Add a "query-dns" parameter to tell the interface we would like to get
DNS settings from the peer and a "-n" option to retrieve the results after the PPP connection is established.
This commit is contained in:
martin
parent
493d3dde20
commit
8c33bf88e8
@ -1,4 +1,4 @@
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.\" $NetBSD: pppoectl.8,v 1.6 2002/01/09 20:20:54 martin Exp $
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.\" $NetBSD: pppoectl.8,v 1.7 2002/03/02 16:27:02 martin Exp $
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.\" Copyright (C) 1997 by Joerg Wunsch, Dresden
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.\" All rights reserved.
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.\"
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@ -25,7 +25,7 @@
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.\"
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.\" From: spppcontrol.1,v 1.1.1.1 1997/10/11 11:30:30 joerg Exp
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.\"
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.\" $Id: pppoectl.8,v 1.6 2002/01/09 20:20:54 martin Exp $
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.\" $Id: pppoectl.8,v 1.7 2002/03/02 16:27:02 martin Exp $
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.\"
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.\" last edit-date: [Thu Aug 31 10:47:33 2000]
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.\"
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@ -48,6 +48,7 @@
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.Op Fl s Ar service-name
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.Op Fl a Ar access-concentrator-name
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.Op Fl d
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.Op Fl n Ar 1 \&| 2
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.Ar ifname
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.Sh DESCRIPTION
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There are two basic modes of operation: configuring security related
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@ -69,6 +70,10 @@ specifies the name of the service connected to.
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.It Fl d
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dump the current connection state information (this parameter is typically
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used alone, for informational purposes, not during interface configuration).
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.It Fl n Ar 1 \&| 2
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print the IP address of the primary or secondary DNS name server for this
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PPP connection. This is only available if DNS query is enabled, see
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.Ar query-dns .
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.El
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.Pp
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Typically, not both the access concentrator name and the service name are
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@ -223,6 +228,25 @@ retry count. If
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is set to
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.Em 0
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this feature is disabled.
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.It Ar query-dns Ns \&= Ns Em flags
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During PPP protocol negotiation we can query the peer for addreses of two name
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servers. If
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.Ar flags
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is
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.Em 1
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only the first server address will be requested, if
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.Ar flags
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is
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.Em 2
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the second will be requested. Setting
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.Ar flags
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to
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.Em 3
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queries both.
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.Pp
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The result of the negotiation can be retrieved with the
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.Fl n
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option.
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.El
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.Sh EXAMPLES
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.Bd -literal
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@ -1,4 +1,4 @@
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/* $NetBSD: pppoectl.c,v 1.5 2002/01/07 12:22:02 martin Exp $ */
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/* $NetBSD: pppoectl.c,v 1.6 2002/03/02 16:27:02 martin Exp $ */
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/*
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* Copyright (c) 1997 Joerg Wunsch
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@ -61,7 +61,7 @@ int
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main(int argc, char **argv)
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{
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int s, c;
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int errs = 0, verbose = 0, dump = 0;
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int errs = 0, verbose = 0, dump = 0, dns1 = 0, dns2 = 0;
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size_t off, len;
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const char *ifname, *cp;
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const char *eth_if_name, *access_concentrator, *service;
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@ -71,8 +71,9 @@ main(int argc, char **argv)
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struct spppidletimeout timeout;
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struct spppauthfailurestats authfailstats;
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struct spppauthfailuresettings authfailset;
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struct spppdnssettings dnssettings;
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int mib[2];
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int set_auth = 0, set_lcp = 0, set_idle_to = 0, set_auth_failure = 0;
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int set_auth = 0, set_lcp = 0, set_idle_to = 0, set_auth_failure = 0, set_dns = 0;
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struct clockinfo clockinfo;
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setprogname(argv[0]);
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@ -80,7 +81,7 @@ main(int argc, char **argv)
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eth_if_name = NULL;
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access_concentrator = NULL;
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service = NULL;
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while ((c = getopt(argc, argv, "vde:s:a:")) != -1)
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while ((c = getopt(argc, argv, "vde:s:a:n:")) != -1)
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switch (c) {
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case 'v':
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verbose++;
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@ -102,6 +103,18 @@ main(int argc, char **argv)
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access_concentrator = optarg;
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break;
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case 'n':
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if (strcmp(optarg, "1") == 0)
