2-30 Netopia ISDN Router Reference GuideConfiguring profiles for incoming calls.If the answer profile mustmatch...To force incoming calls to match connection profiles, select MustMatch a Defined Profile and toggle it to Yes. Incoming calls thatcannot be matched to a connection profile are dropped. To allowunmatched calls to be accepted as standard IP or IPX connections,toggle Must Match a Defined Profile to No.Note: If Must Match a Defined Profile is set to Yes, the itemsbelow it will not appear.If Must Match a Defined Profile is set to Yes, the answer profileonly accepts calls that use the same authentication method definedin the Authentication item. If PAP or CHAP are involved, the callermust have a name and password or secret that match one of theconnection profiles. The caller must obtain these from you or yournetwork administrator before initiating the call.For example, if Must Match a Defined Profile is set to Yes, andAuthentication is set to PAP, then only incoming calls that use PAPand match a connection profile will be accepted by the answerprofile.Note: If authentication in the default answer profile is set to CHAP,the value of the CHAP Challenge Name item must be identical tothe value of the Send Host Name item of the connection profile tobe matched by the caller.If the answer profiledoesn’t have to match...If Must Match a Defined Profile is set to No, Authentication isassumed to be None, even if you’ve set it to PAP or CHAP. Theanswer profile uses the caller’s IP address to match a connectionprofile. However, the answer profile cannot discover a caller’ssubnet mask; it assumes that the caller isnot subnetting its IPaddress:n Class A addresses are assumed to have a mask of 255.0.0.0n Class B addresses are assumed to have a mask of255.255.0.0n Class C addresses are assumed to have a mask of255.255.255.0. Class C address ranges are generally the
