Hello all, I require some assistance in regards to passing multicast traffic through a checkpoint firewall. We have a server which resides on a screened subnet behind a firewall on a 3750 running base image. It is the multicast source. The clients reside on the internal network. Now to allow multicast through this firewall is it as simple as allowing IGMP and allowing udp to the IP of the multicast group and the ports required? Do I have to worry about PIM? Does this make sense? Can someone help?
In order to make this work, the firewall must be capable of doing Pim. Pim has to be configured on the interfaces along with the rendevous point (RP). IGMP must be allowed to pass through the firewall as well. Then define the multicast address and what udp ports are required to pass through.
The switch was upgraded to the enhanced image. The rendevous point was defined along with PIM. PIM was also enabled on the interfaces requiring it.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...