Multi ISP - 1 router

[NoWittyName]

Currently our WAN (300 windows 2000/xp/vista clients) is routing for the internet through one firewall (to be replaced by a Cisco ASA5500).

We have a dedicated 2mb line, which is being hit hard by users and I am exploring ways of routing non-essential traffic through a cheaper ADSL line.

Is it possible to plug two internet connections into the CISCO router, but route only client web traffic through one of the ports on the router? So that our website, email, nfuse and VPN traffic continues to use the dedicated leased line?

I presume I need to set the default gateway on the clients through DHCP, but this would require a second router surely?

Thanks, in advance

Anthony

 

[NoWittyName]

Thinking about this overnight, I suppose a proxy server would be the best way to go, then all systems could route web traffic through this - but still the question remains how would I point this to the adsl line without a second router?

Thanks, in advance
Anthony

 

[leedsit]

Hi,

All you need to do is have both circuits going to the same router and use a little policy routing to direct traffic to the desired circuit. I.E if the traffic is 80 / 443 based, send it down circuit one, if its FTP etc send it down the other ( dont using access lists to identify the traffic ). Do a cisco search on policy routing and this should give you some pointers.

Lee.

LEEroy
MCNE6,CCNP,CWNA,CCSA,Project+