Router newbiw needs help with 805 configuration.

[jlancton]

Hi,

I've got two Cisco 805's connecting two locations. Microsoft has advised us to open certain tcp and udp ports to allow Win2000 and XP to work properly over the WAN. I found out how to do ip forward-protocol udp <port>, but couldn't find how to do it with tcp ports. I would greatly appreciate any help on how to open tcp ports on the 805.

Thanks,

-Jeff Lancton

 

[ITnetworker]

by default routers forwards any udp and tcp port that are not broadcasted unless it is denyed by extended access lists if you want to send a broadcast tcp or udp port to specified address via the router use the following command
ip helper-address <ip-address>
this is the command it will allow the common broadcast tcp/udp ports like DNS and DHCP broadcasts

 

[ITnetworker]

by default routers forwards any udp and tcp port that are not broadcasted unless it is denyed by extended access lists if you want to send a broadcast tcp or udp port to specified address via the router use the following command
ip helper-address <ip-address>
on the interface which you will recieve the broadcast tcp/udp and also you can use the following command with access lists
ip directed-broadcast
this is the command it will allow the common broadcast tcp/udp ports like DNS and DHCP broadcasts

 

[jlancton]

Thanks for the reply; I've got the ip helper address in for the DHCP/WINS server, but Microsoft is saying there's other ports required for Active Directory such as Kerberos, LDAP etc. Do I need to do anything specific for them?

Thanks,

-Jeff