreign Address State
TCP epix:1144 192.168.0.1:nbsession ESTABLISHED
C:\WINDOWS>
C:\WINDOWS> netstat -?
Displays protocol statistics and current TCP/IP network connections.
NETSTAT [-a] [-e] [-n] [-s] [-p proto] [-r] [interval]
-a Displays all connections and listening ports. (Server-side
connections are normally not shown).
-e Displays Ethernet statistics. This may be combined with the -s
option.
-n Displays addresses and port numbers in numerical form.
-p proto Shows connections for the protocol specified by proto; proto
may be tcp or udp. If used with the -s option to display
per-protocol statistics, proto may be tcp, udp, or ip.
-r Displays the contents of the routing table.
-s Displays per-protocol statistics. By default, statistics are
shown for TCP, UDP and IP; the -p option may be used to specify
a subset of the default.
interval Redisplays selected statistics, pausing interval seconds
between each display. Press CTRL+C to stop redisplaying
statistics. If omitted, netstat will print the current
configuration information once.
C:\WINDOWS>
Tracing route to 206.228.73.254 over a maximum of 30 hops
1 139 ms 125 ms 128 ms lwby-69terminal04.epix.net [199.224.69.11]
2 131 ms 138 ms 121 ms lwby.epix.net [199.224.69.1]
3 139 ms 128 ms 141 ms svcr05-2.epix.net [199.224.88.53]
4 134 ms 142 ms 129 ms svcr03-1.epix.net [199.224.88.49]
5 156 ms 133 ms 139 ms svcr01-2.epix.net [199.224.103.193]
6 229 ms 204 ms 139 ms svcr02-1.epix.net [199.224.103.186]
7 143 ms 137 ms 307 ms svcr04-1.epix.net [199.224.88.22]
8 217 ms 162 ms 137 ms clsm02-2.epix.net [199.224.88.26]
9 168 ms 161 ms 173 ms sl-pen-14-S4/0-4xT1.sprintlink.net [144.228.164.
45]
10 175 ms 159 ms 171 ms 208.28.7.25
11 168 ms 194 ms 164 ms 144.232.0.77
12 186 ms 204 ms 200 ms sl-pen-9-F0/0.sprintlink.net [144.228.60.9]
13 219 ms 425 ms 304 ms sl-microserveply-1-S0-T1.sprintlink.net [144.228
.69.138]
14 507 ms 381 ms 183 ms cr-harris1-e01-inet2.east.microserve.net [207.44
.7.34]
15 183 ms 206 ms 209 ms 206.228.73.254
Trace complete.
C:\WINDOWS>