About

rajesh.jpg

Name : Rajesh T Sivanandan

Profession : Engineering Manager (Networking Industry) – for a jazzy professional title.

10+ years of Experience in Networking/Security Domain.

A Passionate Network/Security Engineer – by heart :-)

Cheers,

Rajesh T Sivanandan

Experts-Exchange Profile :: { Here }

Thanks for dropping by and I appreciate any comments you might have, may it be negative or positive (Either way it is only a perception)

 

Disclaimer: This is a personal weblog. I’m by no means a lawyer and none of my posts intent to hurt anybody’s feelings in any way!

The opinions expressed here represent my own and not those of my employer or any vendors I’ve written about. Any posts with suggestions/solutions try it at your own risk and I’m in no way be held responsible for any damages it might cause in your setup, though I test it out in my environment before I post them.

  • #1 written by Shibu 
    about 3 years ago

    Rajeshji very good site for the networkin guys..keep up the good work.

  • #2 written by Shibu 
    about 3 years ago

    Rajeshji very good site for the networking guys..keep up the good work.

  • #3 written by rsivanandan 
    about 3 years ago

    Thnx Shibu…

    Cheers,
    Rajesh

  • #4 written by riad 
    about 3 years ago

    great site mate :)

  • #5 written by Ron 
    about 2 years ago

    Very nice page. Keep up the nice work.

  • #6 written by Sari 
    about 10 months ago

    Excellent job Rajeshji ..
    I may need your help to work remotely on my area lf U do not mind pls? Of course U wil get money for any help.

  • #7 written by rsivanandan 
    about 10 months ago

    :-) Sure, why not

    Cheers,
    rsivannadan

  • #8 written by Faizan 
    about 2 months ago

    Dear Rajesh,

    very great effort for making it so simple….nice work ….

    i need some help in Juniper NS 5GT DSL Firewall Configuration for opening up inbound traffic and make VPN connection via ISA Server 2004. can you help me in this regard??

    Take care,
    Faizan

  • #9 written by rsivanandan 
    about 2 months ago

    Should not be a problem.

    Just do the MIP for the ISA server and allow all the ports required to this IP so that the connection gets through.

    Cheers,
    rsivanandan

  • #10 written by Faizan 
    about 2 months ago

    @rsivanandan
    i have opened the desired 3389 port on ISA as well as on Juniper NS5GT but unable to connect.

    Thanks,
    Faizan

  • #11 written by rsivanandan 
    about 2 months ago

    @Faizan
    I’d need to see the config.

    Mention the IP of interest as well.

    Cheers,
    rsivanandan

  • #12 written by Faizan 
    about 2 months ago

    dear,

    I’ve prepared one service named ‘VPN’ for remote access to our network by opening 3389 port. kindly check & update me accordingly.

