Compartir Ethernet sobre Airport (Macbook PRO, Mountain Lion) a Windows XP - Sin DHCP

No puedo compartir la red de Ethernet a WiFi (AirPort) en mi 10.8.2 (MBP 13", 2012, MacBookPro9,2)

Puedo crear redes protegidas y no protegidas, y autenticar desde Win XP. Pero entonces no hay DHCP corriendo, y tampoco en la configuración de IP estática soy capaz de compartir la red. Estos dos escenarios se describen a continuación.

En mi situación no puedo probarlo con Windows Vista/7, ya que no tengo ninguno disponible.

¿Hay alguien que haya intentado resolver este problema en Mountain Lion? La consola después de configurar la compartición está abajo.

Escenario 1 (DHCP)

# Ethernet
IP  10.0.0.146
GW  10.0.0.138
DNS 8.8.8.8

# AirPort - DHCP
# Some kind of self assigned address

# Win XP
# Connected (no matter if WPA2/WEP security is in place)
# Still in state "Resolving network address" (aka waiting for DHCP)

Escenario 2 (IP estática)

# Ethernet
IP  10.0.0.146
GW  10.0.0.138
DNS 8.8.8.8

# AirPort (Static IP)
IP  10.0.0.150
GW  10.0.0.146
DNS 8.8.8.8

# Windows XP
IP  10.0.0.151
GW  10.0.0.150
DNS 8.8.8.8

Consola

10.10.12 15:04:42,393 com.apple.InternetSharing[13724]: InternetSharing: com.apple.InternetSharing.broadcast-0 has been started
10.10.12 15:04:42,398 com.apple.InternetSharing[13724]: BCAST is ready [en0, mtu=1500, 2 DNS server(s), 0 DNSv6 server(s)]
10.10.12 15:04:42,398 com.apple.InternetSharing[13724]: removed addr=fe80::7ed1:c3ff:fe85:2df4 on en1
10.10.12 15:04:42,399 com.apple.InternetSharing[13724]: added addr=192.168.2.1 mask=255.255.255.0 on bridge0
10.10.12 15:04:42,400 com.apple.InternetSharing[13724]: com.apple.InternetSharing.broadcast-0 started: [DNS subnet=192.168.2/24 on bridge0]
10.10.12 15:04:42,400 com.apple.InternetSharing[13724]:   dns[0]: 10.0.0.138
10.10.12 15:04:42,400 com.apple.InternetSharing[13724]:   dns[1]: 10.0.0.138
10.10.12 15:04:42,401 com.apple.InternetSharing[13724]: com.apple.InternetSharing.broadcast-0 started: [DHCP subnet=192.168.2/24 on bridge0 mtu=1500 <---> en0 mtu=1500] max-mss=1460
10.10.12 15:04:42,401 com.apple.InternetSharing[13724]:   dns[0]: 192.168.2.1
10.10.12 15:04:42,402 com.apple.InternetSharing[13724]: started "natpmpd"
10.10.12 15:04:42,000 kernel[0]: bridge_attach_protocol: en1
10.10.12 15:04:42,000 kernel[0]: bridge0: successfully restored 1 suspended link-layer multicast membership(s) (err=0)
10.10.12 15:04:42,411 named[13726]: starting BIND 9.8.3-P1 -c /etc/com.apple.named.proxy.conf -f
10.10.12 15:04:42,411 named[13726]: built with '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--disable-dependency-tracking' '--prefix=/usr' '--sysconfdir=/private/etc' '--localstatedir=/private/var' '--enable-atomic=no' '--with-openssl=yes' '--with-gssapi=yes' '--enable-symtable=none' 'CC=/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.8.xctoolchain/usr/bin/cc' 'CFLAGS=-arch i386 -arch x86_64 -g -Os -pipe -gdwarf-2 ' 'LDFLAGS=-arch i386 -arch x86_64 -framework IOKit -framework CoreFoundation' 'CXX=/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.8.xctoolchain/usr/bin/c++' 'CXXFLAGS=-arch i386 -arch x86_64 -g -Os -pipe '
10.10.12 15:04:42,411 named[13726]: ----------------------------------------------------
10.10.12 15:04:42,411 named[13726]: BIND 9 is maintained by Internet Systems Consortium,
10.10.12 15:04:42,412 named[13726]: Inc. (ISC), a non-profit 501(c)(3) public-benefit 
10.10.12 15:04:42,412 named[13726]: corporation.  Support and training for BIND 9 are 
10.10.12 15:04:42,412 named[13726]: available at https://www.isc.org/support
10.10.12 15:04:42,412 named[13726]: ----------------------------------------------------
10.10.12 15:04:42,422 named[13726]: Warning: 'empty-zones-enable/disable-empty-zone' not set: disabling RFC 1918 empty zones
10.10.12 15:04:42,429 named[13726]: running
10.10.12 15:04:42,433 named[13726]: Warning: 'empty-zones-enable/disable-empty-zone' not set: disabling RFC 1918 empty zones
10.10.12 15:04:42,446 named[13726]: Warning: 'empty-zones-enable/disable-empty-zone' not set: disabling RFC 1918 empty zones
10.10.12 15:04:42,702 configd[18]: arp_client_transmit(en1) failed, Device not configured (6)
10.10.12 15:04:42,702 configd[18]: MANUAL en1: arp probe failed, arp_client_transmit(en1) failed, Device not configured (6)
10.10.12 15:04:46,452 mDNSResponderHelper[13723]: do_mDNSInterfaceAdvtIoctl: ioctl call SIOCGIFINFO_IN6 failed - error (22) Invalid argument
10.10.12 15:04:46,453 mDNSResponderHelper[13723]: do_mDNSInterfaceAdvtIoctl: ioctl call SIOCGIFINFO_IN6 failed - error (22) Invalid argument
10.10.12 15:04:46,453 mDNSResponderHelper[13723]: do_mDNSInterfaceAdvtIoctl: ioctl call SIOCGIFINFO_IN6 failed - error (22) Invalid argument
10.10.12 15:04:49,775 bootpd[13727]: server name Marek.local
10.10.12 15:04:49,776 bootpd[13727]: interface en0: ip 10.0.0.148 mask 255.255.255.0
10.10.12 15:04:49,776 bootpd[13727]: interface vnic0: ip 10.211.55.2 mask 255.255.255.0
10.10.12 15:04:49,776 bootpd[13727]: interface vnic1: ip 10.37.129.2 mask 255.255.255.0
10.10.12 15:04:49,776 bootpd[13727]: interface bridge0: ip 192.168.2.1 mask 255.255.255.0