I configured a Cisco 2621 router. The problem with this router is its
throughput. It is ten times slower than a linux machine acting as a
gateway with two ethernet interfaces. The properties of linux machine is
Intel celeron 400, 64 MByte RAM. The second important point is that,
the router gave this result with no access-lists. The last one to say is
that,, NAT operation at this cisco 2621 degrades performance by 60%
percent. This is ridicilous, if all cisco routers are like this one.
May you please comment on this, after examining the configuration of the
router? Is it normal? What should I do to increase performance?
Below, you will find
-----------------SHOW STARTUP-CONFIG------------------------
!
! Last configuration change at 12:20:40 UTC Thu Nov 30 2000
! NVRAM config last updated at 13:01:17 UTC Thu Nov 30 2000
!
version 12.0
service tcp-keepalives-in
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname router2
!
no logging buffered
no logging console
no logging monitor
enable secret 5 ***********
!
!
!
!
!
memory-size iomem 15
ip subnet-zero
no ip source-route
no ip finger
ip tcp selective-ack
ip tcp path-mtu-discovery
ip telnet quiet
!
no ip bootp server
ip audit notify log
ip audit po max-events 100
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.1.89 255.255.255.0
no ip unreachables
no ip directed-broadcast
ip nat inside
no ip mroute-cache
duplex auto
speed auto
no cdp enable
!
interface Serial0/0
no ip address
no ip directed-broadcast
no ip mroute-cache
shutdown
no cdp enable
!
interface FastEthernet0/1
ip address 193.177.77.77 255.255.255.0
no ip unreachables
no ip directed-broadcast
ip nat outside
no ip mroute-cache
duplex auto
speed auto
no cdp enable
!
interface Serial0/1
no ip address
no ip directed-broadcast
no ip mroute-cache
shutdown
no cdp enable
!
ip nat inside source list 2 interface FastEthernet0/1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
no ip http server
!
logging trap debugging
logging facility local6
logging source-interface FastEthernet0/0
access-list 2 permit 192.168.1.0 0.0.0.255
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
no cdp run
!
line con 0
password 7 ***************
login
transport input none
line aux 0
password 7 ****************
login
line vty 0 4
password 7 **********************
login
transport input none
!
scheduler interval 500
no scheduler allocate
end
--------------------SHOW VERSION-------------------
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IO3S56I-M), Version 12.0(7)XK1, EARLY
DEPLOYMENT
RELEASE SOFTWARE (fc1)
TAC:Home:SW:IOS:Specials for info
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Wed 15-Mar-00 08:53 by phanguye
Image text-base: 0x80008088, data-base: 0x80EB7238
ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
ROM: C2600 Software (C2600-IO3S56I-M), Version 12.0(7)XK1, EARLY
DEPLOYMENT RELE
ASE SOFTWARE (fc1)
router2 uptime is 4 days, 18 hours, 16 minutes
System returned to ROM by reload at 15:57:01 UTC Fri Dec 1 2000
System restarted at 15:58:42 UTC Fri Dec 1 2000
System image file is "flash:aaa1321.bin"
Host configuration file is "tftp://192.168.5.78/router2_acl"
cisco 2621 (MPC860) processor (revision 0x102) with 41984K/7168K bytes
of memory
.
Processor board ID JAB040906MD (3523830294)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
2 FastEthernet/IEEE 802.3 interface(s)
2 Low-speed serial(sync/async) network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
Configuration register is 0x2102
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