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Special Forums IP Networking How to establish site to site vpn - Linux machine and cisco asa? Post 302763733 by ashokvpp on Wednesday 30th of January 2013 11:45:16 AM
Old 01-30-2013
How to establish site to site vpn - Linux machine and cisco asa?

Hi,

I am trying to establish vpn between my linux server and cisco asa at client side.

I installed openswan on my cent os.

Linux Server
Code:
eth0 - 182.2.29.10    [ I have public IP]

Gateway - 182.2.29.1 [ and gw]



eth1 - 192.9.200.75  [ Internal Lan i/f]


I have simple IPtables Like
WAN="eth0"
LAN="eth1"
 iptables -t nat -A POSTROUTING -o $WAN -j SNAT --to 182.2.29.10


iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -i $LAN -j ACCEPT
iptables -A INPUT -i $WAN -j ACCEPT
 




iptables -A FORWARD -i lo -j ACCEPT
iptables -A FORWARD -i $LAN -j ACCEPT
iptables -A FORWARD -i $LAN -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -i $WAN -m state --state ESTABLISHED,RELATED -j ACCEPT
 


iptables -A FORWARD -s 192.9.200.0/255.255.255.0 -j ACCEPT
iptables -A FORWARD -d 192.9.200.0/255.255.255.0 -j ACCEPT
 


iptables -A OUTPUT -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT

Client side Cisco ASA - Device

Code:
Provided details :

BD gateway ip is 212.2.7.15 [ Public IP]
Source IP :- 192.168.91.224 
ESP-3DES-SHA1
 Lifetime is 86400 seconds (Phase-1) & 3600 seconds (Phase-2)
 Authentication is pre-shared

I need advise on configuring ipsec.conf and ipsec.secrets and what IP tables rules I need to add / modify.

Thanks

Best
Ashok
 

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asa(1)								   User Commands							    asa(1)

NAME
asa - convert FORTRAN carriage-control output to printable form SYNOPSIS
asa [-f] [file]... DESCRIPTION
The asa utility will write its input files to standard output, mapping carriage-control characters from the text files to line-printer con- trol sequences. The first character of every line will be removed from the input, and the following actions will be performed. If the character removed is: SPACE The rest of the line will be output without change. 0 It is replaced by a newline control sequence followed by the rest of the input line. 1 It is replaced by a newpage control sequence followed by the rest of the input line. + It is replaced by a control sequence that causes printing to return to the first column of the previous line, where the rest of the input line is printed. For any other character in the first column of an input line, asa skips the character and prints the rest of the line unchanged. If asa is called without providing a filename, the standard input is used. OPTIONS
The following option is supported: -f Start each file on a new page. OPERANDS
The following operand is supported: file A pathname of a text file used for input. If no file operands are specified, or `-' is specified, then the standard input will be used. EXAMPLES
The command a.out | asa | lp converts output from a.out to conform with conventional printers and directs it through a pipe to the printer. The command asa output shows the contents of file output on a terminal as it would appear on a printer. The following program is used in the next two examples: write(*,'(" Blank")') write(*,'("0Zero ")') write(*,'("+ Plus ")') write(*,'("1One ")') end Both of the following examples produce two pages of output: Page 1: Blank ZeroPlus Page 2: One Example 1 Using actual files a.out > MyOutputFile asa < MyOutputFile | lp Example 2 Using only pipes a.out | asa | lp ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of asa: LANG, LC_ALL, LC_CTYPE, LC_MES- SAGES, and NLSPATH. EXIT STATUS
The following exit values are returned: 0 All input files were output successfully. >0 An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
lp(1), attributes(5), environ(5), standards(5) SunOS 5.11 18 Apr 1995 asa(1)
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