Re: [Serusers] Problem with NatHelper Module

maybe you are mixing old with new versions.

klaus

Steven Kokinos wrote:

Hello-

I'm in the process of implementing my first SER server, and am running into some issues with the nathelper module. I'm using 0.8.12, compiled locally. I set the debug level to 7, and am seeing the following errors, any help is greatly appreciated:

Mar 29 16:06:49 east ser: set_mod_param_regex: parameter <ping_nated_only> not found in module <nathelper> Mar 29 16:06:49 east ser: parse error (88,43-44): Can't set module parameter Mar 29 16:06:49 east ser: parse error (113,22-23): unknown command, missing loadmodule? Mar 29 16:06:49 east ser: parse error (225,32-33): unknown command, missing loadmodule?

Relevant config file entries:

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database loadmodule "/lib/ser/modules/mysql.so"

loadmodule "/lib/ser/modules/sl.so" loadmodule "/lib/ser/modules/tm.so" loadmodule "/lib/ser/modules/rr.so" loadmodule "/lib/ser/modules/maxfwd.so" loadmodule "/lib/ser/modules/usrloc.so" loadmodule "/lib/ser/modules/registrar.so" loadmodule "/lib/ser/modules/textops.so"

# Uncomment this if you want digest authentication # mysql.so must be loaded ! loadmodule "/lib/ser/modules/auth.so" loadmodule "/lib/ser/modules/auth_db.so"

# !! Nathelper loadmodule "/lib/ser/modules/nathelper.so"

# ----------------- setting module-specific parameters ---------------

Followed by lines 85-88:

# !! Nathelper modparam("registrar", "nat_flag", 6) modparam("nathelper", "natping_interval", 30) # Ping interval 30 s modparam("nathelper", "ping_nated_only", 1) # Ping only clients behind NAT

Section around line 113 (113 is the nat_uac_test):

 # !! Nathelper
    # Special handling for NATed clients; first, NAT test is
    # executed: it looks for via!=received and RFC1918 addresses
    # in Contact (may fail if line-folding is used); also,
    # the received test should, if completed, should check all
    # vias for rpesence of received
    if (nat_uac_test("3")) {
            # Allow RR-ed requests, as these may indicate that
            # a NAT-enabled proxy takes care of it; unless it is
            # a REGISTER

            if (method == "REGISTER" || ! search("^Record-Route:")) {
                log("LOG: Someone trying to register from private 

IP, rewriting\n");

Section around line 225 (failing on nat_ua_test again):

# !! Nathelper onreply_route[1] { # NATed transaction ? if (isflagset(6) && status =~ "(183)|2[0-9][0-9]") { fix_nated_contact(); force_rtp_proxy(); # otherwise, is it a transaction behind a NAT and we did not # know at time of request processing ? (RFC1918 contacts) } else if (nat_uac_test("1")) { fix_nated_contact(); }; }

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