Route different traffic type on two different lines using 1841?

Answered Question
Jan 8th, 2009

Currently we are having a 2 Meg line which is the only line at the moment, we are getting a new 10 Meg leased line and we want to route the specific traffic like HTTP,FTP on the 2 Meg line and the rest of traffic on the 10 Meg line. Now if we get a Cisco 1841 and set up my layout like under, will i be able to acheive what i want?


Proposed setup:-

2Mb-->Modem-->Cisco 1841--->LAN

10Mb-->Cisco1841(Provided by ISP and can not be managed by us)-->Cisco 1841-->LAN


We are not using any layer 3 switch and hence inter vlan routing has to be performed by the 1841 + will i be able to set up a DMZ as well with the above setup.

Any suggestions will be highly appreciated.


Cheers!!




Correct Answer by Collin Clark about 8 years 1 month ago

You could throw a layer 2 switch in there, but I would go with a 4-ESW, it's cheaper. That will providing switching infrastructure for your DMZ.

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zuhaibsaleem Thu, 01/08/2009 - 06:33

Thanks for the response.


Is there any tweaking that needs to be done to the router provided by the ISP which i need to be aware off?


Applying PBR to the router within my control shouldnt be a problem for me but i am not sure once the traffic is routed out from my router,how will it behave at the next hop i.e the ISP router ?

Collin Clark Thu, 01/08/2009 - 06:41

Nothing special needs to be done at the ISP router. Once it leaves your interface, 'normal' (non-PBR) routing of up stream routers take place.

zuhaibsaleem Thu, 01/08/2009 - 06:58

Thanks Collin,


How about if someone lets say who wants to access my web server which i want to place in the DMZ. I am not sure how i can make it work.

If i connect one WAN link to FE0 and another to FE1 of the router,will i then need to get a ether switch and make one of its switcport to act as DMZ port OR is there any way that i can route the traffic using only the 2 exisiting ports that are available on the 1841.


Thanks!!

Correct Answer
Collin Clark Thu, 01/08/2009 - 08:41

You could throw a layer 2 switch in there, but I would go with a 4-ESW, it's cheaper. That will providing switching infrastructure for your DMZ.

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