    set clock dst-off
    set clock timezone 5
    set vrouter trust-vr sharable
    set vrouter “untrust-vr”
    exit
    set vrouter “trust-vr”
    unset auto-route-export
    exit
    set service “YahooCAM” protocol tcp src-port 0-65535 dst-port 5100-5100
    set service “EZ1″ protocol tcp src-port 0-65535 dst-port 5001-5003
    set service “EZ1″ + tcp src-port 0-65535 dst-port 5050-5050
    set service “KASB1″ protocol tcp src-port 0-65535 dst-port 6789-6800
    set service “KASB1″ + tcp src-port 0-65535 dst-port 8998-8998
    set service “ONSPEED” protocol tcp src-port 0-65535 dst-port 7000-7000
    set service “ONSPEED” + tcp src-port 0-65535 dst-port 5404-5405
    set service “SATURN” protocol tcp src-port 0-65535 dst-port 8000-8000
    set service “SATURN” + tcp src-port 0-65535 dst-port 8001-8001
    set service “SATURN” + tcp src-port 0-65535 dst-port 8002-8002
    set service “SATURN” + tcp src-port 0-65535 dst-port 8003-8003
    set service “SATURN” + tcp src-port 0-65535 dst-port 8004-8004
    set service “BloomBerg” protocol tcp src-port 0-65535 dst-port 5001-5003
    set service “BloomBerg” + tcp src-port 0-65535 dst-port 5050-5050
    set service “BloomBerg” + tcp src-port 0-65535 dst-port 6666-6666
    set service “BloomBerg” + tcp src-port 0-65535 dst-port 8194-8294
    set service “BloomBerg” + udp src-port 0-65535 dst-port 48129-48137
    set service “PTA” protocol tcp src-port 0-65535 dst-port 8080-8080
    set service “SC” protocol tcp src-port 0-65535 dst-port 1521-1521
    set service “SC” + tcp src-port 0-65535 dst-port 8090-8093
    set service “SC” + tcp src-port 0-65535 dst-port 3055-3055
    set service “IMS” protocol tcp src-port 0-65535 dst-port 5000-5005
    set service “IMS” + tcp src-port 0-65535 dst-port 5050-5050
    set service “VPN” protocol tcp src-port 1-65535 dst-port 3389-3389
    set service “PCM” protocol tcp src-port 7070-7074 dst-port 7070-7074
    set auth-server “Local” id 0
    set auth-server “Local” server-name “Local”
    set auth default auth server “Local”
    set auth radius accounting port 1646
    set admin name “*****”
    set admin password “nOGJJIrYMaMIc65KTsKOmzGtUDNzOn”
    set admin http redirect
    set admin auth timeout 0
    set admin auth server “Local”
    set admin format dos
    set zone “Trust” vrouter “trust-vr”
    set zone “Untrust” vrouter “trust-vr”
    set zone “VLAN” vrouter “trust-vr”
    set zone “Untrust-Tun” vrouter “trust-vr”
    set zone “Trust” tcp-rst
    set zone “Untrust” block
    unset zone “Untrust” tcp-rst
    set zone “MGT” block
    set zone “VLAN” block
    unset zone “VLAN” tcp-rst
    set zone “Untrust” screen tear-drop
    set zone “Untrust” screen syn-flood
    set zone “Untrust” screen ping-death
    set zone “Untrust” screen ip-filter-src
    set zone “Untrust” screen land
    set zone “V1-Untrust” screen tear-drop
    set zone “V1-Untrust” screen syn-flood
    set zone “V1-Untrust” screen ping-death
    set zone “V1-Untrust” screen ip-filter-src
    set zone “V1-Untrust” screen land
    set interface “trust” zone “Trust”
    set interface “untrust” zone “Untrust”
    set interface “adsl1″ pvc 8 35 mux llc protocol bridged zone “Null”
    unset interface vlan1 ip
    set interface trust ip ******/29
    set interface trust route
    set interface untrust ip ******/32
    set interface untrust route
    unset interface vlan1 bypass-others-ipsec
    unset interface vlan1 bypass-non-ip
    set interface trust ip manageable
    set interface untrust ip manageable
    set interface trust dhcp server service
    set interface trust dhcp server auto
    set interface trust dhcp server option gateway ******
    set interface trust dhcp server option netmask 255.255.255.0
    set interface “trust” webauth ssl-only
    set interface “trust” webauth-ip ******
    set flow tcp-mss
    set flow all-tcp-mss 1304
    unset flow no-tcp-seq-check
    set flow tcp-syn-check
    set hostname ns5gt-adsl

    set pki authority default scep mode “auto”
    set pki x509 default cert-path partial
    set ike respond-bad-spi 1
    unset ike ikeid-enumeration
    unset ipsec access-session enable
    set ipsec access-session maximum 5000
    set ipsec access-session upper-threshold 0
    set ipsec access-session lower-threshold 0
    set ipsec access-session dead-p2-sa-timeout 0
    unset ipsec access-session log-error
    unset ipsec access-session info-exch-connected
    unset ipsec access-session use-error-log
    set attack db mode Update
    set attack db schedule daily 00:00
    set av all fail-mode traffic permit
    set av http keep-alive
    set av http trickling default
    unset av http webmail enable
    set av profile “scan-mgr”
    unset ftp enable
    set ftp scan-mode scan-all
    set ftp decompress-layer 2
    unset http enable
    set http scan-mode scan-all
    unset imap enable
    set imap scan-mode scan-all
    set imap decompress-layer 2
    set pop3 scan-mode scan-all
    set pop3 decompress-layer 2
    unset smtp enable
    set smtp scan-mode scan-all
    set smtp decompress-layer 2
    exit
    unset av scan-mgr max-content-size drop
    unset av scan-mgr max-msgs drop
    set url protocol sc-cpa
    exit
    set anti-spam profile ns-profile
    set whitelist 202.101.171.50;
    set blacklist @cdwdrives.com;@dbaza.com;@etiquettes-martin.com;@euregio.net;@evesham.com;@executiveauto.com;@invitel.hu;@jeol.de;@marcusevanskl.com;@my-desk.com;@net.br;@regula.by;@rima-tde.net;@rr.com;@stingrayinternet.com;@verizon.net;
    set sbl default-server enable
    set default action tag subject “***SPAM*** ”
    exit
    set policy id 1 name “inbound” from “Trust” to “Untrust” “Any” “Any” “ANY” permit log
    set policy id 1 disable
    set policy id 1 av “scan-mgr”
    set policy id 1 anti-spam ns-profile
    set policy id 1
    set log session-init
    exit
    set policy id 2 name “mail” from “Untrust” to “Trust” “Any” “Any” “HTTP” permit log
    set policy id 2
    set service “IMAP”
    set service “MAIL”
    set service “ONSPEED”
    set service “PCM”
    set service “POP3″
    set service “SATURN”
    set service “SMTP”
    set service “VPN”
    set service “MS-EXCHANGE”
    set log session-init
    exit
    set policy id 3 name “AllAccess” from “Trust” to “Untrust” “Any” “Any” “BloomBerg” permit log
    set policy id 3 anti-spam ns-profile
    set policy id 3
    set service “DNS”
    set service “EZ1″
    set service “FTP”
    set service “HTTP”
    set service “HTTPS”
    set service “ICMP-ANY”
    set service “IMAP”
    set service “IMS”
    set service “KASB1″
    set service “MAIL”
    set service “MS-SQL”
    set service “MSN”
    set service “ONSPEED”
    set service “PCM”
    set service “POP3″
    set service “PTA”
    set service “SATURN”
    set service “SC”
    set service “SMTP”
    set service “TELNET”
    set service “VNC”
    set service “VPN”
    set service “YMSG”
    set service “MS-EXCHANGE”
    set log session-init
    exit
    set policy id 4 from “Untrust” to “Trust” “Any” “Any” “ANY” permit
    set policy id 4 disable
    set policy id 4
    exit
    set pppoe name “*****”
    unset pppoe name “*****” auth CHAP
    set pppoe name “*****” username “picicasset1″ password “bafVX9e9NUNzeysy4UCgBH5uADnJaY6ATQ==”
    set pppoe name “*****” interface untrust
    unset pppoe name “******” update-dhcpserver
    set syslog config “******”
    set syslog config “******” facilities local0 local0
    set syslog config “*******” log traffic
    set syslog src-interface trust
    set syslog enable
    unset log module system level debugging destination syslog
    set global-pro policy-manager primary outgoing-interface untrust
    set global-pro policy-manager secondary outgoing-interface untrust
    set nsmgmt bulkcli reboot-timeout 60
    set ssh version v2
    set config lock timeout 5
    set ntp server “0.0.0.0″
    set ntp server backup1 “0.0.0.0″
    set ntp server backup2 “0.0.0.0″
    set modem speed 115200
    set modem retry 3
    set modem interval 10
    set modem idle-time 10
    set snmp community “private1″ Read-Write Trap-on traffic version v1
    set snmp host “private1″ ****** 255.255.255.255 src-interface trust trap v1
    set snmp location “KHI”
    set snmp contact “****”
    set snmp name “*****”
    set snmp port listen 161
    set snmp port trap 162
    set vrouter “untrust-vr”
    exit
    set vrouter “trust-vr”
    unset add-default-route
    exit
    set vrouter “untrust-vr”
    exit
    set vrouter “trust-vr”
    exit

