On Mar 5, Zach Fine wrote
> But I do have 'options GATEWAY' set. Maybe the configuration file I'm
> working with is pretty old, as IPFORWARDING isn't in it (easy enough
> to add though, I'm just surprised to not see it in the file but
> commented out). That's what puzzles me.

GATEWAY is the one you want to put in your kernel config file. If will implie
IPFORWARDING=1 if it's not already defined elsewhere (would most likely be in
the kernel config file), see netinet/ip_input.c for details.
options GATEWAY sets IPFORWARDING to 1, and bumps NMBCLUSTERS to 512.

> 
> Here's the relevant section of my kernel configuration file:
> 
> # Networking options
> options         GATEWAY         # packet forwarding
> options         INET            # IP + ICMP + TCP + UDP
> #options        MROUTING        # IP multicast routing
> options         NS              # XNS
> #options        NSIP            # XNS tunneling over IP
> options         ISO,TPIP        # OSI
> options         EON             # OSI tunneling over IP
> options         CCITT,LLC,HDLC  # X.25
> options         NETATALK        # AppleTalk networking protocols
> #options        PPP_BSDCOMP     # BSD-Compress compression support for
> # PPP
> #options        PPP_DEFLATE     # Deflate compression support for PPP
> #options        PPP_FILTER      # Active filter support for PPP
> # (requires bpf)
> options         PFIL_HOOKS      # pfil(9) packet filter hooks
> options         IPFILTER_LOG    # ipmon(8) log support
> 
> Any thoughts?

GATEWAY should imply ipforwarding=1 by default. Maybe you added GATEWAY to
your kernel config file and didn't do a 'make clean' after re-running config ?

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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