[rfc5225] Positioning of IPX dynamic chain in profile 0x0104 (IP ONLY)

Hi ROHCWG,

I have a doubt regarding placing of IPX dynamic chain in IP ONLY profile. 

As per my understanding, under normal circumstances i.e.when IPX headers are absent, the dynamic chain shall terminate with IP dynamic chain as per RFC5225 ROHC-FNCOMPRESSED ipv4_endpoint_innermost_dynamic (for IPV4) Pg 60.

What should be behavior in presence of IPX headers (AH/GRE for IPV4 and HOP-BY-HOP/ROUTING/DESTINATION for IPV6)? 

Should the chain terminate with IP dynamic chain(as per ROHCFN named above) followed by IPX dynamic chain. 
 or 
Alternatively should it terminate in IP dynamic chain and IPX headers cannot be compressed in this profile. 

The confusion is because the ROHCFN says "ipv4_endpoint" for innermost IP header in IP ONLY profile. 

thanks and regards,
Suneeta Rao

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