Hi all

The task asks to allow ssh only from 4.8.6.0/24 and the restriction is that
we should not use access-lists. So FPM is the only answer.

In the following config, class-map get's matched and 4.8.6.0/24 is allowed
in. The issue is that I need a wildcard class-map to block other ssh
connections. But that doesn't
work in the following solution.


class-map type access-control match-all telblk
 match field TCP dest-port eq 22

class-map type access-control match-all vlan6
 match field TCP dest-port eq 22
 match field IP source-addr eq 4.8.6.0 mask 0.0.0.255

class-map type stack match-all tcp
 stack-start l2-start
 match field ETHER type eq 0x800 next IP
 match field IP protocol eq 6 next TCP


policy-map type access-control ssh
 class vlan6
 class telblk
   drop

policy-map type access-control tcp
 class tcp
  service-policy ssh

control-plane
 service-policy type access-control input tcp


The following two alternative class-maps also doesn't work

class-map type access-control match-all telblk
match field  ip source-addr  range 0.0.0.0 255.255.255.255

class-map type access-control match-all telblk
match field  ip source-addr 0.0.0.0 mask 255.255.255.255





With regards
Kings
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