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Forward udp broadcasts to subnet

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rsissons Wed, 06/04/2003 - 16:05
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Yes, you can use the subnet broadcast address as the helper address.

thisisshanky Wed, 06/04/2003 - 20:49
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For specific ports, use,



Router(config)#ip forward-protocol udp 6614


Forward the broadcast as a directed broadcast on to the subnet. Say for example if subnet is 192.168.1.0/24, then the helper-address command would look like, "ip helper-addres 192.168.1.255"


When you enable helper-address 8 default udp ports are always forwarded. You might want to disable them.


no ip forward-protocol udp bootpc

no ip forward-protocol udp tftp

no ip forward-protocol udp nameserver

no ip forward-protocol udp domain

no ip forward-protocol udp time

no ip forward-protocol udp tacacs


HTH


I tried using the broadcast address (172.17.255.255) as the helper address but I did not see any UDP traffic being forwarded. If I used the IP address the VPN client gets from the vpn pool (172.17.1.5), I could see lots of UDP traffic. I also tried using 172.17.1.255 as the helper address with no success.


Any ideas?

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