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Webcast-Catalyst9k
New Member

Cisco 851 slow web access

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?

9 REPLIES
Hall of Fame Super Gold

Re: Cisco 851 slow web access

Hi, can you send output of "show dsl internface" please.

New Member

Re: Cisco 851 slow web access

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

Hall of Fame Super Gold

Re: Cisco 851 slow web access

Not really. For professional results with cisco gear, use cli only.

New Member

Re: Cisco 851 slow web access

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

Hall of Fame Super Gold

Re: Cisco 851 slow web access

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.

New Member

Re: Cisco 851 slow web access

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...

Hall of Fame Super Gold

Re: Cisco 851 slow web access

Try "no ip inspect ..." for all of them.

New Member

Re: Cisco 851 slow web access

In fact here is the running config - see attached.

Hall of Fame Super Gold

Re: Cisco 851 slow web access

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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