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Iceman0803

join:2012-05-18
Glendale, AZ

IGMP used as keep alive check?

Just curious to know if Cox uses IGMP as a keep alive check. I'm asking because I'd like to enable IGMP proxying in my router but, I heard that's not a good idea if your ISP uses it as a keep alive check.


Iceman0803

join:2012-05-18
Glendale, AZ
Anyone??


DrDrew
That others may surf
Premium
join:2009-01-28
SoCal
kudos:17
Keep what alive? Cox wouldn't be using it for customer side checks of data connections.

ajwees41
Premium
join:2002-05-10
Omaha, NE
reply to Iceman0803
why would Cox need a keep alive check? HSI is always on it's not like the TV's SDV.

cmos100

join:2004-08-24
Lafayette, LA
reply to Iceman0803
Docis does use polling every 15 to 20 seconds and is considered a hit or a miss, it is part of the T3 timeouts you may see, that's why modem's reset and go offline due to noise issues, guess you could call it keepalives.

Not related to polling, IGMP membership reports are multicast upstream, it would be better not to send the requests but I would imagine they would be blocked by an access list.


Iceman0803

join:2012-05-18
Glendale, AZ
Got it. Thanks all for the replies!