Cisco 851 slow web access

Unanswered Question
Mar 11th, 2008

Just installed an 851 at two locations using SDM express, no real features needed but these locations have quite a few computers on the network and the consumer grade routers they've been using were locking up quite regularly.


Upgrade to the new 851 went flawless, with the first company just using SDM express setup. Now the second company, which uses the same ISP was not so flawless. After setting the unit up the internet was very slow, almost dialup speeds. I'm using 10% cpu and 38% memory - any ideas?

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tftcomputers Tue, 03/11/2008 - 12:47

Not able to console in at this time, would SDM's 'show interfaces' have the info you need?

tftcomputers Wed, 03/12/2008 - 08:25

Ok, at the router using cli, however - it's a cable interface not DSL... any further thoughts?

Paolo Bevilacqua Wed, 03/12/2008 - 09:04

You're right, my bad, the 851 is ethernet.


Do you have a lot on "inspect" statements as usually sdm does? If so try removing them.

tftcomputers Wed, 03/12/2008 - 09:19

ip inspect name DEFAULT100 cuseeme

ip inspect name DEFAULT100 ftp

ip inspect name DEFAULT100 h323

ip inspect name DEFAULT100 icmp

ip inspect name DEFAULT100 rcmd

ip inspect name DEFAULT100 realaudio

ip inspect name DEFAULT100 rtsp

ip inspect name DEFAULT100 esmtp

ip inspect name DEFAULT100 sqlnet

ip inspect name DEFAULT100 streamworks

ip inspect name DEFAULT100 tftp

ip inspect name DEFAULT100 tcp

ip inspect name DEFAULT100 udp

ip inspect name DEFAULT100 vdolive


That's all I can see...

Paolo Bevilacqua Wed, 03/12/2008 - 12:04

Try:


interface fa4

no ip inspect DEFAULT100 out


interface vlan1

no ip tcp mss-adjust 1452

no ip route-cache flow


ip route 0.0.0.0 0.0.0.0 72.215.141.X <-- replace with actual default gateway

no ip route 0.0.0.0 0.0.0.0 fa4


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