OpenForum RSS: �� CentOS � OpenWRT

�� CentOS � OpenWRT (mikmak)

Tue, 26 Mar 2013 20:44:03 GMT

��-��..
�� .. :) ��..

�� CentOS � OpenWRT (mikmak)

Tue, 26 Mar 2013 13:58:16 GMT

> tcpdump �� 188.40.74.10 ��?
> �� 188.40.74.10 �� , ��
> �� traceproto � CentOS|OpenWRT
>> �� -�� ף�� tcpdump-�?
> �� mtu, � ��

�� !
�� ̣�� (�� vnc) �� 11.22.33.44:8080 � �� , �� , ��-�� tcpdump (windump). �� :
�� ̣�� (192.168.10.104, windump)
192.168.10.104.2708 > 11.22.33.44.8080: S ...bla..bla..bla...............
192.168.10.104.2709 > 11.22.33.44.8080: S ....bla.. bla..bla..............
192.168.10.104.2708 > 11.22.33.44.8080: S ....bla...bla..bla.............

�� (DFL-210), �� , �� :
�� Proto (��) ��
SYN_RCVD TCP la

�� CentOS � OpenWRT (reader)

Tue, 26 Mar 2013 12:26:00 GMT

>[�� ]
> IP 11.22.33.44.8080 > 188.40.74.10.42628: Flags [S.], seq 1900179200, ack 2672373477,
> win 16384, options [mss 1452,nop,wscale 0,nop,nop,TS val 0 ecr 0,nop,nop,sackOK], length
> 0
> IP 188.40.74.10.42628 > 11.22.33.44.8080: Flags [S], seq 2672373476, win 5840, options
> [mss 1460,sackOK,TS val 604275249 ecr 0,nop,wscale 9], length 0
> IP 11.22.33.44.8080 > 188.40.74.10.42628: Flags [S.], seq 1900179200, ack 2672373477,
> win 16384, options [mss 1452,nop,wscale 0,nop,nop,TS val 0 ecr 0,nop,nop,sackOK], length
> 0
>> �� 11.22.33.44.8080 > 188.40.74.10.36930 - �� 188.40.74.10 �� ?
> ��, ��-�� 188.40.74.10 �� :(

tcpdump �� 188.40.74.10 ��?
�� 188.40.74.10 �� , �� traceproto � CentOS|OpenWRT

> �� -�� ף�� tcpdump-�?

�� mtu, � ��

�� CentOS � OpenWRT (mikmak)

Tue, 26 Mar 2013 11:46:55 GMT

��!

>> �� CentOs ��:
>> -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
>> -A POSTROUTING -s $LAN_1_NET -o $WAN_1 -j SNAT --to-source $WAN_1_IP
> �� snat?
> �� OpenWRT �� 192.168.153.253 -> 192.168.253.110 � �� OpenWRT ��
> �� 192.168.253.110:8080

��, �� ..
�� 192.168.253.110 (win2003) �� 192.168.254.200 (�� IP CentOS-�), �� SNAT �� CentOS.. �� 192.168.253.110:8080 nmap-�� OpenWRT - �� :

root@OpenWrt:~# nmap -sT -p 8080 192.168.253.110
Starting Nmap 5.51 ( http://nmap.org ) at 2013-03-26 14:41 MSK
Nmap scan report for 192.168.253.110
Host is up (0.00094s latency).
PORT STATE SERVICE
8080/tcp open http-proxy

�� - ��..
root@OpenWrt:~# tcpdump -tn -i pppoe-wan port 8080
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on pppoe-wan, link-type LINUX_SLL (

�� CentOS � OpenWRT (reader)

Tue, 26 Mar 2013 07:27:10 GMT

>[�� ]
> -A forward -i pppoe-wan -j zone_wan_forward -A zone_wan_forward -d 192.168.254.200/32
> -p tcp -m tcp --dport 8080 -j ACCEPT
> �� CentOS ��:
> -A PREROUTING -d 192.168.254.200 -p tcp -m tcp --dport 8080 -j DNAT
> --to-destination 192.168.253.110:8080
> -A FORWARD -d 192.168.253.110 -p tcp -m tcp --dport 8080 -j ACCEPT
> �� Win2003 �� 8080 ��
> �� CentOs ��:
> -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
> -A POSTROUTING -s $LAN_1_NET -o $WAN_1 -j SNAT --to-source $WAN_1_IP

�� snat?
�� OpenWRT �� 192.168.153.253 -> 192.168.253.110 � �� OpenWRT �� 192.168.253.110:8080

>[�� ]
> ��. �� - ��..
> �� nmap-�� OpenWRT ��, �� 8080 �� CentOS ��:
> root@OpenWrt:/lib/firewall# nmap -sT -p 8080 192.168.254.200
> Starting Nmap 5.51 ( http://nmap.org ) at 2013-03-26 03:10 MSK
> Nmap scan r

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������� ����� ����� CentOS � OpenWRT (reader)

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�� CentOS � OpenWRT (mikmak)

�� CentOS � OpenWRT (mikmak)

�� CentOS � OpenWRT (reader)

�� CentOS � OpenWRT (mikmak)

�� CentOS � OpenWRT (reader)