pfSense

hi again,

my configuration like below

wangw pppoe
dhcprelay host 10.1.1.1
dhcprelay host 10.1.1.2

but these ipadress behind ipsec network then when i save button click dhcprelay command output like

/usr/local/sbin/dhcrelay -i igb2.64 -i pppoe0 -a -m replace 10.1.1.1 10.1.1.2

and then relay doesn't work

system logs
----------------------------------------------------------------------------------------------
Mar 12 12:38:43 dhcrelay Unsupported device type 53 for "pppoe0"
Mar 12 12:38:43 dhcrelay For info, please visit https://www.isc.org/software/dhcp/
Mar 12 12:38:43 dhcrelay All rights reserved.
Mar 12 12:38:43 dhcrelay Copyright 2004-2018 Internet Systems Consortium.
Mar 12 12:38:43 dhcrelay Internet Systems Consortium DHCP Relay Agent 4.4.1
Mar 12 12:34:24 dhcrelay exiting.

after that i default code is as below

    foreach ($srvips as $srcidx => $srvip) {
        $destif = guess_interface_from_ip($srvip);
        if (!empty($destif)) {
            $dhcrelayifs[] = $destif;
        }
    }
    $dhcrelayifs = array_unique($dhcrelayifs);

    /* fire up dhcrelay */
    if (empty($dhcrelayifs)) {
        log_error(gettext("No suitable interface found for running dhcrelay!"));
        return; /* XXX */
    }

    $cmd = "/usr/local/sbin/dhcrelay -i " . implode(" -i ", $dhcrelayifs);

    if (isset($dhcrelaycfg['agentoption'])) {
        $cmd .= " -a -m replace";
    }

    $cmd .= " " . implode(" ", $srvips);
    echo $cmd;
    die();
    mwexec($cmd);
    unset($cmd);

and then i just added unset for pppoe

    foreach ($srvips as $srcidx => $srvip) {
        $destif = guess_interface_from_ip($srvip);
        if (!empty($destif)) {
            $dhcrelayifs[] = $destif;
        }
    }
    $dhcrelayifs = array_unique($dhcrelayifs);

    /* fire up dhcrelay */
    if (empty($dhcrelayifs)) {
        log_error(gettext("No suitable interface found for running dhcrelay!"));
        return; /* XXX */
    }

    unset($dhcrelayifs[1]);   //<-------------

    $cmd = "/usr/local/sbin/dhcrelay -i " . implode(" -i ", $dhcrelayifs);

    if (isset($dhcrelaycfg['agentoption'])) {
        $cmd .= " -a -m replace";
    }

    $cmd .= " " . implode(" ", $srvips);
    echo $cmd;
    die();
    mwexec($cmd);
    unset($cmd);

the command out put like below after that dhcprelay does work

/usr/local/sbin/dhcrelay -i igb2.64 -a -m replace 10.16.16.30 10.16.16.29