Issue with HAProxy as a forward proxy

[Vijay Bais]

Hello,

I'm using HAProxy 1.8 as a forward proxy with below configuration

<snip>

defaults
    mode                    tcp
    log                     global
    option                  tcplog
    option                  dontlognull
    option http-server-close
    #option forwardfor       except 127.0.0.0/8
    option                  redispatch
    retries                 3
    timeout http-request    10s
    timeout queue           1m
    timeout connect         10s
    timeout client          1m
    timeout server          1m
    timeout http-keep-alive 10s
    timeout check           10s
    maxconn                 3000
    default-server          resolvers dns

resolvers dns
    nameserver local 127.0.0.1:53
    nameserver ns1   10.0.0.2:53
    hold valid 1s

listen c1
    bind   *10.0.0.26:10001 <http://10.0.0.26:10001>*
    mode   tcp
    option tcplog
    server r1 *ifconfig.co:80 <http://ifconfig.co:80>* source *<my Public
IP>*

</snip>

But this fails with below log lines for any internet destination (both in
TCP and HTTP mode):

10.0.1.79:47437 [06/Nov/2018:09:35:31.170] c1 c1/r1 1/-1/0 0 SC 1/1/0/0/3
0/0
Cannot bind to source address before connect() for backend c1.



Whereas, if the destination is under my control (with my source public IP
fully whitelisted), then the flow works perfectly.

Any help to know the actual issue would be great.

Thanks,
Vijay B