11-12-2004 11:26 AM - edited 03-02-2019 07:55 PM
I have two 2501s each with IOS 12.2 and 16MB. They are linked with a DTE/DCE serail cable. One is linked to our T-1 and the other to our LAN. When going through the routers to the net, I get about 60k throughput. If I bypass the Ciscos, I get about 866k throughput. This is much too dramatic of a diff for my tastes.
Here is the output of `show run' for each router. The routers are simply named (obviously) WAN and LAN.
WAN#sh run
Building configuration...
Current configuration : 913 bytes
!
version 12.2
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname WAN
!
logging rate-limit console 10 except errors
!
ip subnet-zero
no ip finger
ip name-server x.x.x.x
ip name-server x.x.x.x
!
no ip dhcp-client network-discovery
!
interface Ethernet0
ip address x.x.x.71 255.255.255.240
ip nat outside
!
interface Serial0
bandwidth 1000
ip address 10.1.1.1 255.255.255.0
ip nat inside
no ip mroute-cache
clockrate 64000
!
interface Serial1
no ip address
shutdown
!
ip kerberos source-interface any
ip nat inside source list 1 interface Serial0 overload
ip nat inside source static 10.1.1.2 x.x.x.71
ip classless
ip route 0.0.0.0 0.0.0.0 x.x.x.x (this is the router provided by the ISP)
ip route 192.168.1.0 255.255.255.0 10.1.1.2
no ip http server
!
line con 0
transport input none
line aux 0
line vty 0 4
login
!
end
Now the LAN Router:
LAN#sh run
Building configuration...
Current configuration : 838 bytes
!
version 12.2
no service single-slot-reload-enable
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname LAN
!
logging rate-limit console 10 except errors
!
ip subnet-zero
no ip finger
ip name-server 192.168.1.7
!
no ip dhcp-client network-discovery
!
interface Ethernet0
ip address 192.168.1.1 255.255.255.0
ip nat inside
!
interface Serial0
bandwidth 1000
ip address 10.1.1.2 255.255.255.0
ip nat outside
!
interface Serial1
no ip address
shutdown
!
ip kerberos source-interface any
ip nat pool overld 10.1.1.2 10.1.1.2 prefix-length 24
ip nat inside source list 7 pool overld overload
ip classless
ip route 0.0.0.0 0.0.0.0 10.1.1.1
no ip http server
!
access-list 7 permit 192.168.1.32 0.0.0.199
!
!
line con 0
transport input none
line aux 0
line vty 0 4
login
!
end
I found that I had to run NAT on both routers to get a link. If there is a way to streamline these configs, I would appreciate it. I have also tinkered with the bandwidth settings up and down, currently at 1000 and it does not seem to have any effect. While I am at it, I'll say right now that I am a true newbie to Cisco IOS, but have been doing the best I can using Cisco's site and some books.
If I am posting in the wrong forum please point me to the correct one. Also apologies for the long post.
11-12-2004 12:37 PM
The bandwidth setting has nothing to do with your throughput. your clockrate 64000 on your WAN router is setting your bps to 64k. Try changing your clockrate.
Ramzi.
11-15-2004 06:26 AM
Ramzi!
Thank you. That was it. I reset the clockrate to 1000000 and it flies at 886k typical. I did not set to full 1500000 as I do not require full `bandwidth' throughput from the T.
Again, thanks that really helped me.
Bob
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide