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Hi,
Has anyone else seen the following MAC addresses show up on numerous ports recently:
0034.ba00.4000
0034ba01.4000
0030.3a00.4000
0030.3a01.4000
These have just started to show up on several user ports *same 4 MAC's on all interfaces effected* in ...
Hi,
I have a large existing PIM domain. This is based on PIM Sparse-mode, with several appropriately scoped PIM RP's, using BSR - lets call this "Domain 1). Another part of the network (previously under different admin) also configured PIM Sparse-Mod...
Hi,
I know PIM Sparse Mode is always meant to have a RP - but does anyone have experience of a single L3 switch and multicast forwarding where a PIM-RP does not exist?
I have a L3 switch that has multiple VLAN's and I am trying to confirm if a PIM RP...
Hi, I am trying to run a compliance report to check if intrusion prevention is enabled correctly on ASA's.
The check first identifies interfaces that are enabled by doing a check, parsing the config as blocks, checking for the string "shutdown". in e...
We had an issue last week at a remote location. Every few minutes the IPTV system would pixilate for a few seconds - there was no significant impact to unicast traffic. PIM-SM was enabled on the L3 VLAN interface - creating the local IGMP querier - t...
That is interesting as we also use ZScaler. I'll fire a question that way. I was thrown as we have a lot of Apple MAC's and Windows PC's, and only the Apple MAC's exhibited this behaviour - so that focused my attention on this being a Apple MAC issue...
Thanks, that's interesting. I haven't seen it generate so many MAC's - but maybe I haven't left the port unrestricted for long enough. I have also noticed that the "real" MAC always appears first, so as you say setting port security to protect rather...
No IP associated with the 4 repeating MAC's. You are right - all the interfaces where this has come up are MAC's, however the MAC's are also on external monitors like Lenovo T24m-29 / Dell - so connect to the network via USB to the monitor.
Given th...
Giuseppe,
Thanks very much - I spent so much time trying to find a solution I forgot that the filter I was testing was only for AutoRP - I did remember that it needed to be on the RP mapping agent - but was applying it to the elected BSR device - obv...
Although..... just had a thought - there are some "default" (background noise) groups in our network that are in use where we do not provide a PIM RP already - so just took a look at one of those - output below:
L3Switch#sh ip mroute 239.255.255.255I...