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how to open tcp port on cisco router 2811

By tan_manoj ·
We have cisco router 2811 in our office for lease line. router connects to main computer. Main computer have two lan card one for router and second one use for local lan. now problem is that when we want to access the lan computer remotly outside our network with help of software it says u must open port in router or allow incoming connections in router how can i do this in cisco router 2811.

pls help me

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by dw_ay In reply to how to open tcp port on c ...

you can try this from configuration terminal mode:
- access-list aclnumber(like 110) permit tcp sourcesIPnet(or any to allow all external) destinationIP wildcardmask(ex:255.255.255.255)
eq tcpportnumber.
Then apply to an interface like internal interface of router, example from internal interface config mode:
- ip access-group 110 out

This only will open access to your main cmptr, is there a proxy configuration on your main computer? maybe need to configure proxy to allow access to internal LAN

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Open that perticular port

by aadeshjoshi In reply to how to open tcp port on c ...

Hi
u have to alllow that port which the software is using on your router.
i think access list is blocking that port.
so add a statment to allow that port.

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