From: Paul Mackerras <paulus@samba.org>
Date: Fri, 23 Oct 2009 01:17:11 +0000 (+1100)
Subject: Increase default IPCP Conf-Nak limit
X-Git-Tag: ppp-2.4.7~58
X-Git-Url: http://git.ozlabs.org/?a=commitdiff_plain;h=29bdd4bcc2f9e92f7d880d03240b49d2a25870f7;p=ppp.git

Increase default IPCP Conf-Nak limit

Some 3G modems use IPCP Conf-Naks with the same values as we requested
as a way to delay the negotiation until they have contacted a server
over their radio network.  This increases the default value for the
ipcp-max-failure option from 5 to 100 so that we don't give up too
easily when this is happening.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---

diff --git a/pppd/ipcp.c b/pppd/ipcp.c
index cb873bb..12bcc61 100644
--- a/pppd/ipcp.c
+++ b/pppd/ipcp.c
@@ -575,6 +575,14 @@ ipcp_init(unit)
     f->callbacks = &ipcp_callbacks;
     fsm_init(&ipcp_fsm[unit]);
 
+    /*
+     * Some 3G modems use repeated IPCP NAKs as a way of stalling
+     * until they can contact a server on the network, so we increase
+     * the default number of NAKs we accept before we start treating
+     * them as rejects.
+     */
+    f->maxnakloops = 100;
+
     memset(wo, 0, sizeof(*wo));
     memset(ao, 0, sizeof(*ao));