[Xen-users] HVM Network Interfaces

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

Hi Everyone,

In my HVM guest's config file, I have given my guest 3 interface. I have 
called them fw1, fw2 and fw3. I have joined each interface to a bridge 
on the Dom0. This does appear when I do a "brctl show". However, there 
are 3 other interfaces also added called tapx.0,tapx.1 and tapx.2 (Where 
x is the domain ID for the guest). Furthermore, I am only able to run 
tcpdump on the tap interfaces; if I run tcpdump on the fw1,fw2 or fw3 
interfaces, no packets are detected.
This is a major issue when creating my firewall rules, as I wish to 
filter by interface, and I'm not entirely sure how to script it if the 
domain ID keep changing....
What is the point of the fw1-3 interfaces?

Any help is appreciated

Thanks

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