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<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I
successfully configure <span class=SpellE>tproxy</span> all the steps.
(Patching Centos, Patching <span class=SpellE>iptables</span>, Building squid).
<span class=GramE>And also WCCP configuration with L4 WCCPv2.</span> When I
trying check gre0 tunnel with any packet flow but don’t found any
request.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>My
error
showed………………………………….</span></font>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>[<span
class=SpellE>root@heldas</span>]# <span class=SpellE>tcpdump</span> -<span
class=SpellE>i</span> gre0</span></font> <br>
<span class=SpellE><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>tcpdump</span></font></span><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>: WARNING: <span class=SpellE>arptype</span>
778 not supported by <span class=SpellE>libpcap</span> - falling back to cooked
socket</span></font> <br>
<span class=SpellE><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>tcpdump</span></font></span><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>: verbose output suppressed, use -v
or -vv for full protocol decode</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>listening
on gre0, link-type LINUX_SLL (Linux cooked), capture size 96 bytes</span></font>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>^C</span></font>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>0
packets captured</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>0
packets received by filter</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>0
packets dropped by kernel</span></font> <o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>My <span
class=SpellE>iptables</span> script
is……………………………</span></font>
<o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>#/bin/bash</span></font>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>/<span
class=SpellE>sbin/iptables</span> -t mangle -N DIVERT</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>/<span
class=SpellE>sbin/iptables</span> -t mangle -A PREROUTING -p <span
class=SpellE>tcp</span> -m socket -j DIVERT</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>/<span
class=SpellE>sbin/iptables</span> -t mangle -A DIVERT -j MARK --set-mark 1</span></font>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>/<span
class=SpellE>sbin/iptables</span> -t mangle -A DIVERT -j ACCEPT</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>/<span
class=SpellE>sbin/iptables</span> -t mangle -A PREROUTING -p <span
class=SpellE>tcp</span> --<span class=SpellE>dport</span> 80 -j TPROXY --<span
class=SpellE>tproxy</span>-mark 0x1/0x1 --on-port 3129</span></font> <o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>My
Physical connectivity structure is ……..</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Internet
cloud to Cisco core router to Juniper firewall to Distributed Cisco router to
Core Cisco switch to TPROXY </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Please
give me a solution …</span></font> <o:p></o:p></p>
<p><span class=GramE><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks</span></font> <br>
Engr.Mohammad</span> <font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Monzur Alam</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Network
& System Admin</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Grameen
CyberNet Ltd.</span></font> <br>
<st1:place><st1:City><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dhaka</span></font></st1:City><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>, </span></font><st1:country-region><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Bangladesh</span></font></st1:country-region></st1:place>
<o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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