Date: Sat, 10 May 1997 10:09:50 +0900 From: NAKAMURA Motonori <motonori@econ.kyoto-u.ac.jp> To: bugs@freebsd.org Subject: patch for IPCP/PPP Message-ID: <19970510100950F.motonori@econ.kyoto-u.ac.jp>
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Hello,
I'm using "ppp" distributed in FreeBSD on BSD/OS environment and
I have a trouble in IPCP/PPP negotiation.
In my environment, I'd like to be configuration free on IP address
and hope both IP addresses (client-side and server-side) are
provided from the server side. But some (e.g. YAMAHA RT100i) server
does not provide IP address of server-side at first time and
the "ppp" software accepts 0.0.0.0 straightforwardly...
In a Internet-Draft, draft-ietf-pppext-ipcp-network-01.txt, includes
the following description:
If negotiation about the remote IP-address is required, and the
peer did not provide the option in its Configure-Request, the
option SHOULD be appended to a Configure-Nak. The value of the
IP-address given must be acceptable as the remote IP-address, or
indicate a request that the peer provide the information.
So, the following patch is suitable for requesting valid IP address
again instead of accepting of invalid address 0.0.0.0, I think.
*** ../ppp.org/ipcp.c Sun Feb 23 22:21:00 1997
--- ipcp.c Sat May 10 09:39:20 1997
***************
*** 355,360 ****
--- 355,369 ----
break;
}
+ #if 1 /* reply NAK for 0.0.0.0 IP-address request */
+ if (ipaddr.s_addr == 0) {
+ /* draft-ietf-pppext-ipcp-network-01.txt */
+ bcopy(cp, nakp, 2);
+ bcopy(&ipaddr, nakp+2, length);
+ nakp += length;
+ break;
+ }
+ #endif
IpcpInfo.his_ipaddr = ipaddr;
bcopy(cp, ackp, length);
ackp += length;
Comments?
---
Faculty of Economics, Kyoto University, Kyoto, 606-01 JAPAN
Motonori NAKAMURA E-mail: <motonori@econ.kyoto-u.ac.jp>
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