How to utilize a block of ipv6 address when making requests









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Hello all: How would I configure http.transport to handle using different ipv6 addresses to issue http requests (makeshift proxies).
What I've tried:



 localAddr, err := net.ResolveIPAddr("ip6", "ipv6 address")
if err != nil
panic(err)

localTCPAddr := net.TCPAddr
IP: localAddr.IP,


webclient := &http.Client
Transport: &http.Transport
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer
LocalAddr: &localTCPAddr,
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
).DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
,



This fails with with ipv6 addresses:



panic: Get https://myip.addr.space/: dial tcp [localAddr]:0->[hostip?]:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.


I have two main questions. How can I:



  1. Find the range of available ipv6 addresses I can use

  2. Use them programmatically in golang to make http requests (again, mimicking a proxy)

I guess what i'm asking is: how can I replicate this: https://github.com/blechschmidt/freebind/blob/master/freebind.c in go.










share|improve this question























  • You can't connect to that URL via IPv6 anyway, because the remote server doesn't support IPv6. First, you'll have to use an IPv6-capable IP address service, like my own myip.addr.space
    – Michael Hampton
    Nov 9 at 18:03










  • @MichaelHampton Doing so will still result in a tls handshake timeout. I added this to the post. Thanks for notifying me.
    – robert
    Nov 10 at 22:40














up vote
0
down vote

favorite












Hello all: How would I configure http.transport to handle using different ipv6 addresses to issue http requests (makeshift proxies).
What I've tried:



 localAddr, err := net.ResolveIPAddr("ip6", "ipv6 address")
if err != nil
panic(err)

localTCPAddr := net.TCPAddr
IP: localAddr.IP,


webclient := &http.Client
Transport: &http.Transport
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer
LocalAddr: &localTCPAddr,
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
).DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
,



This fails with with ipv6 addresses:



panic: Get https://myip.addr.space/: dial tcp [localAddr]:0->[hostip?]:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.


I have two main questions. How can I:



  1. Find the range of available ipv6 addresses I can use

  2. Use them programmatically in golang to make http requests (again, mimicking a proxy)

I guess what i'm asking is: how can I replicate this: https://github.com/blechschmidt/freebind/blob/master/freebind.c in go.










share|improve this question























  • You can't connect to that URL via IPv6 anyway, because the remote server doesn't support IPv6. First, you'll have to use an IPv6-capable IP address service, like my own myip.addr.space
    – Michael Hampton
    Nov 9 at 18:03










  • @MichaelHampton Doing so will still result in a tls handshake timeout. I added this to the post. Thanks for notifying me.
    – robert
    Nov 10 at 22:40












up vote
0
down vote

favorite









up vote
0
down vote

favorite











Hello all: How would I configure http.transport to handle using different ipv6 addresses to issue http requests (makeshift proxies).
What I've tried:



 localAddr, err := net.ResolveIPAddr("ip6", "ipv6 address")
if err != nil
panic(err)

localTCPAddr := net.TCPAddr
IP: localAddr.IP,


webclient := &http.Client
Transport: &http.Transport
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer
LocalAddr: &localTCPAddr,
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
).DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
,



This fails with with ipv6 addresses:



panic: Get https://myip.addr.space/: dial tcp [localAddr]:0->[hostip?]:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.


I have two main questions. How can I:



  1. Find the range of available ipv6 addresses I can use

  2. Use them programmatically in golang to make http requests (again, mimicking a proxy)

I guess what i'm asking is: how can I replicate this: https://github.com/blechschmidt/freebind/blob/master/freebind.c in go.










share|improve this question















Hello all: How would I configure http.transport to handle using different ipv6 addresses to issue http requests (makeshift proxies).
What I've tried:



 localAddr, err := net.ResolveIPAddr("ip6", "ipv6 address")
if err != nil
panic(err)

localTCPAddr := net.TCPAddr
IP: localAddr.IP,


webclient := &http.Client
Transport: &http.Transport
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer
LocalAddr: &localTCPAddr,
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
).DialContext,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
,



This fails with with ipv6 addresses:



panic: Get https://myip.addr.space/: dial tcp [localAddr]:0->[hostip?]:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.


I have two main questions. How can I:



  1. Find the range of available ipv6 addresses I can use

  2. Use them programmatically in golang to make http requests (again, mimicking a proxy)

I guess what i'm asking is: how can I replicate this: https://github.com/blechschmidt/freebind/blob/master/freebind.c in go.







http go ipv6






share|improve this question















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edited Nov 10 at 22:42

























asked Nov 9 at 6:48









robert

848




848











  • You can't connect to that URL via IPv6 anyway, because the remote server doesn't support IPv6. First, you'll have to use an IPv6-capable IP address service, like my own myip.addr.space
    – Michael Hampton
    Nov 9 at 18:03










  • @MichaelHampton Doing so will still result in a tls handshake timeout. I added this to the post. Thanks for notifying me.
    – robert
    Nov 10 at 22:40
















  • You can't connect to that URL via IPv6 anyway, because the remote server doesn't support IPv6. First, you'll have to use an IPv6-capable IP address service, like my own myip.addr.space
    – Michael Hampton
    Nov 9 at 18:03










  • @MichaelHampton Doing so will still result in a tls handshake timeout. I added this to the post. Thanks for notifying me.
    – robert
    Nov 10 at 22:40















You can't connect to that URL via IPv6 anyway, because the remote server doesn't support IPv6. First, you'll have to use an IPv6-capable IP address service, like my own myip.addr.space
– Michael Hampton
Nov 9 at 18:03




You can't connect to that URL via IPv6 anyway, because the remote server doesn't support IPv6. First, you'll have to use an IPv6-capable IP address service, like my own myip.addr.space
– Michael Hampton
Nov 9 at 18:03












@MichaelHampton Doing so will still result in a tls handshake timeout. I added this to the post. Thanks for notifying me.
– robert
Nov 10 at 22:40




@MichaelHampton Doing so will still result in a tls handshake timeout. I added this to the post. Thanks for notifying me.
– robert
Nov 10 at 22:40

















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