In your example,
VPDN is built over Ethernet, and there must be some kind of dialer where you
want your access-list on.
That imposes e1 ATM0 can be without access-list, the untrusted traffic, is
coming in encapsulated in PPP over E.
So within the PPP session there will be IP (dialer, say dhcp ne
CHAP authentication does not use a TCP/UDP port. CHAP is handled in the PPP
protocol between the client and the router. The router may use some other
type of authentication (RADIUS, TACACS+, etc) to authenticate the user to
some outside security server, but the CHAP communications is carried over
CHAP authentication does not use a TCP/UDP port. CHAP is handled in the PPP
protocol between the client and the router. The router may use some other
type of authentication (RADIUS, TACACS+, etc) to authenticate the user to
some outside security server, but the CHAP communications is carried over
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