    regards,
    Faizan

  • #13 written by rsivanandan 
    about 2 months ago

    See, you need to first have a NAT in place (MIP/VIP) so that you can access your machine from outside world (internet).

    Steps are:- as I have mentioned in the pdf file.

    1. First create a MIP with a public ip and map it to your ISA’s internal ip address.
    2. Then create a policy to allow traffic for the service VPN onto that address.

    that’s it. done.

    Cheers,
    rsivanandan

  • #14 written by Faizan 
    about 2 months ago

    Thanks… but can you please guide me also… how can i do that.. i m not that much familiar with Juniper Firewall

    thanking you in advance…

    Regards,
    Faizan

  • #15 written by rsivanandan 
    about 2 months ago

    Do you have a free public IP that you can use?

    What is the internal IP address of the ISA server?

    Cheers,
    rsivanandan

  • #16 written by Faizan 
    about 2 months ago

    internal IP address of ISA server is 192.168.100.5

    i have prepared one ‘VPN’ rule for 3389… is that rule ok??

    Regards,
    Faizan

  • #17 written by rsivanandan 
    about 2 months ago

    That would do, so what is the external public ip that you want to use? Or do you want to use the outside interface ip itself?

    If yes, then look at the port forward tranlsation example I have in the document.

    If you have a public ip, the look at the 1-1 translation in the document.

    I have the policies as well in the same section. All you need to do is setup using that.

    Cheers,
    rsivanandan

  • #18 written by Faizan 
    about 2 months ago

    Many thanks… sorry for late replying.. I have not checked it yet.. I will definitely try & then let you know…

    Thank you so much for you kind co-operation.

    Regards,
    Faizan

  • #19 written by Faizan 
    about 1 month ago

    Dear Rajesh,

    I am still unable to do this… can you please help me… do you have any number so i can call you?…

    Regards,
    Faizan

  • #20 written by rsivanandan 
    about 1 month ago
  • #21 written by ram 
    about 3 weeks ago

    hi

    I need some clarification regarding P2P setup. I have a WAN network in which the core router is connected to all the remote routers using p2p Channelized STM1 ISP connection.How do i secure this P2P connection between the core router and remote router using a ISG 2000 firewall.

  • #22 written by rsivanandan 
    about 3 weeks ago

    Ram, it isn’t quite clear as to what you’re trying to do without details. You could setup an Network Level Encryption using IPSEC between all your branch routers to core. I believe you have ISG 2000 on the remote site but then I don’t know what you have at the core side.

    Cheers,
    rsivanandan

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