@Amos I understand the "policy routing" and also checked with tcp_outgoing_address, but I am not able to figure out how can I use acl to filter the large traffic and use it with the tcp_outgoing_address. Currently with "reply_body_max_size 15 MB officelan" I am able to discard large downloads, but can you please tell me instead of discarding is there a way I can use the acl with tcp_outgoing_address to redirect the download through Link-2 (using policy routing) ? Regards Supratik On Mon, Apr 11, 2011 at 5:08 AM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > On Sun, 10 Apr 2011 21:04:59 +0530, Supratik Goswami wrote: >> >> Hello, >> >> I am using squid-3.1.11-1.el5 in a production server which acts as a >> gateway of our network. >> Every system is connected to the internet through the Squid proxy server. >> >> In my Squid configuration I am using "reply_body_max_size 15 MB >> officelan" to restrict download of large files. >> I am also using the following delay pool parameters to restrict >> Squid's overall bandwidth consumption. >> >> delay_pools 1 >> delay_class 1 1 >> delay_access 1 allow all >> delay_parameters 1 192000/192000 >> >> In my environment we have two ISP providers connected using two >> routers Link-1 and Link-2. >> Currently Squid uses Link-1 to connect to the internet. >> >> Currently if a download file size if more than 15 MB squid restricts >> the download as per the above configuration >> by my objective is to redirect requests through Link-2 if the download >> size is larger than 15 MB. >> >> While looking into the Squid mailing list archive I came across this >> post http://www.squid-cache.org/mail-archive/squid-users/200707/0678.html. >> I wen through the Squid documentation but I am not able to find how >> can a achieve it using Squid. >> >> Any help would be highly appreciated. > > You do it exactly as Henrik described in that post. tcp_outgoing_address > sets the IP used to send requests, the OS does the policy work. > Lookup "policy routing" in your OS networking documentation for how to set > it up there. > > There is also the QoS equivalents (tcp_outgoing_tos and qos_flows) that can > be used nowdays as alternatives to the outgoing IP. How to manage and > configure QoS should also be in your OS networking documentation. > > Amos >
