RE: lug-bg: Zebra

[bkrosnov@xxxxxxxx (Boyan Krosnov)]

Praw si, wyzmojno e da se naprawi taka kato kazwash, kato se izluchat
nqkolko problema

1.koj provider shte se nawie da prawi towa za teb 
otgowor: nikoj
reshenie:prawish nata na twoj router

2.kakwo stawa kogato dokato imash otworena tcp sesiq bgp-to ti preceni
che trqbwa da prekarwa trafika prez drugiq provider - 
otgowor: chupi ti se tcp sesiqta, zashtoto ti se smenq adresa na ednata
strana
reshenie: oswen direktnoto bgp i indirect peering prez tuneli i inside
global poolowe za da se zapazwat i source i destination adresa pri
wsqkakwi katastrofi

3.kakwo stawa ako iskash da si imash mail server pri tebe?
otgowor: s tolkowa prost nat ne mojesh da razreshish tozi problem,
zashtoto ne si siguren che pytq po kojto wlizat paketite kym mail
servera ti shte e syshtiq po kojto shte se wryshtat, syotwetno i
adresite shte sa razlichni i nqma izobshto da ti se zakacha tcp-to
reshenie: ili inside global poolowe (koeto e po-dobroto) ili nat +
policy routing (na razlichni routeri), nata se griji da raznatwa
paketite na adresa prez kojto e pochnala sesiqta a policy routinga se
griji da ne prashta s chujdi adresi prez neprawilnata mreja.

Izwinqwaj ako sym te oskyrbil :)

BR,
Boyan

> -----Original Message-----
> From: Stoyan Lekov [mailto:lekov@xxxxxxxxxxx]
> Sent: Friday, March 08, 2002 1:56 PM
> To: lug-bg@xxxxxxxxxxxxxxxxxx
> Subject: Re: lug-bg: Zebra
> 
> 
> ideiata mi beshe, che NAT-a se pravi ot dostavhick B ...
> iavno ne si me razbral ....
> toi realno mu dava ip-ta, koito sa na negovia router ... i 
> nat-va ip-tata na
> drugoto ISP ...
> prosto iavno ne mozhem da se razberem
> 
> i da, chel sam tova, i da, pravil sam NAT
> 
> ----- Original Message -----
> From: "Boyan Krosnov" <bkrosnov@xxxxxxxx>
> To: <lug-bg@xxxxxxxxxxxxxxxxxx>
> Sent: Friday, March 08, 2002 1:44 PM
> Subject: RE: lug-bg: Zebra
> 
> 
> > I cannot stress this enough!
> > pyrwo procheti
> > 
> http://www.cisco.com/warp/public/cc/pd/iosw/ioft/ionetn/tech/e
> mios_wp.ht
> > m
> > posle komentiraj.
> >
> > sorry che sym leko grub :)
> >
> > BR,
> > Boyan
> >
> > > -----Original Message-----
> > > From: Stoyan Lekov [mailto:lekov@xxxxxxxxxxx]
> > > Sent: Friday, March 08, 2002 12:42 PM
> > > To: lug-bg@xxxxxxxxxxxxxxxxxx
> > > Subject: Re: lug-bg: Zebra
> > >
> > >
> > > Ne znam dali pravilno sym razbral, no vsyshnost mozhe da
> > > stane, makar i
> > > malko po "bakalski"
> > > da priemem che ima 64 ip-ta ot dostavchik A i  dostavchik B e
> > > saglasen da mu
> > > dade i toi 64 ip-ta.
> > > dvete ISP-ta si puskat BGP kam nego, kato dostavchik A si 
> mu anonsira
> > > mrezhata (tyi kato e chast ot negovata), a dostavchik B mu
> > > nat-va ip-tata
> > > kam negovi, i realno syshto go anonsira (t.e. ima multihoming
> > > ot gledna
> > > tochka priemane ). Loshoto e veche ako ima web-servers, etc.
> > >
> > >
> > > pak kazvam, ne sym siguren dali sym razbral pravilno, i da,
> > > znam che ideiata
> > > ne e blestiashta :)
> 
> <CUT>
> 
> ==============================================================
> =============
> A mail-list of Linux Users Group - Bulgaria (bulgarian linuxers)
> http://www.linux-bulgaria.org/ Hosted by Internet Group Ltd. 
> - Stara Zagora
> 
> 
===========================================================================
A mail-list of Linux Users Group - Bulgaria (bulgarian linuxers)
http://www.linux-bulgaria.org/ Hosted by Internet Group Ltd. - Stara Zagora