#StackBounty: #networking #game-development #proxy #vpn #firewall Any good free full version software similar to "Hide All IP"?

Bounty: 50

I like to play games online with gameranger. The problem is that I get this nasty message :
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enter image description here

Port forwarding at my local machine does not seem to work. It seems I will have to contact ISP which is a pain. I found that using HideAllIp I no longer get this message and I am able to connect with everyone. It did not limit my bandwith either. But unfortunately it’s a paid software. Any free alternatives?
I tried HotspotShield but it did not work.


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#StackBounty: #networking #windows-server-2008-r2 #symantec #wpa Interpreting WPR traces in trying to better network throughput

Bounty: 50

In trying to analyze a 3thparty application’s throughput we have collected a WPR trace on two systems. One has Symantecs Intrusion Detection System enabled, the other one has not.

Following observations for the system with Intrusion Detection System enabled

  • Many NDIS.SYSndisInterruptDpc function calls that take > 100┬Ás.
    Microsoft’s recommendation for DPC is to not run longer than 100 microseconds.
    For a period of 10 seconds, 1.966 fragments out of 17.273 took longer than that.

  • The Microsoft-Windows-TCPIP provider shows everything is using TcpipSendSlowPath.
    I tried reading up on slow/fast paths but not really any idea what to make of this. Everything I can find about it is about routers or dedicated hardware and I doubt ETW can get any data from them (unless it’s passed back in the request/response somewhere?).

  • The Stacksview shows the packets going through IDSvia64.sys wich is Symantecs driver for packet inspection. There’s a lot more allocating and freeing of Pool memory because of this.

  • psping tests for bandwith are a factor 10 slower.

With that being said: the perceived performance of the application on the server with IDS is not worse than that on the server without IDS. psping tests on the other hand are far worse. A conondrum to me… .

Questions

  • How to find the culprit for taking to much time on DPC’s? I suspect IDS is involved but I can not link the handling of DPC’s to IDS (or anything else).
  • I would love to know what the Slow path actually means, what performance impact it might have and how to resolve it if possible/needed.

Edit

following the link provided by @Brian, this is how our DPC duration looks like on the system with IDS enabled (green) and on a system without IDS (blue)

  • for a duration of 10s
  • performing a task known to take some time

I’m pretty convinced that IDS is responsible for the longer duration of DPC’s.
If anyone can give some pointers on the second part of the question for the ammounts of TcpipSendSlowPath, there might be something worth investigating there too.

DPC Duration

A note on the fact that the amount of DPC’s on the system with IDS is much larger.

  • The easiest explanation for this is that the system was used at the time by others (it’s hard to find a slot with minimum activity)
  • I can imagine the settings of the NIC having a role in this but I wouldn’t know where to look for that (depending on buffer size, throughput, … more ISR’s and DPC’s getting triggered)
  • others (?) …


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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#StackBounty: #networking #vpn Unable to connect to ip address when connected to Cisco VPN

Bounty: 50

I am a lifelong Windows user trying to move to Ubuntu. I am struggling to connect to my work vpn and load the address 10.192.30.249.

Under the configuration for the Cisco VPN I have configured the route 10.192.0.0 with netmask 255.255.0.0.

I can connect to the vpn without any problems and when I run ifconfig, this is the vpn0 details:

vpn0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:10.19.253.82  P-t-P:10.19.253.82  Mask:255.255.252.0
          inet6 addr: 2a00:47c0:201:ffff::a/64 Scope:Global
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1406  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:475 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:0 (0.0 B)  TX bytes:46938 (46.9 KB)

The outcome of route

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         dsldevice.lan   0.0.0.0         UG    600    0        0 wlp2s0
5-10-235-196-eu dsldevice.lan   255.255.255.255 UGH   600    0        0 wlp2s0
10.18.0.0       *               255.254.0.0     U     50     0        0 vpn0
10.19.252.0     *               255.255.252.0   U     50     0        0 vpn0
10.192.0.0      *               255.252.0.0     U     0      0        0 vpn0
link-local      *               255.255.0.0     U     1000   0        0 wlp2s0
192.168.1.0     *               255.255.255.0   U     600    0        0 wlp2s0

When I run:
ip route get 10.192.30.249

It shows:

10.192.30.249 dev vpn0 src 10.19.253.82
cache

This makes me think that everything should be working fine. Unfortunately I am unable to load the ip address in the browser.

I’m totally stuck and not sure what the next steps to debug are. What look like the same routing settings work in Windows 10.


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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#StackBounty: #networking #firewall #openwrt Can't connect to WAN or Internet via wireless repeater running OpenWRT

Bounty: 100

I’ve set up what was previously my primary router as a wireless repeater using the OpenWRT relay configuration guide. It now connects to a new ISP provided router which is connected to the Internet.

There’s one problem: devices that are connected to the repeater (both wired and wireless) cannot get a response back from the Internet. Trying to make a connection to the Internet seems to result in never-ending loading spinners. I also cannot connect to my new primary router from these devices.

However, I have SSH’d into the router and managed to successfully make a cURL HEAD request to an Internet address. I can also download and install packages on the router (using opkg and LuCI) from the Internet successfully. I can also connect to my primary router from the repeater. All this makes me suspect that my firewall configuration is wrong, but I’m a bit lost when it comes to firewalls. I’ve attached a screenshot of my firewall configuration below and would appreciate if someone can point out what I’m doing wrong.

Additionally, as it used to be my primary router, it was previously configured with a 2.4GHz Guest WiFi network in addition to non-Guest 2.4GHz and 5GHz networks which was done by following one of the OpenWRT guides. I think (I did it years ago) I set up a second VLAN in order to set up the Guest network and I’m not sure if that’s what could be causing my issue.

2]


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