[Click] Checking SrcIP with another IP for Match?

[Dagang LI]

Hi Ashwin,

Why not use an IPClassifier to screen out IP packets with that undesired 
SRC IP?

Kind regards,
Dagang
Ashwin Chandra wrote:

>Hi all,
>Im trying to check the SRC IP of an IP packet with another IP and if they match, I want to discard the packet. I am not familiar totally with Pattern reocgnition and how many bytes excatly to strip off to get the SrcIP, so I was seeing if anyone knew how to do this.  
> 
>
>elementclass PPPClient {
>        // Classify incoming PPP packets (ppp-ip, ppp-ipcp, etc.)
>        input[0] -> IPPrint("incoming ppp") -> ppp :: Classifier(2/0021, 2/8021, -);
>        // Strip PPTP header from incoming IP packets and route them
>        ppp[0] -> Strip(4) -> CheckIPHeader(INTERFACES server) -> IPPrint("IPheader checked") -> [1]output;
>
>
>Thanks
>Ash
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