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dns1 = 1;
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else if (strcmp(optarg, "2") == 0)
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dns2 = 1;
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else {
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fprintf(stderr, "bad argument \"%s\" to -n (only 1 or two allowed)\n",
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optarg);
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errs++;
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}
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break;
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default:
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errs++;
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break;
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@ -143,6 +156,29 @@ main(int argc, char **argv)
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return 0;
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}
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if (dns1 || dns2) {
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/* print DNS addresses */
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int e;
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struct spppdnsaddrs addrs;
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memset(&addrs, 0, sizeof addrs);
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strncpy(addrs.ifname, ifname, sizeof addrs.ifname);
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e = ioctl(s, SPPPGETDNSADDRS, &addrs);
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if (e)
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print_error(ifname, e, "SPPPGETDNSADDRS");
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if (dns1)
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printf("%d.%d.%d.%d\n",
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(addrs.dns[0] >> 24) & 0xff,
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(addrs.dns[0] >> 16) & 0xff,
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(addrs.dns[0] >> 8) & 0xff,
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addrs.dns[0] & 0xff);
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if (dns2)
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printf("%d.%d.%d.%d\n",
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(addrs.dns[1] >> 24) & 0xff,
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(addrs.dns[1] >> 16) & 0xff,
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(addrs.dns[1] >> 8) & 0xff,
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addrs.dns[1] & 0xff);
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}
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if (dump) {
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/* dump PPPoE session state */
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struct pppoeconnectionstate state;
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@ -152,7 +188,7 @@ main(int argc, char **argv)
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strncpy(state.ifname, ifname, sizeof state.ifname);
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e = ioctl(s, PPPOEGETSESSION, &state);
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if (e)
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print_error(ifname, e, "PPPOEGETSESSION,");
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print_error(ifname, e, "PPPOEGETSESSION");
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printf("%s:\tstate = ", ifname);
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switch(state.state) {
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@ -187,6 +223,8 @@ main(int argc, char **argv)
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strncpy(authfailstats.ifname, ifname, sizeof authfailstats.ifname);
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memset(&authfailset, 0, sizeof authfailset);
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strncpy(authfailset.ifname, ifname, sizeof authfailset.ifname);
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memset(&dnssettings, 0, sizeof dnssettings);
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strncpy(dnssettings.ifname, ifname, sizeof dnssettings.ifname);
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mib[0] = CTL_KERN;
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mib[1] = KERN_CLOCKRATE;
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@ -199,7 +237,7 @@ main(int argc, char **argv)
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hz = clockinfo.hz;
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if (argc == 0) {
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if (argc == 0 && !(dns1||dns2)) {
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/* list only mode */
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/* first pass, get name lenghts */
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@ -310,6 +348,9 @@ main(int argc, char **argv)
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} else if (startswith("max-auth-failure=")) {
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authfailset.max_failures = atoi(argv[0]+off);
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set_auth_failure = 1;
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} else if (startswith("query-dns=")) {
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dnssettings.query_dns = atoi(argv[0]+off);
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set_dns = 1;
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} else
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errx(EX_DATAERR, "bad parameter: \"%s\"", argv[0]);
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@ -333,6 +374,10 @@ main(int argc, char **argv)
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if (ioctl(s, SPPPSETAUTHFAILURE, &authfailset) == -1)
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err(EX_OSERR, "SPPPSETAUTHFAILURE");
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}
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if (set_dns) {
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if (ioctl(s, SPPPSETDNSOPTS, &dnssettings) == -1)
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err(EX_OSERR, "SPPPSETDNSOPTS");
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}
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if (verbose) {
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if (ioctl(s, SPPPGETAUTHFAILURES, &authfailstats) == -1)
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@ -351,6 +396,7 @@ usage(void)
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"usage:\n"
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" %s [-v] ifname [{my|his}auth{proto|name|secret}=...] \\\n"
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" [callin] [always] [{no}rechallenge]\n"
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" [query-dns=3]\n"
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" to set authentication names, passwords\n"
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" and (optional) paramaters\n"
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" %s [-v] ifname lcp-timeout=ms|idle-timeout=s|max-auth-failure=count\n"
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@ -362,7 +408,9 @@ usage(void)
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" to specify (optional) data for PPPoE sessions\n"
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" %s -d ifname\n"
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" to dump the current PPPoE session state\n"
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, prog, prog, prog, prog, prog);
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" %s -n (1|2)\n"
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" to print DNS addresses retrieved via query-dns\n"
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, prog, prog, prog, prog, prog, prog);
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exit(EX_USAGE);
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}
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