Forward traffic coming into dummy interface on to another interface(?)
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Can I forward traffic coming into a dummy interface on to another interface? Or is it not a real interface at all even?
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- dummy0 eth6 anywhere anywhere
0 0 ACCEPT all -- eth6 dummy0 anywhere anywhere
I want all traffic reaching eth6 to go to dummy0, and all traffic reaching dummy0 to go to eth6.
Should I be doing something else really? (I can't use bridges or bonding).
iptables network-interface forwarding
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
add a comment |
Can I forward traffic coming into a dummy interface on to another interface? Or is it not a real interface at all even?
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- dummy0 eth6 anywhere anywhere
0 0 ACCEPT all -- eth6 dummy0 anywhere anywhere
I want all traffic reaching eth6 to go to dummy0, and all traffic reaching dummy0 to go to eth6.
Should I be doing something else really? (I can't use bridges or bonding).
iptables network-interface forwarding
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
You can refer this thread - unix.stackexchange.com/questions/126595/…
– HamTheAstroChimp
Mar 12 at 11:06
add a comment |
Can I forward traffic coming into a dummy interface on to another interface? Or is it not a real interface at all even?
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- dummy0 eth6 anywhere anywhere
0 0 ACCEPT all -- eth6 dummy0 anywhere anywhere
I want all traffic reaching eth6 to go to dummy0, and all traffic reaching dummy0 to go to eth6.
Should I be doing something else really? (I can't use bridges or bonding).
iptables network-interface forwarding
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
Can I forward traffic coming into a dummy interface on to another interface? Or is it not a real interface at all even?
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- dummy0 eth6 anywhere anywhere
0 0 ACCEPT all -- eth6 dummy0 anywhere anywhere
I want all traffic reaching eth6 to go to dummy0, and all traffic reaching dummy0 to go to eth6.
Should I be doing something else really? (I can't use bridges or bonding).
iptables network-interface forwarding
iptables network-interface forwarding
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
asked May 7 '15 at 14:46
JohnyTexJohnyTex
15018
15018
You can refer this thread - unix.stackexchange.com/questions/126595/…
– HamTheAstroChimp
Mar 12 at 11:06
add a comment |
You can refer this thread - unix.stackexchange.com/questions/126595/…
– HamTheAstroChimp
Mar 12 at 11:06
You can refer this thread - unix.stackexchange.com/questions/126595/…
– HamTheAstroChimp
Mar 12 at 11:06
You can refer this thread - unix.stackexchange.com/questions/126595/…
– HamTheAstroChimp
Mar 12 at 11:06
add a comment |
1 Answer
1
active
oldest
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Are you trying to just forward traffic without re-writing anything?
The way you've written your post makes me think that you are trying to get linux to act as an inline passive tap, but when you say that you want traffic going bi-directional I'm thinking you wanted an active tap.
My best guess right now without clarification of your goal would be something like:
http://backreference.org/2010/03/26/tuntap-interface-tutorial/
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
1
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Are you trying to just forward traffic without re-writing anything?
The way you've written your post makes me think that you are trying to get linux to act as an inline passive tap, but when you say that you want traffic going bi-directional I'm thinking you wanted an active tap.
My best guess right now without clarification of your goal would be something like:
http://backreference.org/2010/03/26/tuntap-interface-tutorial/
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
1
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
add a comment |
Are you trying to just forward traffic without re-writing anything?
The way you've written your post makes me think that you are trying to get linux to act as an inline passive tap, but when you say that you want traffic going bi-directional I'm thinking you wanted an active tap.
My best guess right now without clarification of your goal would be something like:
http://backreference.org/2010/03/26/tuntap-interface-tutorial/
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
1
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
add a comment |
Are you trying to just forward traffic without re-writing anything?
The way you've written your post makes me think that you are trying to get linux to act as an inline passive tap, but when you say that you want traffic going bi-directional I'm thinking you wanted an active tap.
My best guess right now without clarification of your goal would be something like:
http://backreference.org/2010/03/26/tuntap-interface-tutorial/
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
Are you trying to just forward traffic without re-writing anything?
The way you've written your post makes me think that you are trying to get linux to act as an inline passive tap, but when you say that you want traffic going bi-directional I'm thinking you wanted an active tap.
My best guess right now without clarification of your goal would be something like:
http://backreference.org/2010/03/26/tuntap-interface-tutorial/
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
answered May 7 '15 at 15:06
Raymond BannanRaymond Bannan
415
415
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
1
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
add a comment |
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
1
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
Can't use a TUN/TAP interface because traffic going to userspace will lower bandwidth too much. Actually what I want to achieve is to have a middlepoint where I can attach a GRE tunnel. I want to be able to forward traffic from this middlepoint to either a GPRS or Wifi interface at different points, while still having the tunnel intact. I also can't use bonding or bridges. :-(
– JohnyTex
May 7 '15 at 15:20
1
1
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
I think what you are proposing is basically to turn the box into a router, is that right? I believe bridging is the only means by which you could link two logical networks together without actually being the destination mac address in the frame.
– Raymond Bannan
May 7 '15 at 17:00
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Thanks for your input! Do you know though, exactly what a dummy interface does?
– JohnyTex
May 12 '15 at 14:19
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
Your question prompted me to read tldp.org/LDP/nag/node72.html . Beyond the contents of that article, I couldn't exactly say how a dummy interface works. I still think I'm confused less about the dummy interface and more about what you are trying to accomplish. The way your original question is written, it seems to me you'd be making a broadcast storm with src: any dst: any bidirectional, so I made some assumptions.
– Raymond Bannan
May 13 '15 at 23:12
add a comment |
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You can refer this thread - unix.stackexchange.com/questions/126595/…
– HamTheAstroChimp
Mar 12 at 11:06