Jan 15, 2020 · Last configuration change at 11:27:41 UTC Fri Jun 2 2017 upgrade fpd auto version 15.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model no ip icmp rate-limit unreachable ! ! no ip domain lookup ip cef no ipv6 cef
ip forward-protocol udp 402 vlan interface command: ip helper-address 10.20.255.255 (This is to allow the WoL "magic packet" udp 402 to be broadcasted to vlan 620) ROUTER 1: Configuration excerpt: interface GigabitEthernet0/0 ip address 192.168.200.6 255.255.255.252 ip address 192.168.200.6 255.255.255.252 ip nat outside ip virtual-reassembly in duplex auto speed auto ! interface GigabitEthernet0/1 ip address 192.168.2.254 255.255.255.0 ip nat inside ip virtual-reassembly in duplex auto speed auto ! router ospf 10 network 192.168.200.4 0.0.0.3 area 0 Apr 15, 2011 · no ip address shutdown serial restart-delay 0! interface Serial0/2 no ip address shutdown serial restart-delay 0! interface Serial0/3 no ip address shutdown serial restart-delay 0! no ip http server no ip http secure-server! ip forward-protocol nd!!!!! control-plane!!!!! line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 The ip-address option is only available in Interface subtype configuration mode. The no form of the command stops forwarding client requests for the UDP applications. The following example enables the forwarding of NTP broadcasts. Mar 13, 2018 · ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 6.7.8.9 no ip http server no ip http secure-server!! ip nat inside source static udp 192.168.240.5 5514 interface FastEthernet0 5514 ip nat inside source static tcp 192.168.240.5 514 interface FastEthernet0 514 ip nat inside source list 111 interface FastEthernet0 overload! ip access-list extended
IP connectivity with the new offsite DHCP server is ok and there is no firewall in between, nor ACL, etc. I was looking around ip forwarding command that my be used to block some broadcast specific traffic and realized that "ip forward-protocol nd" command was on devices between two sites.
ROUTER1(config)#no ip forward-protocol udp 138 Another way to forward specific UDP port traffic across Router/Layer 3 can be done via “ip forward-protocol udp [port number]” command. Below is an example where UDP service needs to be located on port 139, you can use the following command:
RTA(config-if)#ip helper-address 192.168.1.254 RTA(config-if)#exit RTA(config)#ip forward-protocol udp 517 RTA(config)#no ip forward-protocol udp 37 RTA(config)#no ip forward-protocol udp 49 RTA(config)#no ip forward-protocol udp 137 RTA(config)#no ip forward-protocol udp 138 IP Helper Address Example. Consider the complex sample helper address
ROUTER 1: Configuration excerpt: interface GigabitEthernet0/0 ip address 192.168.200.6 255.255.255.252 ip address 192.168.200.6 255.255.255.252 ip nat outside ip virtual-reassembly in duplex auto speed auto ! interface GigabitEthernet0/1 ip address 192.168.2.254 255.255.255.0 ip nat inside ip virtual-reassembly in duplex auto speed auto ! router ospf 10 network 192.168.200.4 0.0.0.3 area 0 Apr 15, 2011 · no ip address shutdown serial restart-delay 0! interface Serial0/2 no ip address shutdown serial restart-delay 0! interface Serial0/3 no ip address shutdown serial restart-delay 0! no ip http server no ip http secure-server! ip forward-protocol nd!!!!! control-plane!!!!! line con 0 exec-timeout 0 0 logging synchronous line aux 0 line vty 0 4 The ip-address option is only available in Interface subtype configuration mode. The no form of the command stops forwarding client requests for the UDP applications. The following example enables the forwarding of NTP broadcasts. Mar 13, 2018 · ip forward-protocol nd ip route 0.0.0.0 0.0.0.0 6.7.8.9 no ip http server no ip http secure-server!! ip nat inside source static udp 192.168.240.5 5514 interface FastEthernet0 5514 ip nat inside source static tcp 192.168.240.5 514 interface FastEthernet0 514 ip nat inside source list 111 interface FastEthernet0 overload! ip access-list extended