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Created: Jun 4, 2012
anoxia Created: Jun. 4, 2012
I would also like more details. Specifically, I would like to know if the at&t home router firmwares for ipv6 will support routing subnets to internal devices. I, like many more technically inclined customers, have an interior gateway/router (currently openwrt). I do this becase: 1. The 2wire 3800hgv-b firmware is garbage. 2. The 2wire doesn't do 802.11n. 3. Security. If ...
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Created: May 4, 2011
anoxia Created: May. 4, 2011
" AT&T says it has some IPv6 services available to its enterprise customers today, and that it will be ready with a suite of IPv6 offerings for its enterprise and residential customers before market demand arrives." Dear AT&T, this is market demand arriving. Where is our native IPV6? I'm getting very tired of using a tunnel through another provider (HE). And maybe this ip...
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Created: Mar 28, 2010
anoxia Created: Mar. 28, 2010
I don't think you are understanding the issue. I have had those boxes unchecked forever. The salient point from all of the above long-winded and technical stuff is this: If a computer is NOT using DMZplus mode, then the 2wire WILL forward incoming ICMP traffic related to the computer's existing connections. If the computer IS using DMZplus mode, then the 2wire WILL NOT fo...
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Created: Mar 23, 2010
anoxia Created: Mar. 23, 2010
This doesn't seem to be fixed in the firmware that is being rolled out in the last week or so. I dropped this issue last year after running into a wall with lvl 2 support reporting that the engineers claim it's "as designed", but now I'm getting cranky. This is not compliant tcp/ip behavior and it needs to be fixed one way or another.
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Created: May 19, 2009
anoxia Created: May. 19, 2009
Notice to AT&T TECH SUPPORT: This IS NOT SPECIFIC TO 3RD PARTY ROUTERS. The same problem occurs if the setup is like this: INTERNET <---> 2WIRE 3800 Gateway <----> DMZplus HOST COMPUTER I have reproduced the same behavior by directly connecting a computer to the RG and assigning DMZplus mode to that computer. No 3rd party router was involved, and all software firewalls we...
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Created: May 19, 2009
anoxia Created: May. 19, 2009
Thanks mhetterm for confirming I'm not crazy. There is no way they can claim this as a "feature" since the RG does forward ICMP to non-DMZplus hosts.
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Created: May 18, 2009
anoxia Created: May. 18, 2009
phone line <----> RG 3800 HGV-B <----(DMZplus) ---> Linksys router <-----> Several computers The most obvious symptom is that traceroutes don't get any replies from routers beyond the RG. It is not a problem with the linksys firewall configuration. Running tcpdump on the external interface of the linksys shows 3 ICMP TTL exceeded packets from the first hop (the RG), then ...
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Created: May 16, 2009
anoxia Created: May. 16, 2009
Pacman and smarttrader, if you're talking about the same problem I've encountered, yes it does have to do with dhcp. I griped about it here, and it's still broken: http://utalk.att.com/utalk/board/message?board.id=HSIA&thread.id=4098 Problem overview: The DHCP request is broadcast. The DHCP lease offered by the server comes from the public gateway IP (in my case, call it ...
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Created: May 16, 2009
anoxia Created: May. 16, 2009
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Created: Jul 18, 2008
anoxia Created: Jul. 18, 2008
Unfortunately that's not a complete solution. Try tracerouting from the wrt54gs (or a computer plugged into the wrt54gs). In my setup, where I have enabled dmzplus mode for my wrt54, the 3800hgv-b seems to be blocking icmp ttl-exceeded messages (and possibly other icmp messages as well, haven't thoroughly tested). So it's still filtering some stuff, even after I've disabl...
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Created: Jul 2, 2008
anoxia Created: Jul. 2, 2008
If the 2wire RG gateway is the real dhcp server, why am I seeing dhcp renewal responses with the source ip address of the neighborhood's gateway? (If for example my external IP were 44.56.141.131/22, the dhcp responses would be coming from the default gateway, 44.56.140.1, NOT from the 2wire RG which is 172.16.0.1 at the moment.) It seems like the 2wire is just proxying t...
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Created: Jul 1, 2008
anoxia Created: Jul. 1, 2008
I've resorted to using my Linksys WRG54GL behind the 2wire RG because the 2wire (or the web interface) is missing several critical features: 1. No UPNP (I'm aware of the security implications, but consider what users are going to do if they can't get their favorite app working... they're going to enable DMZplus, which is a much bigger security issue and only works for one...
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