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Cisco dhcp server and option 252 (Microsoft ISA client)en

Denis Reshetov
Level 1
Level 1

Helo

I have cisco 2821 router with configured dhcp server:

1 Reply 1

Denis Reshetov
Level 1
Level 1

wrong button

so, configuration of my dhcp

ip dhcp pool CLIENT
   import all
   network 10.31.67.128 255.255.255.128
   domain-name mysite.ru
   default-router 10.31.67.129
   dns-server 10.31.64.51 10.31.64.52
   option 252 ascii "http://gate.local:80/wpad.dat"
   lease 8

Computer (Windows XP) gets all network configuration from dhcp  except option 252. Microsoft ISA client can't detect ISA server automaticaly. If I switch to manual mode - it's OK

IOS c2800nm-advsecurityk9-mz.124-25c.bin

The same problem I have got on Cisco 871 routers when I try to upgrade IOS from c870-advipservicesk9-mz.124-6.T7.bin to up to date. So in that case I downgrade back to 12.4(6)T7, where option 252 works properly.

But 2821 is in more important site and I want up to date IOS on it. Is any deсision for that problem or I have to downgrade IOS on 2821 too?