I rebooted the ASG router, which brought the memory utilization back down, but I am very puzzled as to what could have caused this.

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Yesterday evening, around 6pm, the memory use on my new ASG 8.1 box started to increase steadily, eventually consuming all of the swap space and most of the RAM. This happened at a time when there were no live users on the LAN, the only activity being my bit torrent traffic, which involves seeding torrents at a steady outbound rate limited to 25 KBytes/sec, and participating in two DHT clouds on the net. I have IDS exceptions defined for that traffic.
I rebooted the ASG router, which brought the memory utilization back down, but I am very puzzled as to what could have caused this.
What is software nics ?
is it some thing like wlan0 ? when we configure wireless seperate zone
thx
I have given some more thought to what I was doing Friday evening, from 6 PM onwards, that might have been a cause of this, and it was around then that I turned on one of the radio stations that are part of my ISP's IPTV service. I had guests over, and we listened to an IP streaming Classic Rock channel until around 2 am.
My Internet connection these days consist of a Cellpipe VDSL2 modem, followed by a Linksys 5-port 100BaseT switch, to which both the IPTV router (which distributes the multicast IP traffic to the set top boxes over the existing CATV coax lines in the walls) and my ASG router are connected. The WAN interface of the ASG is being hit regularly with both IGMP packets and with multicast IP traffic (addressed to 224.0.0.1) originating from my ISP's IPTV servers located on their in-house 10.254.125.00 network. So I have now added two rules:
1. An IPS exception to ignore all traffic from the 10.0.0.0/8 network
2. A packet filter rule at the top of the list to drop all packets addressed to 224.0.0.1.
I would also like to add a rule to drop all the IGMP packets hitting the WAN interface, but since that is a specific packet type, I don't know how to create it.
As for my nics, my LAN interface is the gigabit nic in the HP d530 machine I am using
[Broadcom Corporation NetXtreme BCM5782 Gigabit Ethernet]
And the WAN interface is a 3Com 3C905c
[3Com Corporation 3c905C-TX/TX-M [Tornado]]
These are both quality Ethernet transceiver implementations that do almost all the work in the hardware, not in the driver.