[mrtg] CISCO GRE Tunnels
Francis McPhail
Francis.McPhail at blueapache.com
Wed Jun 16 08:14:27 MEST 2004
Hi I've had a bit a of a search around so I do apologise if this has
been asked before.. (But from looking I counldn't find too much
information.)
I have the following scenario;
<<LAN1>> -(CISCO 2500)- <<GRE GRE GRE>> -(CISCO 2500)- <<LAN2>>
Between LAN1, and LAN2 are a CISCO 1710, and 2600 respectivly. There is
a GRE tunnel between the two routers, and SNMP has been enabled on the
2500 clostest to LAN2. (I can pull stats from the 2500 for the Serial,
etc interfaces.)
I however cannot seem to get any traffic data out of the GRE Tunnel.
(Tunnel0 as reported in the cfgmaker results.: See below.)
Can anyone advise as to how one can pull traffic stats from a GRE
tunnel?
(Currently testing under windows and moving to a BSD/Linux platform.)
--
cfgmaker output (MRTG 2.10.12)
--
# cfgmaker public at 192.168.100.222
WorkDir: C:\Inetpub\wwwroot\mrtg
### Global Defaults
# to get bits instead of bytes and graphs growing to the right
# Options[_]: growright, bits
EnableIPv6: no
######################################################################
# System: Rupert
# Description: Cisco Internetwork Operating System Software
# IOS (tm) 2500 Software (C2500-IS56I-L), Version 11.3(11a)T1,
RELEASE SOFTWARE (fc1)
# Copyright (c) 1986-1999 by cisco Systems, Inc.
# Compiled Fri 24-Sep-99 02:53 by pwade
# Contact:
# Location: Here
######################################################################
### Interface 1 >> Descr: 'BRI0' | Name: 'BR0' | Ip: '' | Eth: '' ###
### The following interface is commented out because:
### * it is administratively DOWN
### * it is operationally DOWN
#
# Target[192.168.100.222_1]: 1:public at 192.168.100.222:
# SetEnv[192.168.100.222_1]: MRTG_INT_IP="" MRTG_INT_DESCR="BRI0"
# MaxBytes[192.168.100.222_1]: 8000
# Title[192.168.100.222_1]: Traffic Analysis for 1 -- Rupert
# PageTop[192.168.100.222_1]: <H1>Traffic Analysis for 1 -- Rupert</H1>
# <TABLE>
# <TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
# <TR><TD>Maintainer:</TD> <TD></TD></TR>
# <TR><TD>Description:</TD><TD>BRI0 </TD></TR>
# <TR><TD>ifType:</TD> <TD>propPointToPointSerial (22)</TD></TR>
# <TR><TD>ifName:</TD> <TD>BR0</TD></TR>
# <TR><TD>Max Speed:</TD> <TD>8000.0 Bytes/s</TD></TR>
# </TABLE>
### Interface 2 >> Descr: 'BRI0:1' | Name: 'BR0:1' | Ip: '' | Eth: ''
###
### The following interface is commented out because:
### * it is administratively DOWN
### * it is operationally DOWN
#
# Target[192.168.100.222_2]: 2:public at 192.168.100.222:
# SetEnv[192.168.100.222_2]: MRTG_INT_IP="" MRTG_INT_DESCR="BRI0:1"
# MaxBytes[192.168.100.222_2]: 8000
# Title[192.168.100.222_2]: Traffic Analysis for 2 -- Rupert
# PageTop[192.168.100.222_2]: <H1>Traffic Analysis for 2 -- Rupert</H1>
# <TABLE>
# <TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
# <TR><TD>Maintainer:</TD> <TD></TD></TR>
# <TR><TD>Description:</TD><TD>BRI0:1 </TD></TR>
# <TR><TD>ifType:</TD> <TD>propPointToPointSerial (22)</TD></TR>
# <TR><TD>ifName:</TD> <TD>BR0:1</TD></TR>
# <TR><TD>Max Speed:</TD> <TD>8000.0 Bytes/s</TD></TR>
# </TABLE>
### Interface 3 >> Descr: 'BRI0:2' | Name: 'BR0:2' | Ip: '' | Eth: ''
###
### The following interface is commented out because:
### * it is administratively DOWN
### * it is operationally DOWN
#
# Target[192.168.100.222_3]: 3:public at 192.168.100.222:
# SetEnv[192.168.100.222_3]: MRTG_INT_IP="" MRTG_INT_DESCR="BRI0:2"
# MaxBytes[192.168.100.222_3]: 8000
# Title[192.168.100.222_3]: Traffic Analysis for 3 -- Rupert
# PageTop[192.168.100.222_3]: <H1>Traffic Analysis for 3 -- Rupert</H1>
# <TABLE>
# <TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
# <TR><TD>Maintainer:</TD> <TD></TD></TR>
# <TR><TD>Description:</TD><TD>BRI0:2 </TD></TR>
# <TR><TD>ifType:</TD> <TD>propPointToPointSerial (22)</TD></TR>
# <TR><TD>ifName:</TD> <TD>BR0:2</TD></TR>
# <TR><TD>Max Speed:</TD> <TD>8000.0 Bytes/s</TD></TR>
# </TABLE>
### Interface 4 >> Descr: 'Ethernet0' | Name: 'Et0' | Ip:
'192.168.100.222' | Eth: '00-00-0c-38-89-11' ###
