Connectivity
Connectivity and managing Your Comcast Business network
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jdharia2611
New Member

Connectivity problems with Comcast

Hello Everyone,

 

We got a new comcast connection last friday and so far I have not been able to configure my router/firewall. Here is a brief overview, My firewall inside interface is 10.x.x.x and outside is a static ip address given to us by verizon( they are our current provider which I will change to comast soon). Firewall is the default gateway and the outside interface is overloaded to give PAT for internet access.

 

Firewall has a routing rule that forwards all the traffic to (x.x.x.202) interface 1 on the router and router inturn simply forwards all the traffic to the second interface going towards verizon.. this current config without any issues.

 

Router has a rule ip router 0.0.0.0 0.0.0. interface connected to verizon.

 

Now I gave the third interface of the router a static ip provided to me by comcast. Disabled dhcp on the smc gateway and also all the rules on the smc have been disabed. I connect the 3rd interface to the SMC gateway. I removed the previous rule inside the router and created a new rule to forward all the packets to interface connect to Comcast.

 

Ip route 0.0.0.0 0.0.0.0 gig 0/2

 

now with this connection I have to no internet access inside my company. Any ideas on how to fix?  I Hope I was able to explain this properly. 

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2 REPLIES 2
Trusted Forum Contributor

Re: Connectivity problems with Comcast

This is very hard to read unfortunately.

 

Please at least diagram it visually as built.

 

Please show the full internal IPs, devices etc (Internal IPs are ok to post, externals are optional).

 

Please be more specific with at least internal IPs and subnets for external

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jdharia2611
New Member

Re: Connectivity problems with Comcast

I was able to solve my issue this thread can be closed. I will post the changes I made so It can be helpful to others.

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