Cisco 881 - Very slow Internet

Unanswered Question
Oct 19th, 2009
User Badges:


I have a Cisco 881 connected to broadband(Comcast) but performance is very very slow for browsing websites. I connect a wrtg54 and an performance is beyond acceptable. Trying to get performance issue resovled then will implement VPN.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Giuseppe Larosa Wed, 10/21/2009 - 07:10
User Badges:
  • Super Silver, 17500 points or more
  • Hall of Fame,

    Founding Member

Hello Ken,

looking at your configuration I see

ip route

but your internal interface Vlan1

interface Vlan1

description $FW_INSIDE$

ip address

so IP next-hop of that static route should be an IP address like 10.1.1.x

with x <>0,1, 255

you haven't implemented a VPN up to now but you have deployed a zone based firewall.

This has an impact on performance.

I cannot dig on the details of zone based firewall you have configured with SDM.

However, it can impact on performance of this small box.

is the other device configured for just routing ?

Hope to help


Ken Krutilla Wed, 10/21/2009 - 18:06
User Badges:


I wanted to thank you for your reply.. I greatly appreciated it.. I changed the route statement and saw an improvement in performance but was still slow so I started removing SDM policy maps and cleaned the config up to the basics and performance is what I anticpated it should be. The added configuration significantly degraded performance. Thanks again!!


This Discussion