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Cisco Router and Security Device Manager 2.5 User’s Guide
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Chapter40 More About....
Reasons Why an ISDN BRI Interface Configurati on May Be Read-Only
Reasons Why an ISDN BRI Interface Configuration May Be Read-Only
A previously configured ISDN BRI interface will be read-only and will not be
configurable in the following cases:
•An IP address is assigned to the ISDN BRI interface.
•Encapsulation other than ppp is configured on the ISDN BRI interface.
•The dialer-group or dialer string command is configured on the ISDN BRI
interface.
•dialer pool-member <x> is configured on the ISDN BRI interface, but the
corresponding dialer interface <x> is not present.
•Multiple dialer pool-members are configured on the ISDN BRI interface.
•The dialer map command is configured on the ISDN BRI interface.
•Encapsulation other than ppp is configured on the dialer interface.
•Either dialer-group or dialer-pool is not configured on the dialer interface.
•dialer-group <x> is configured on the dialer interface, but the corresponding
dialer -list <x> protocol command is not configured.
•dialer idle-timeout <num> with optional keyword (either/inbound) is
configured on the dialer interface.
•dialer string command with optional keyword class is configured on the
dialer interface.
•If using the ISDN BRI connection as a backup connection, once the backup
configuration is through Cisco SDM, if any of the conditions below occur, the
backup connection will be shown as read only:
–
The default route through the primary interface is removed
–
The backup interface default route is not configured
–
ip local policy is removed
–
track /rtr or both is not configured
–
route-map is removed
–
Access-list is removed or access-list is modified (for example, tracking
ip address is modified)