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switchninja

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October 25th, 2012

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switchninja
commented on
switchninja
's post

11 years ago

Hi, comcast is filtering traffic to the smb ports on my network, particularly tcp:443 and tcp:139.  (confirmed with a tcp traceroute) Could that filter please be removed?  In fact, if there are any additional filters being applied to my /28 subnet, could they also be removed? thank you kindly!

Comcast is nothing more than a utility provider to me.  My electrical company does not protect me from blowing my circuit breaker, so I do not want my internet provider to play nanny to me and block my internet connectivity for 'my own protection.' I

switchninja
commented on
switchninja
's post

11 years ago

Hi, comcast is filtering traffic to the smb ports on my network, particularly tcp:443 and tcp:139.  (confirmed with a tcp traceroute) Could that filter please be removed?  In fact, if there are any additional filters being applied to my /28 subnet, could they also be removed? thank you kindly!

Okay, thats a handy list.  How do I go about getting those blocks removed? I thought business class internet didn't come with the nanny over my shoulder...  😞

switchninja
posted a question

November 25, 2013

11 years ago

Hi, comcast is filtering traffic to the smb ports on my network, particularly tcp:443 and tcp:139.  (confirmed with a tcp traceroute) Could that filter please be removed?  In fact, if there are any additional filters being applied to my /28 subnet, could they also be removed? thank you kindly!

switchninja
commented on
switchninja
's post

12 years ago

Hi, I am trying to disable all the firewalling and network address translation features on the smc router, as I will be using my entire static ip pool for physical devices, and I do not want any sort of firewalling or security of any sort enabled.  I seem to have successfully done so, as hosts exter

Update: Comcast_John provided me the clue to solve this. The WAN interface is being bridged to the LAN interface.  Set the internal LAN ip to a private rfc1918 address, i.e. 10/8, 172.16/12, 192.168/16, and use that private subnet as a transit subnet

switchninja
commented on
switchninja
's post

12 years ago

Hi, I am trying to disable all the firewalling and network address translation features on the smc router, as I will be using my entire static ip pool for physical devices, and I do not want any sort of firewalling or security of any sort enabled.  I seem to have successfully done so, as hosts exter

Yes, that is exactly what I expect to have happening, however, that is not what is actually occuring. As I said, outbound initiated sessions -are- being natted. Here is a sample tcp session being originated from my internal network (public ip host of

switchninja
joined community.

October 25, 2012

switchninja
posted a question

October 25, 2012

12 years ago

Hi, I am trying to disable all the firewalling and network address translation features on the smc router, as I will be using my entire static ip pool for physical devices, and I do not want any sort of firewalling or security of any sort enabled.  I seem to have successfully done so, as hosts exter