Target[192.168.100.222_4]: 4:public at 192.168.100.222:
SetEnv[192.168.100.222_4]: MRTG_INT_IP="192.168.100.222"
MRTG_INT_DESCR="Ethernet0"
MaxBytes[192.168.100.222_4]: 1250000
Title[192.168.100.222_4]: Traffic Analysis for 4 -- Rupert
PageTop[192.168.100.222_4]: <H1>Traffic Analysis for 4 -- Rupert</H1>
<TABLE>
<TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
<TR><TD>Maintainer:</TD> <TD></TD></TR>
<TR><TD>Description:</TD><TD>Ethernet0 </TD></TR>
<TR><TD>ifType:</TD> <TD>ethernetCsmacd (6)</TD></TR>
<TR><TD>ifName:</TD> <TD>Et0</TD></TR>
<TR><TD>Max Speed:</TD> <TD>1250.0 kBytes/s</TD></TR>
<TR><TD>Ip:</TD> <TD>192.168.100.222
(grant.blueapache.com.au)</TD></TR>
</TABLE>
### Interface 5 >> Descr: 'Serial0' | Name: 'Se0' | Ip: '10.0.0.6' |
Eth: '' ###
Target[192.168.100.222_5]: 5:public at 192.168.100.222:
SetEnv[192.168.100.222_5]: MRTG_INT_IP="10.0.0.6"
MRTG_INT_DESCR="Serial0"
MaxBytes[192.168.100.222_5]: 193000
Title[192.168.100.222_5]: Traffic Analysis for 5 -- Rupert
PageTop[192.168.100.222_5]: <H1>Traffic Analysis for 5 -- Rupert</H1>
<TABLE>
<TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
<TR><TD>Maintainer:</TD> <TD></TD></TR>
<TR><TD>Description:</TD><TD>Serial0 </TD></TR>
<TR><TD>ifType:</TD> <TD>propPointToPointSerial (22)</TD></TR>
<TR><TD>ifName:</TD> <TD>Se0</TD></TR>
<TR><TD>Max Speed:</TD> <TD>193.0 kBytes/s</TD></TR>
<TR><TD>Ip:</TD> <TD>10.0.0.6 ()</TD></TR>
</TABLE>
### Interface 6 >> Descr: 'Serial1' | Name: 'Se1' | Ip: '' | Eth: '' ###
### The following interface is commented out because:
### * it is administratively DOWN
### * it is operationally DOWN
#
# Target[192.168.100.222_6]: 6:public at 192.168.100.222:
# SetEnv[192.168.100.222_6]: MRTG_INT_IP="" MRTG_INT_DESCR="Serial1"
# MaxBytes[192.168.100.222_6]: 193000
# Title[192.168.100.222_6]: Traffic Analysis for 6 -- Rupert
# PageTop[192.168.100.222_6]: <H1>Traffic Analysis for 6 -- Rupert</H1>
# <TABLE>
# <TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
# <TR><TD>Maintainer:</TD> <TD></TD></TR>
# <TR><TD>Description:</TD><TD>Serial1 </TD></TR>
# <TR><TD>ifType:</TD> <TD>propPointToPointSerial (22)</TD></TR>
# <TR><TD>ifName:</TD> <TD>Se1</TD></TR>
# <TR><TD>Max Speed:</TD> <TD>193.0 kBytes/s</TD></TR>
# </TABLE>
### Interface 7 >> Descr: 'Null0' | Name: 'Nu0' | Ip: '' | Eth: '' ###
### The following interface is commented out because:
### * it is a cisco Null0 interface
#
# Target[192.168.100.222_7]: 7:public at 192.168.100.222:
# SetEnv[192.168.100.222_7]: MRTG_INT_IP="" MRTG_INT_DESCR="Null0"
# MaxBytes[192.168.100.222_7]: 536870911
# Title[192.168.100.222_7]: Traffic Analysis for 7 -- Rupert
# PageTop[192.168.100.222_7]: <H1>Traffic Analysis for 7 -- Rupert</H1>
# <TABLE>
# <TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
# <TR><TD>Maintainer:</TD> <TD></TD></TR>
# <TR><TD>Description:</TD><TD>Null0 </TD></TR>
# <TR><TD>ifType:</TD> <TD>Other (1)</TD></TR>
# <TR><TD>ifName:</TD> <TD>Nu0</TD></TR>
# <TR><TD>Max Speed:</TD> <TD>536.9 MBytes/s</TD></TR>
# </TABLE>
### Interface 8 >> Descr: 'Tunnel0' | Name: 'Tu0' | Ip: '10.254.254.1' |
Eth: '' ###
Target[192.168.100.222_8]: 8:public at 192.168.100.222:
SetEnv[192.168.100.222_8]: MRTG_INT_IP="10.254.254.1"
MRTG_INT_DESCR="Tunnel0"
MaxBytes[192.168.100.222_8]: 1125
Title[192.168.100.222_8]: Traffic Analysis for 8 -- Rupert
PageTop[192.168.100.222_8]: <H1>Traffic Analysis for 8 -- Rupert</H1>
<TABLE>
<TR><TD>System:</TD> <TD>Rupert in Here</TD></TR>
<TR><TD>Maintainer:</TD> <TD></TD></TR>
<TR><TD>Description:</TD><TD>Tunnel0 </TD></TR>
<TR><TD>ifType:</TD> <TD>Other (1)</TD></TR>
<TR><TD>ifName:</TD> <TD>Tu0</TD></TR>
<TR><TD>Max Speed:</TD> <TD>1125.0 Bytes/s</TD></TR>
<TR><TD>Ip:</TD> <TD>10.254.254.1 ()</TD></TR>
</TABLE>
***********************************************************
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